Bill Oakes Telecom Consultants (BOTC) Copyright All rights reserved. 1

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1 Example Transport Engineering Guide (TEG): Symmetricom TH5500 BITS distribution (Stratum 2 or 3 internal backup, external Stratum 1 source required). Section Table of Contents Page DS Data Sheet (weight, footprint, power, heat, timing, alarms/rm, DF blocks, CLEI) 2 1 Overview 3 2 Timing record book at BITS relay rack 3 3 Equipment requirements Initial versus Remote TH5500 rack Relay rack layouts 6 6 Management of timing output cables (panel material and installation routing) 7 7 Retrofit methods for old Symmetricom DCD-400/-523/ST2 and TSG-3800B systems 8 8 System relationships (output modules, wire wrap panels, circuit count, P/S timing) 9 9 System connection details Issue Revisions Date 1 Original release of Bill Oakes Symmetricom TH5500 Engineering Guide. February 7, Revise into Word format. October 1, 2007 Acronyms: American Wire Gauge (AWG), Battery Distribution Fuse Board (BDFB), Building Integrated Timing Supply (BITS), Central Office (CO), Competitive Local Exchange Carrier (CLEC), Composite Clock 64Kb/s timing (CC), Digital Signal 1.544Mb/s timing (DS1), Digital System Cross connect-manual (DSX), Distributing Frame (DF), Enclosed Network Extension-RT/CEV/Hut/Prem (ENE), Global Positioning System (GPS), Network Element (NE), Receive (RX), Support Engineering Guide (SEG), Transmit (TX). Bill Oakes Telecom Consultants (BOTC) bill.oakes@att.net, Copyright All rights reserved. 1

2 Data Sheet: The preface section of all BOTC-TEGs is a data sheet that provides quick view information for weight, relay rack footprint, peak (LIST 2)/nominal (LIST 1) power amperage, heat dissipation wattage, timing, alarms/remote management, DF block and CLEI code requirements. The data shown is an ultimate condition (relay rack fully loaded with equipment as designed in associated BOTC-TEG). Even though many relay rack deployments are partially equipped, BOTC recommends basing initial space/engineering planning on ultimate data since existing rack layouts typically grow to conclusion without follow-up involvement by planning personnel. If an external source unit is mounted in TH5500 rack 1, see BOTC-TEG-6700 TP1100 GPS, BOTC-TEG-6720 TS3500 GPS or BOTC-TEG-6740 TC4500 Cesium Data Sheet for additional requirements. Category Weight Footprint Peak/LIST 2 amperage at 42.6V Nominal/LIST 1 amperage at 52V Heat dissipation Timing (BITS) See remarks Alarms Remote management DF blocks CLEI codes (see BOTC-SEG-0600 section 4) Data sheet for Symmetricom TH5500 BITS distribution relay rack Requirement Remarks 300 pounds for TH5500 rack 1 (relay rack: 120, fuse panel: 10, three TH5500 See remarks shelves: 120, five wire wrap panels: 50). 240 pounds for TH5500 rack 2 (relay rack: 120, two TH5500 shelves: 80, four wire wrap panels: 40). 36" wide x 15" deep amps for TH5500 rack 1 only 9.29 amps for TH5500 rack 1 only See remarks 1 discrete for TH5500 rack 1 only 1 Ethernet or RS232 TL1 N/A PWFYAL1CAA D0MTP004RA D0MTN504RA 26" wide rack with 5" wide cable management panels on both sides. 5" deep front and rear guard boxes. Applies to TH5500 rack 1 and 2. Rack 1 and 2 must be adjacent per section 9 part B and L amps for master shelf amps for each of four expansion shelves. LIST 2 applies to TH5500 rack 1 only (one master, two expansion shelves). TH5500 rack 2 expansion shelves fused from rack 1 fuse panel amps for master shelf. 1.6 amps for each of four expansion shelves. LIST 1 applies to TH5500 rack 1 only (one master, two expansion shelves). TH5500 rack 2 expansion shelves fused from rack 1 fuse panel. 285 watts for TH5500 rack 1 (one master, two expansion shelves). 150 watts for TH5500 rack 2 (two expansion shelves). TH5500 master shelf requires external timing from source unit in same rack or distant CO (if Sonet ring distribution). See BOTC-TEG-6700 TP1100 GPS, BOTC-TEG-6720 TS3500 GPS or BOTC-TEG-6740 TC4500 Cesium. 1 status point required on CO alarm system for TH5500 rack 1 fuse panel alarm. TH5500 system has 3 (CR, MJ, MN) discrete alarms but connection is not required since integrated into TL1 remote management. TH5500 Ethernet is the first choice method. RS232 is alternate second choice. TH5500 rack 1 master shelf only. No DF connection for TH5500. Telect 0HPGMT05R fuse panel. Symmetricom TH5500 master shelf Symmetricom TH5500 expansion shelf 2

3 1. Overview: Symmetricom TH5500 equipment is designed to provide DS1 (1.544 Mb/s) or CC (64 Kb/s) timing distribution to NEs. The system is fed from an external stratum 1 source mounted in the same rack or in a distant CO (if stratum 1 distribution is via Sonet ring). See BOTC-TEG-6700 TP1100 GPS, BOTC-TEG-6720 TS3500 GPS or BOTC-TEG-6740 TC4500 Cesium for additional details on stratum 1 equipment and timing distribution methods. Internal TH5500 stratum 2 or 3 modules are used as a backup source only when the external stratum 1 input signal has been lost. The TH5500 system consists of a master shelf (140 outputs) and up to four expansion shelves (320 outputs each). Master shelf timing outputs are divided into four sets (A to D). Up to seven (20 each A to C left and right, D right only) DS1 or CC output modules (any combination) can be mounted on the master shelf rear side. Expansion shelf timing outputs are divided into eight sets (A to H). Up to