IRT Eurocard. Types DDA-3312 ASI / SDI Path Protection and Distribution Amplifier & ZDA-4311RH Handshake changeover assembly

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1 I R T Electronics Pty Ltd A.B.N. 000 Hotham Parade, ARTARMON N.S.W. 0 AUSTRALIA National: Phone: (0) 99 Fax: (0) 99 9 International: sales@irtelectronics.com Web: IRT Eurocard Types DDA- ASI / SDI Path Protection and Distribution Amplifier & ZDA-RH Handshake changeover assembly Designed and manufactured in Australia IRT can be found on the Internet at: -dda.ib.rev.doc Page of /0/00

2 IRT Eurocard Types DDA- ASI / SDI Path Protection and Distribution Amplifier & ZDA-RH Handshake changeover assembly Instruction Book Section Table of Contents Page General Description Functional diagrams DDA- Technical Specifications ZDA-RH Technical Specifications Description of Operation Handshake Operation Pre-installation 9 Operational safety 9 Installation 0 Installation in frame 0 Front & rear panel diagrams Maintenance & storage Warranty & service Equipment return Drawing index This instruction book applies to units later than serial number dda.ib.rev.doc Page of /0/00

3 IRT Eurocard Type DDA- ASI / SDI Path Protection and Distribution Amplifier & ZDA-RH Handshake changeover assembly General Description The DDA- is a data distribution amplifier that may be used with either DVB ASI or SMPTE SDI 0 Mb/s signals. Four outputs are provided at the rear of the module and for monitoring purposes there is one on the front panel. On power failure the input signal is switched by a relay to Output. In SDI mode a loss of input or a missing EAV ( End of Active Video) is used to indicate failure. In ASI mode a loss of input or absence of Packet Sync (in either or 0 byte packets ) is used. Indicators are provided on the front panel for: SDI signal detected ASI signal detected ASI signal inverted Data loss Module in service Module in standby The alarm signals are also available on the rear of the module as contact closures to ground. The DDA- incorporates a protection facility for switching two outputs to signals from a companion DDA- when a fault is detected. For this configuration, a special double width rear assembly (type ZDA-RH) is required to link the signal and logic sections of two modules. Changeover-inhibit and changeover-request switches are provided on the front panel for use where modules are so linked. A manual changeover request may be made either locally by using the front panel switch or remotely via a connection on the rear assembly. Applications: Stand alone cable equaliser and distribution amplifier. Paired for redundant path protection switching. Standard features: SDI and DVB-ASI compliant. Adaptive cable input equalisation. Data regeneration. Polarity alarm and inversion capability for ASI. Protection switching capability. Power fail signal bypass. External alarms. IRT Eurocard construction compatible with other IRT Eurocard modules and frames. Dual power supply operation. Accessories available: ZDA-RH * Double rear assembly for handshake: Connects two adjacent DDA- s for automatic changeover of two of the four outputs in the event of a fault being detected, plus passthrough of the remaining two on both cards. NOTE: * ZDA-RH supersedes earlier ZDA-RH by being able to be mounted within a 000 series frame. -dda.ib.rev.doc Page of /0/00

4 Functional diagrams Block diagram DDA-- Signal path INPUT EQUALISER Clock & Data Recovery Reclocking ASI Invert Bypass Relay OUTPUT OUTPUT ASI polarity detect Data fail detect Main/Sby logic Alarms & remote OUTPUT MON. OUTPUT Handshake diagram x DDA- RLA RLA INPUT L OUTPUTS DDA SIGNAL PROCESSING O/P L O/P L RL RL O/P AUX O/P () O/P R DDA SIGNAL PROCESSING O/P R INPUT R RLA RLA -dda.ib.rev.doc Page of /0/00