sixteen (20 each A to H upper and lower) DS1 or CC output modules (any combination) can be mounted on the expansion shelf rear side. Each set (A to D on master, A to H on expansion) requires two (work and protect) front side output cards and supports 40 timing outputs. Master and expansion shelf output modules types can be mixed on any given alpha set (set can be 20 DS1/20 DS1, 20 CC/20 CC or 20 CC/20 DS1). A short 20 pair connectorized cable runs from each rear output module to a 160 circuit wire wrap panel (interface point for individual cables to NEs). One wire wrap panel is mounted above the master shelf (circuit active if shelf output cards/modules are equipped, not used). Expansion shelves have two wire wrap panels (one above, one below) with all circuits active if shelf output cards/modules are equipped. See section 8 for the relationship of master/expansion shelf output modules, wire wrap panels, numbering of output circuits and primary/secondary timing. Service Provider/Telco NEs are timed directly from a TH5500 in the same CO building. If customer NEs (in CO or outside of CO) are timed, a Bridging Office Repeater (BOR) shelf (ADC TBK-23R-28PNL for example) is added to isolate customer timing problems from feeding back into the TH5500 equipment. One side of each BOR module connects to a TH5500 output and the other side connects to a DSX-1 panel OUT jack so that signal quality can be tested (via OUT jack monitor port). Customers within the CO building (CLEC) receive timing from the DSX-1 panel jacks. If customers are located outside the CO, the DSX-1 panel jacks cross connect to T1 Repeater equipment drop side circuits for transport to them. Many Service Providers/Telcos have embedded Symmetricom DCD-400, DCD-523, DCD-ST2 or TSG-3800B timing distribution equipment that was deployed starting in the late 1980s. Since replacement parts (cards, modules, etc) are becoming difficult to obtain for these older systems, a retrofit procedure is detailed in section 7. This basically involves installation of new TH5500 shelves (without wire wrap panels or with partial use panels), removal of old DCD/TSG shelves, retention of old DCD/TSG wire wrap panels (so existing NE timing cables assigned to them remain intact) and running new 20 pair cables from TH5500 output modules to old DCD/TSG wire wrap panels. 2. Timing record book at BITS relay rack: Some Service Providers/Telcos may require installation vendors to establish a timing output assignment record at the BITS relay rack. This is normally intended to assist CO personnel in identifying the relationship of output ports at the BITS equipment and far end NE primary/secondary cable terminations. Since BITS equipment outputs tend to be high density, stenciling space may not be available (on shelves or rack uprights) to clearly show all of the far end NE assignments. One solution is to provide a timing record book for the BITS rack. Timing record book kits can be ordered from CJK Company (Doyle Conaway; jdoylec@sbcglobal.net; ; Garland, Texas) using part number CJK-2286A. The kit includes one red book binder (12 x 9 ) and one 36 long tether (one end screws into spare hole in rack upright). Record sheets can be inserted/bound into the book by installation. 3

4 3. Equipment requirements (see section 6 for cable management material): This section provides part number and mounting/usage details for equipment in TH5500 BITS relay racks. See section 5 figure 5A and 5B for assembly details. Plug-ins are listed here but they may be ordered separately via Service Provider/Telco Plug-in Inventory Control System (PICS) routines. A) Relay rack: One 7 Network rack with 1.75 x 23 drilling and 5 front welded guard box. See BOTC-SEG B) Rear guard box: One 5 rear field mount guard box must be ordered as a separate item so that the footprint depth is 15 (5 front, 5 rear). See BOTC-SEG C) Fuse panel: One Telect 0HPGMT05R high. See BOTC-SEG D) Master shelf kit with wire wrap panel: Symmetricom kit. For regular or dual applications per section 7 (interface point for all or most NE cables is new TH5500 wire wrap panel). Kit consists of one master shelf, one wire wrap panel, one input alarm module, one set of 19 to 23 rack adapter hardware, one system manual and eight cables (one spare, see section 9 part J). E) Master shelf kit without wire wrap panel: Symmetricom kit. For retrofit applications only per section 7 (interface point for all NE cables is existing DCD/TSG wire wrap panel). Kit consists of one master shelf, one input alarm module, one set of 19 to 23 rack adapter hardware and one system manual. F) Management card kit for master shelf (PICS item?): One Symmetricom kit per master shelf. Kit consists of one management card, one DB9 connection cable and one documentation CD. G) Input module for master shelf (PICS item?): Two Symmetricom input modules per master shelf. Any one of these four choices if initial TH5500 master. Stratum 3 choices only if remote TH5500 master per section : Stratum 2 module with 5 inputs for stand alone master shelf only (no expansion shelves) : Stratum 2 module with 9 inputs for stand alone master shelf or system with expansion shelves : Stratum 3 module with 5 inputs for stand alone master shelf only (no expansion shelves) : Stratum 3 module with 9 inputs for stand alone master shelf or system with expansion shelves. H) Output module for rear side of master shelf (PICS item?): Any combination of these two Symmetricom output module choices up to a total of seven per master shelf (timing set A to C left and right, D right only) : DS1 module (20 outputs) : CC module (20 outputs). J) Blank panel for unequipped output module position on rear of master shelf (PICS item?): One Symmetricom blank panel for each rear side position not equipped with part H output module. K) Output card for front side of master or expansion shelf (PICS item?): Two Symmetricom output cards (work and protect) for each timing set (A to D on master shelf or A to H on expansion shelf). Quantity is 2, 4, 6 or 8 per master shelf and 2, 4, 6, 8, 10, 12, 14 or 16 per expansion shelf. L) Blank panel for unequipped output card position on front of master or expansion shelf (PICS item?): One Symmetricom blank panel for each front side position not equipped with part K output card. M) Expansion shelf kit with two wire wrap panels: Symmetricom kit. Used for regular or dual applications per section 7 (interface point for all or most NE cables is new TH5500 wire wrap panels). Kit consists of one expansion shelf, one wire wrap panel (A-D stencil), one (E-H stencil), two line terminators (see section 9 part L), one gender changer, one set of 19 to 23 rack adapter hardware, one system manual, two cables (see section 9 part L) and sixteen cables (see section 9 part J). N) Expansion shelf kit without wire wrap panels: Symmetricom kit. Used for retrofit applications only per section 7 (interface point for all NE cables is existing DCD/TSG wire wrap panel). Kit consists of one expansion shelf, two line terminators (see section 9 part L), one gender changer, one set of 19 to 23 rack adapter hardware, one system manual and two cables (see section 9 part L). 4

5 P) Expansion shelf kit with one wire wrap panel: Symmetricom kit. Used for a mixture of regular and retrofit applications per section 7 (interface point for NE cables is a combination of new TH5500 wire wrap panel and existing DCD/TSG wire wrap panel). Kit consists of one expansion shelf, one wire wrap panel (A-D stencil), two line terminators (see section 9 part L), one gender changer, one set of 19 to 23 rack adapter hardware, one system manual, two cables (see section 9 part L) and eight cables (see section 9 part J). Q) Controller card for expansion shelf (PICS item?): Two Symmetricom controller cards per expansion shelf. R) Output module for rear side of expansion shelf (PICS item?): Any combination of these two Symmetricom output module choices up to a total of sixteen per expansion shelf (timing set A to H upper and lower) : DS1 module (20 outputs) : CC module (20 outputs). S) Blank panel for unequipped output module position on rear of expansion shelf (PICS item?): One Symmetricom blank panel for each rear side position not equipped with part R output module. T) Special link cable for expansion shelf 3 only: Two Symmetricom link cables (10 long) for system mult connection between expansion shelf 3 (TH5500 rack 2) and shelf 2 (TH5500 rack 1). Replaces cables (5 long) provided with expansion shelf kit (part M, N or P). See section 9 part L. U) Output module cable: When TH5500 master or expansion shelves are ordered without wire wrap panel (part E, N or P), one Symmetricom cable (4 long) must be provided for each output module that will be used for a retrofit application per section 7. This cable allows an overhead retrofit cable (see section 9 part M and N) to interface with the shelf output module. V) MINI-DSX panel: MINI-DSX provided as part of external source equipment list if stratum 1 unit mounted in the same rack as TH5500 BITS distribution system. MINI-DSX must be ordered as a separate item if source unit is in a distant CO (stratum 1 distribution is via Sonet ring). See BOTC-TEG-6700 TP1100 GPS, BOTC-TEG-6720 TS3500 GPS or BOTC-TEG-6740 TC4500 Cesium for additional details on stratum 1 equipment and timing distribution methods. ADC part number MINI-DSX-1/W-1.75X19 provides one MINI-DSX X19 three slot panel equipped with one MINI-DSX-1/WM-1.75X19 eight position jack module. Two additional jack modules can be mounted on the panel high, 19 wide, 9 deep. Panel mounting ears are reversible for 23 wide racks and designed for flush set out only. 4. Initial versus Remote TH5500 rack 1: Some COs may have multiple clusters of timed NEs in separate areas. In these cases, placing only one TH5500 system appearance in the CO can result abnormally long NE to BITS distribution cable runs (section 9 part K). To maximize cable efficiency, an Initial TH5500 rack 1 (section 5 figure 5A layout includes plate stratum 1 source and MINI-DSX equipment) is located in one NE area. Remote TH5500 rack 1 layouts (figure 5A does not include stratum 1 and MINI-DSX) can then be established in the other NE areas. Remote rack 1 master shelves receive their timing input from the Initial rack 1 master shelf per section 9 part H. Each rack 1 (Initial or Remote) can have it s own associated rack 2 (figure 5B layout). All Remote rack 1 master shelves require two (primary and secondary) CC timing cables from the Initial rack 1 master shelf. These CC cables provide the basic timing reference and have a length limit of Some jobs may also require (engineering vendors should consult with Service Provider/Telco personnel) two DS1 timing cables between the Remote and Initial master shelves. These DS1 cables are used for extraction of optional Synch Status Message (SSM) signals and have a length limit of 655. This may impact the CO placement location for Remote TH5500 rack 1 equipment. 5

6 5. Relay rack layouts: BOTC-TEG-6760 BV or 43 Fuse panel BV or 43 BU or 42 BU or 42 BT or 41 BT or 41 TH5500 wire wrap panel BS or 40 Space reserved for INSTALLATION: BS or 40 ( ) BR or 39 optional TP1100, TS3500 TH5500 master and expansion BR or 39 SNA BQ or 38 or TC4500 stratum 1 shelves are 10.5" high, 11.6" BQ or 38 BP or 37 source equipment. deep and 19" wide. Ears for BP or 37 TH5500 expansion BN or 36 23" wide mounting included BN or 36 shelf 3 BM or 35 MINI-DSX with shelf if ordered as part of BM or 35 ( ) BL or 34 section 3 shelf kit. Ears BL or 34 BK or 33 TH5500 wire wrap panel BK or 33 adjustable for flush, 2" or 5" BJ or 32 (1-140) BJ or 32 TH5500 wire wrap panel front set out (use 5" option). BH or 31 SNA BH or 31 ( ) BG or 30 BG or 30 SNA BF or 29 TH5500 wire wrap panels are BF or 29 TH5500 wire wrap panel BE or 28 TH5500 master shelf 3.5" high, 4.6" deep and 19" BE or 28 ( ) BD or 27 (1-140) wide. Ears for 23" wide BD or 27 SNA BC or 26 mounting included with panel BC or 26 BB or 25 if ordered as part of section 3 BB or 25 TH5500 expansion BA or 24 TH5500 wire wrap panel BA or 24 shelf kit. Front set out is 4.6". shelf 4 V or 23 ( ) V or 23 Mount panel on rear side of ( ) U or 22 SNA U or 22 rack uprights with wire wrap T or 21 T or 21 S or 20 pins facing rear aisle. See S or 20 TH5500 expansion TH5500 wire wrap panel R or 19 section 6 for rear cable R or 19 shelf 1 ( ) Q or 18 management trough. Q or 18 SNA P or 17 ( ) P or 17 N or 16 Space Not Available (SNA) N or 16 M or 15 TH5500 wire wrap panel openings in rack layout are for M or 15 L or 14 ( ) routing of section 9 part J L or 14 K or 13 SNA cables (rear of TH5500 shelf to K or 13 J or 12 TH5500 wire wrap panel front of wire wrap panel). J or 12 H or 11 ( ) H or 11 G or 10 SNA G or 10 F or 9 F or 9 E or 8 E or 8 TH5500 expansion D or 7 D or 7 shelf 2 C or 6 C or 6 ( ) B or 5 B or 5 A or 4 A or 4 AA or 3 TH5500 wire wrap panel AA or 3 AB or 2 ( ) AB or 2 AC or 1 SNA AC or 1 AD or 0 AD or x x 23 FIGURE 5A FIGURE 5B Layout for Initial TH5500 rack 1. Remote TH5500 rack 1 (per section 4) is same layout except no stratum 1 source or MINI-DSX equipment (plate 35-41). Rack footprint is 36" wide and 15" deep due to section 6 cable management. Rack 1 and 2 must be adjacent per section 9 part B and L. Layout for TH5500 rack 2 associated with Initial or Remote TH5500 rack 1. Rack footprint is 36" wide and 15" deep due to section 6 cable management. Rack 1 and 2 must be adjacent per section 9 part B and L. 6

7 6. Management of timing output cables (panel material and installation routing): Due to the large number of NE single pair timing cables at the TH5500 system location (up to 780 for rack 1, up to 640 for rack 2), special horizontal and vertical cable management routines must be used. These requirements do not apply when TH5500 shelves are added (without their own wire wrap panel) for a section 7 retrofit job. To provide horizontal cable management: A) Order one ADC AUX-0X0388 trough for each TH5500 wire wrap panel. Mount trough first (then wire wrap panel) on rear side of rack uprights with floor of trough about.75 below bottom of wire wrap panel shown in section 5 figure 5A or 5B layout. Do not use backplate provided with trough. Trough projects 5 out from rear of rack uprights. B) Order two Telect cable tie brackets for each TH5500 wire wrap panel. Mount brackets on rear side of left and right rack uprights at same level as top of wire wrap panel shown in figure 5A or 5B. C) Route cables from wire wrap panel timing set A, B or E, F pins through upper panel clips and then onto tie bracket. D) Route cables from wire wrap panel timing set C, D or G, H pins through lower panel clips and then into trough. E) Cables from wire wrap panel timing set A, C or E, G pins exit to left side (as viewed from rear of rack). Cables from timing set B, D or F, H exit to right side. F) Do not store cable slack in rear trough area. Access to wire wrap panel timing output pins must be kept open for CO personnel test/troubleshoot routines. To provide vertical cable management: N) If the CO overhead area is 7, order two Nor-Cal Metals ( , G cable storage panels and six D junction plates for each TH5500 rack. The storage panel is tall, 5 wide and deep. If the CO overhead area is 9, order two G panels ( tall) and eight junction plates. If the CO overhead area is 11 6, order two G panels ( tall) and ten junction plates. Mount junction plates in normal predrilled hole positions on front side of rack uprights. Place storage panels in required positions (adjacent to uprights and projecting 5 to front). Use L portion of junction plates to mark hole centers on storage panels. Drill and tap holes (for No. 12 screw with 24 threads per inch) in storage panels. Secure storage panels to L portion of junction plates with screws. Screws must have.375 long threaded area to provide full insertion and prevent excessive extension into cable area of storage panel. P) Part N storage panels have a full height unistrut channel on the interior front side. Nor-Cal ring assemblies attach to the unistrut channel at TH5500 wire wrap panel levels to provide a vertical to horizontal cable transition. Four ring assemblies should be ordered for each storage panel (eight per TH5500 rack). Each ring assembly consists of one NC-D ring (4 x 5 ) and one NC-G1240-1S-4.5 tie bar kit. The tie bar kit includes one NC- D1240-1S-4.5 tie bar, one A4008 unistrut nut, one RHMS.375 x.75 screw and two screws. The rings need to have a.75 hole drilled by installation (provides clearance for RHMS screw head). Mount ring to tie bar using the two screws and drill a small hole in ring centered in the existing.44 tie bar hole. Remove ring from tie bar and drill a.75 hole in ring using the new small hole as a center point. Mount A4008 unistrut nut at proper level in panel unistrut channel. Attach tie bar to unistrut nut using RHMS screw. Attach ring to tie bar using screws. Q) When a part N storage panel is located at the end of a lineup, special Nor-Cal end guard parts are required. If the CO overhead area is 7, order one G end guard kit and three NC-D1250 support brackets. If 9 area, order one G end guard kit and four support brackets. If 11 6 area, order one G end guard kit and five support brackets. 7

8 7. Retrofit methods for old Symmetricom DCD-400/-523/ST2 and TSG-3800B systems: Many Service Providers/Telcos have embedded Symmetricom DCD-400, DCD-523, DCD-ST2 or TSG-3800B timing distribution equipment that was deployed starting in the late 1980s. Since replacement parts (cards, modules, etc) are becoming difficult to obtain for these older systems, a retrofit procedure is required. This basically involves installation of new TH5500 shelves (without wire wrap panels or with dual use panels), removal of old DCD/TSG shelves, retention of old DCD/TSG wire wrap panels (so existing NE timing cables assigned to them remain intact) and running new 20 pair cables from TH5500 output modules to old DCD/TSG wire wrap panels. TH5500 shelves can be fully used for regular applications (all output modules cabled to TH5500 wire wrap panel in same rack), fully used for retrofit applications (all output modules cabled to existing DCD/TSG wire wrap panels) or a dual application mixture of regular and retrofit (shelf output module cabling split between TH5500 and DCD/TSG wire wrap panels on a per job custom basis). The intent of this section is to provide an overview of the issues associated retrofit jobs. A) Preliminary walkthough: Due to the unique conditions in each CO, a preliminary walkthrough is required to review the existing BITS equipment design and develop a detailed retrofit plan. At a minimum, the walkthrough team should consist of Service Provider/Telco representatives (job coordinator, BITS maintenance engineer, etc) and the engineering vendor. B) Continued use of existing DCD/TSG wire wrap panels: Each embedded DCD/TSG shelf has an associated wire wrap panel (located near the shelf) for termination of single pair NE timing cables. In most cases, retrofit jobs will remove the DCD/TSG shelf but leave the wire wrap panel in place. This eliminates the need to recable all NEs to a new wire wrap panel associated with the new TH5500 shelf. TH5500 shelf output modules will connect to the DCD/TSG wire wrap panel per section 9 part M or N. If existing DCD/TSG shelves have a very small number of NE timing assignments, it may be more cost effective to recable the NE circuits to a new TH5500 wire wrap panel and remove the existing DCD/TSG wire wrap panel. C) Designation of DCD/TSG wire wrap panels: Each remaining DCD/TSG wire wrap panel must be designated with a unique number on a per rack basis to support field identification and office record entries. D) Length limit for timing circuits: Timing circuits have a length limit of 655 for DS1 and 1500 for CC. When DCD/TSG systems were originally deployed, the impact of extending these circuits (section 9 part M or N cabling) was not anticipated. Retrofit jobs should evaluate all existing NE to DCD/TSG wire wrap panel cable lengths and then add the section 9 part M or N footage. If the sum exceeds length limit standards, the NEs must be recabled to a new wire wrap panel. E) TH5500 vertical cable management panels: Vertical cable management panels shown in section 6 part N-Q are intended for TH5500 racks with a full set of NE timing circuits cabled to wire wrap panels in that rack. This involves floor space planning for 5 of extra width on each side of the TH5500 rack. Retrofit jobs will probably run most of the TH5500 timing outputs to existing DCD/TSG wire wrap panels and initially minimize or eliminate the need for these 5 panels. As future NEs are deployed in the TH5500 rack area (with timing cables run directly to TH5500 wire wrap panels), the need for cable management in that rack will gradually increase but the left/right 5 side space may no longer be available. Placement of the 5 left/right panels on initial retrofit jobs is a preliminary walkthrough judgment decision. F) TH5500 Primary and Secondary timing groups: The section 8 figure 8 Primary or Secondary column has two choices for P and S timing groups (sets of 40 or sets of 20). Sets of 40 is the preferred method since it provides a clean left/right split for wire wrap panel outputs to rack upright cabling (per section 6 part E) and keeps TH circuit front side output cards all P or all S. Sets of 20 should only be used on retrofit jobs were existing NE P and S cable terminations on DCD/TSG wire wrap panels drives the need for this method (to more fully utilize section 9 part M or N TH5500 output module cable connections that are also in sets of 20 timing circuits). 8

9 8. System relationships: Figure 8 shows the relationship of TH5500 master/expansion shelf output modules, wire wrap panels, output circuits and primary/secondary timing. TH5500 shelves can be fully used for regular applications (all output modules cabled to TH5500 wire wrap panel in same rack, all figure 8 columns apply as shown), fully used for retrofit applications (all output modules cabled to existing DCD/TSG wire wrap panels per section 7, the two figure 8 wire wrap columns do not apply) or a dual application mixture of regular and retrofit (shelf output module cabling split between TH5500 and DCD/TSG wire wrap panels on a custom basis, the two figure 8 wire wrap columns partially apply based on job conditions). The figure 8 Primary or Secondary column has two choices for P and S timing groups (sets of 40 or sets of 20). Sets of 40 (aligns with system alpha timing sets) is the preferred method since it provides a clean left/right split for wire wrap panel outputs to rack upright cabling (per section 6 part E) and keeps the 40 circuit front side output cards all P or all S. Sets of 20 should only be used on retrofit jobs were existing NE P and S cable terminations on DCD/TSG wire wrap panels drives the need for this method. Shelf Master Exp 1 to 4 Shelf output module timing set and position (viewed from shelf rear) Wire wrap panel location (upper or lower) and connector designations Wire wrap panel T/R/S pin sets Timing outputs (respectively) Master Exp 1 Exp 2 Exp 3 Exp 4 Primary (P) or Secondary (S) timing A (right) A1-20 (upper) A P P A (left) A21-40 (upper) A S B (right) B1-20 (upper) B P S B (left) B21-40 (upper) B S C (right) C1-20 (upper) C P P C (left) C21-40 (upper) C S D (right) D1-20 (upper) D S P A (upper) A1-20 (upper) A P P A (lower) A21-40 (upper) A S B (upper) B1-20 (upper) B P S B (lower) B21-40 (upper) B S C (upper) C1-20 (upper) C P P C (lower) C21-40 (upper) C S D (upper) D1-20 (upper) D P S D (lower) D21-40 (upper) D S E (upper) E1-20 (lower) E P P E (lower) E21-40 (lower) E S F (upper) F1-20 (lower) F P S F (lower) F21-40 (lower) F S G (upper) G1-20 (lower) G P P G (lower) G21-40 (lower) G S H (upper) H1-20 (lower) H P S H (lower) H21-40 (lower) H S FIGURE 8 Relationship of TH5500 shelf output modules, wire wrap panels, output circuits and P/S timing 9

10 9. System connection details: A) Fuse panel: Step 1 (Dual load redundant input feeders from BDFB): See BOTC-SEG-0500 section 11 for BDFB fuse/feeder sizing responsibility and BOTC-SEG-0700 section 9 for wire material. Provide 4 two hole lugs (.25 studs on.625 centers) for input feeder connections (wire size determined by vendor based on job conditions). Total LIST 2 for TH5500 equipment is amps (4.23 for master shelf, 2.35 for each of four expansion shelves). If an external source unit is mounted in TH5500 rack 1, see BOTC-TEG-6700 TP1100 GPS, BOTC-TEG-6720 TS3500 GPS or BOTC-TEG-6740 TC4500 Cesium Data Sheet for additional LIST 2 requirements. Step 2 (Chassis ground): Provide 1 two hole lug (No.10 studs on.625 centers) for 6 AWG wire. Connect lug to relay rack ground using 6 AWG wire (see BOTC-SEG-0700 section 7 and 9). Step 3 (Alarms): Run 24 AWG Black and Red-Black wire pair (see BOTC-SEG-0700 section 8) from fuse panel R set NO/C wire wrap pins to CO alarm system (Dantel for example) status point. No connection required for V and A set pins. B) Power for TH5500 master and expansion shelves: Step 1 (intra-rack wiring): Connect TB1 BATTERY A -48V, RETURN and TB2 BATTERY B -48V, RETURN screws to TH5500 rack 1 fuse panel output positions using 16 AWG Black/Red-Black wire pair (see BOTC-SEG-0700 section 8). Use Red-Black lead for -48V and Black lead for RETURN. Provide Thomas & Betts (or generic equivalent) RB14-6 ring terminals for shelf end and RB484 ring terminals for fuse panel end. TH5500 rack 2 must be adjacent to TH5500 rack 1 so that expansion shelf 3 and 4 can be powered from the rack 1 fuse panel. Step 2 (fuse panel fuses and designation pins): Maximum drain is shown in part A. Shelf has special glass cartridge internal 10 amp slow-blow fuses. Fuse externally at 10 amp so external fuses fail before internal fuses. See BOTC-SEG-0500 section 14 for GMT fuse and designation pin part numbers. C) Chassis ground for TH5500 master and expansion shelves: Step 1 (intra-rack wiring): Connect TB1 BATTERY A ground symbol screw to relay rack ground using spare 16 AWG Black wire from part B. Provide Thomas & Betts (or generic equivalent) RB14-6 ring terminal for shelf end. No connection required for TB2 BATTERY B ground symbol screw since internally common with TB1 screw. D) Ethernet TL1 remote management for TH5500 master shelf: This is the first choice method for remote management (see part E for second choice RS232 method if Ethernet hub equipment not available in CO). Step 1 (external remote management cable): Run electrical Ethernet cable with straight pinning (see BOTC- SEG-0100 section 10) from TH5500 master shelf LAN RJ45 port (pin 1 is TX+, pin 2 TX-, pin 3 RX+, pin 6 RX-) to CO Remote management Ethernet hub equipment port. E) RS232 TL1 remote management for TH5500 master shelf: This is an alternate second choice method for remote management (see part D for first choice Ethernet method). Step 1 (external remote management cable): Run Black Box ( CBCC XXX cable (-XXX denotes footage) from TH5500 master shelf LOCAL port (DB9 female, DCE rated) to CO Remote management AI Switch DP (asynch) port. See BOTC-SEG-0100 section 11. F) Chassis ground for TH5500 wire wrap panel: Step 1 (intra-rack wiring): Connect one of the two GND screws to relay rack ground using spare 16 AWG Black wire from part B. Provide Thomas & Betts (or generic equivalent) RB14-8 ring terminal for panel end. This provides a ground path for the wire wrap panel S punchings in part K. No connection required for other GND screw both common. 10

11 G) Timing inputs for Initial TH5500 rack 1 master shelf: Timing inputs for the Initial TH5500 rack 1 master shelf are obtained from MINI-DSX outputs in same relay rack per BOTC-TEG-6700 section 8 part M (TP1100 GPS), BOTC-TEG-6720 section 5 part M (TS3500 GPS) or BOTC- TEG-6740 section 5 part E (TC4500 Cesium). Step 1 (intra-rack wiring): See BOTC-SEG-0100 section 9 for cable methods. Run two (primary and secondary) single pair timing cables from TH5500 master shelf DS1 TERM IN pinfield (primary Tip lead to T1 pin, primary Ring lead to R1, secondary Tip lead to T2, secondary Ring lead to R2) to MINI-DSX panel. Connect drain wire for each cable to associated DS1 TERM IN S pin (cables are hard grounded at TH5500 end). H) Timing inputs for Remote TH5500 rack 1 master shelf: Step 1 (consult with Service Provider/Telco): Timing inputs for the Remote TH5500 rack 1 master shelf are obtained from Initial TH5500 rack 1 master shelf outputs (see part K). All Remote rack 1 master shelves require two (primary and secondary) CC timing cables. These CC cables provide the basic timing reference and have a length limit of Some jobs may also require (engineering vendors should consult with Service Provider/Telco personnel) two DS1 timing cables between the Remote and Initial master shelves. These DS1 cables are used for extraction of optional Synch Status Message (SSM) signals and have a length limit of 655. Step 2 (CC cables): See BOTC-SEG-0100 section 9 for cable methods. Run two (primary and secondary) single pair timing cables from Initial TH5500 rack 1 master shelf CC outputs (part K) to the Remote TH5500 rack 1 master shelf CC IN pinfield (primary LX lead to T1 pin, primary LY lead to R1, secondary LX lead to T2, secondary LY lead to R2). Do not ground cables at Remote TH5500 rack 1 master shelf end since they are hard grounded at the far end (S punching in part K). Step 3 (optional DS1 cables): See BOTC-SEG-0100 section 9 for cable methods. Run two (primary and secondary) single pair timing cables from Initial TH5500 rack 1 master shelf DS1 outputs (part K) to the Remote TH5500 rack 1 master shelf DS1 TERM IN pinfield (primary Tip lead to T1 pin, primary Ring lead to R1, secondary Tip lead to T2, secondary Ring lead to R2). Do not ground cables at Remote TH5500 rack 1 master shelf end since they are hard grounded at the far end (S punching in part K). J) TH5500 wire wrap panel connection to TH5500 master and expansion shelf output modules: TH5500 shelves can be fully used for regular applications (all output modules cabled to TH5500 wire wrap panel in same rack), fully used for retrofit applications (all output modules cabled to existing DCD/TSG wire wrap panels per part M or N) or a dual application mixture of regular and retrofit (shelf output module cabling split between TH5500 and DCD/TSG wire wrap panels on a custom basis). Step 1 (intra-rack cables): cables (4 long) are provided per section 3 part D, M or P. Run these cables between TH5500 master and expansion output modules (rear side of shelf) and associated TH5500 wire wrap panel front side connectors. See section 8 figure 8 for connector relationship. K) Timing outputs for TH5500 wire wrap panel (associated with main or expansion shelf): Step 1 (consult with Service Provider/Telco): Engineering vendors should consult with Service Provider/Telco personnel about the planned DS1 versus CC ratio of section 3 part H and R output modules. Due to the unique NE conditions in each CO, this will probably be a custom ratio on each TH5500 job. Step 2 (connect timing cables from NEs as required): Each TH5500 wire wrap panel output port (see section 8 figure 8 for circuit count) has T, R, S pins. See BOTC-SEG-0100 section 9 for cable methods. Single pair primary and secondary timing cables will be run to the TH5500 wire wrap panel as required from far end NE timing input circuits. Connect Tip lead (if DS1) or LX lead (if CC) to T pin and Ring lead (if DS1) or LY lead (if CC) to R pin. Connect drain wire for each cable to associated S pin (cables are hard grounded at TH5500 end). The total length of these timing circuits (TH5500 to NE input) is limited to 655 if DS1 or 1500 if CC. 11

12 L) Link cables for TH5500 expansion shelf: Step 1 (intra-system cables): Two cables (5 long) are provided with each TH5500 expansion shelf per section 3 part M, N or P. For expansion shelf 1, 2 and 4, run these cables as follows: Expansion shelf 1 LINK 1 IN, LINK 2 IN connectors to master shelf LINK 1, LINK 2 respectively. Expansion shelf 2 LINK 1 IN, LINK 2 IN connectors to expansion shelf 1 LINK 1 OUT, LINK 2 OUT respectively. Expansion shelf 4 LINK 1 IN, LINK 2 IN connectors to expansion shelf 3 LINK 1 OUT, LINK 2 OUT respectively. For expansion shelf 3, discard the cables and use the two cables (10 long) provided per section 3 part T. Run these cables as follows: Expansion shelf 3 LINK 1 IN, LINK 2 IN connectors to expansion shelf 2 LINK 1 OUT, LINK 2 OUT respectively. TH5500 rack 2 must be adjacent to TH5500 rack 1 since the overall system mult length (sum of link cables from expansion shelf 4 to 3, 3 to 2, 2 to 1, 1 to master shelf) is limited to 30. Step 2 (line terminators): Two line terminators and one gender changer are provided with each TH5500 expansion shelf per section 3 part M, N or P. The last expansion shelf in a TH5500 system requires a line terminator in the LINK 1 OUT (male) and LINK 2 OUT (female) connectors. Since the line terminator is female, a gender changer must be used in the LINK 2 OUT connector. Line terminators are not required on the master shelf (if no expansion shelves in system) or on any intermediate expansion shelves. M) Retrofit cabling from TH5500 master or expansion shelf to existing DCD wire wrap panel: TH5500 shelves can be fully used for regular applications (all output modules cabled to TH5500 wire wrap panel in same rack per part J), fully used for retrofit applications (all output modules cabled to existing DCD wire wrap panels per part M) or a dual application mixture of regular and retrofit (shelf output module cabling split between TH5500 and DCD wire wrap panels on a custom basis). See section 7 for retrofit methods. Symmetricom DCD-400, DCD-523 and DCD-ST-2 wire wrap panels have special 10 circuit connectors. TH5500 master and expansion shelf rear side output modules have 20 circuits. A single 20 circuit cable is used for the TH5500 to DCD relay rack run with a short Y cable at the DCD end (upper legs of Y are 10 circuits each). Configuration of TH5500 output modules (DS1 or CC? Primary or secondary?) must align with existing NE timing assignments on the DCD wire wrap panel. Step 1 (interface cable): For each TH5500 master or expansion shelf output module that will be used for retrofit of an existing DCD system, connect one cable (ordered per section 3 part U if no TH5500 wire wrap panel or provided per section 3 part D, M or P if TH5500 wire wrap panel) to the output module. Step 2 (cable to DCD rack): For each step 1 cable, provide one Telect ( XXX cable (-XXX denotes footage). Cable is 25 pair (20 active, 5 dead) 24 AWG shielded 1161A type (see BOTC-SEG section 9 and 14) with Amp female connector on one end and Amp male on other end (both ends are 90 degree screw lock). Run female end of cable from TH5500 output module interface cable to DCD wire wrap panel rack (male end of cable). Female connector has 3 insulated drain wire that must be grounded at TH5500 rack. If new TH5500 shelves and existing DCD wire wrap panels are in the same rack, XXX cabling will be a very short run within that rack. Step 3 (Y cable within DCD rack): For each step 2 cable, provide one Symmetricom cable (54 overall length). Cable has Amp 25 pair female on bottom leg of Y (connects to step 2 cable) and two 48 upper legs with special 10 circuit female connectors (mates with DCD wire wrap panel). Bottom leg connector on Y cable has a 3 insulated drain wire that does not need to be connected since this is a short intra-rack run. 12

13 N) Retrofit cabling from TH5500 master or expansion shelf to existing TSG wire wrap panel: TH5500 shelves can be fully used for regular applications (all output modules cabled to TH5500 wire wrap panel in same rack per part J), fully used for retrofit applications (all output modules cabled to existing TSG wire wrap panels per part N) or a dual application mixture of regular and retrofit (shelf output module cabling split between TH5500 and TSG wire wrap panels on a custom basis). See section 7 for retrofit methods. Symmetricom TSG- 3800B wire wrap panels have 20 circuit connectors. TH5500 master and expansion shelf rear side output modules have 20 circuits. A single 20 circuit cable is used for the TH5500 to TSG relay rack run. Configuration of TH5500 output modules (DS1 or CC? Primary or secondary?) must align with existing NE timing assignments on the TSG wire wrap panel. Step 1 (interface cable): For each TH5500 master or expansion shelf output module that will be used for retrofit of an existing DCD system, connect one cable (ordered per section 3 part U if no TH5500 wire wrap panel or provided per section 3 part D, M or P if TH5500 wire wrap panel)) to the output module. Step 2 (cable to TSG rack): For each step 1 cable, provide one Telect ( XXX cable (-XXX denotes footage). Cable is 25 pair (20 active, 5 dead) 24 AWG shielded 1161A type (see BOTC-SEG section 9 and 14) with Amp female connector on one end (90 degree screw lock) and Amp male on other end (180 degree bail lock). Factory wiring in XXX cable rolls Tip/Ring pair 1-10 and pinout to counteract the pair 1-10 and roll with TSG-3800B wire wrap panels (panel connector to wire wrap pins for each group). Run female end cable from TH5500 output module interface cable to TSG wire wrap panel (male end of cable). Female connector has 3 insulated drain wire that must be grounded at TH5500 rack. If new TH5500 shelves and existing TSG wire wrap panels are in the same rack, XXX cabling will be a very short run within that rack. 13