5 ASI/SDI input: DDA- Technical Specifications Number. Impedance Ω Return loss > db MHz to MHz. Equalisation Automatic, better than 00 metres at 0 Mb/s for Belden cable. ASI/SDI outputs: Number outputs located on rear assembly and one located on front panel. With handshaking - switched, and unswitched. Type Reclocked. Level 00 mv ±0% into Ω. Return loss > db MHz to MHz. DC offset Nil. Impedance Ω source terminated. Performance: Rise time Residual jitter <.0 ns, (00 ns typically). <00 ns, (0 ns typically) at 0 Mb/s. Controls & alarms: General alarm. Relay contact closure to Gnd on fail. Connectors: Signal fail. Changeover request. ASI/SDI: BNC. Alarm: Krone LSA plus. Relay contact closure to Gnd on fail. Contact closure to Gnd. Other: Power requirements Vac CT (-0-) or ± Vdc. <. VA Temperature range 0-0 C ambient. Mechanical Suitable for mounting in IRT 9" Eurocard rack chassis with input output connections on the rear panel. Finish: Front panel Grey background, silk-screened black lettering & red IRT logo. Rear assembly Detachable silk-screened PCB with direct mount connectors to Eurocard and external signals. Dimensions mm x U x 0 mm IRT Eurocard. Standard accessories DDA- rear connector assembly. Optional accessories Instruction manual. ZDA-RH * double rear assembly, for handshake connection of two DDA-'s. NOTE: * ZDA-RH supersedes earlier ZDA-RH by being able to be mounted within a 000 series frame. Due to our policy of continuing development, these specifications are subject to change without notice. -dda.ib.rev.doc Page of /0/00

6 ZDA-RH Technical Specifications Controls & alarms: Input: External changeover request Outputs: Power Fail Alarm General Alarm Main Tally Connectors: for both DDA-s A ground applied to this input will emulate the operation of the front panel switch Change Request. Contact closure to ground if power has failed. Contact closure to ground if Data Loss is detected Transistor switch to ground to indicate which module is acting as the Main ( In Service ) path. ASI/SDI: BNC. Alarm: Krone LSA plus. Tally: Krone LSA plus. -dda.ib.rev.doc Page of /0/00

7 See schematic diagrams at rear of this manual. Input: Description of Operation The signal applied to the Input BNC connector may be either an SDI or ASI at 0 Mb/s. With no power applied to the module RLA switches the input signal directly to the O/P connector. Active path: When power is applied the input signal is passed to U, which is a cable equalising circuit. The purpose of this equaliser is to compensate for the losses in the input cable by restoring both the level and the shape digital signal. After this the signal is reclocked by U. If the Invert switch (SW) on the front panel is operated U will invert the signal. As SDI is not polarity sensitive this function is only useful for ASI signals which have the wrong polarity. RV is a factory-preset adjustment for best eye pattern. U, U and U are dual line driver circuits for the line outputs on the rear and the monitoring output on the front panel. The reclocked signal is converted to 0 bit parallel format by U. This signal is used by U. This programmable logic array carries out the signal identification, monitors for signal loss and handles the switching and alarm logic. RL is the power fail alarm relay. Its contact appears on SK- on the rear connector assembly and is connected to ground when there is a loss of power. RL is the general alarm relay. Its contact appears on SK- on the rear connector assembly and is connected to ground when there is either a loss of input signal, ie an absence of end of active video (EAV) for SDI, or an absence of Packet Sync for ASI. When power is applied to the unit, U generates a power on reset signal. This signal causes the processing circuit to examine its current status and connections and restore operation to its state prior to power failure. If the DDA is connected for stand-alone operation all alarms will be reset and normal operation will resume. If the signal is absent or data is outside the prescribed limits outlined above then the general alarm will be activated after the normal detection period has elapsed from the P.O.R. signal being initiated. For operation in handshake mode see Handshake operation description. -dda.ib.rev.doc Page of /0/00

8 Handshake Operation: See schematic diagram 09 sheet at rear of this manual. Purpose: Handshake interconnection is required when two DDA- modules are to be operated in : protection switching mode to provide a continuous signal output in the event of failure of one of two signal sources (see the functional block diagram). Handshaking is carried out using the ZDA-RH dual width rear connector assembly. Relays on the ZDA-RH rear connector assembly are used to switch the signals and they are controlled by logic from the two DDA-s. Operation: Designate the two DDA-s as Left and Right. Assume that the Inhibit/Allow switch on each unit is in the Allow position. Assume that the input signal to the Left unit was applied before the signal to the Right unit. The Left unit will show In Service and will be the active amplifier. The Right unit will show Standby. TBL- will also be switched to ground to remotely indicate that the Left unit is the In Service module. If the signal to the Right unit now fails no switching will occur, but the Data Loss light on the Right Unit will show. If instead, the signal to the Left Unit fails and that of the Right unit does not, then the Right Unit will become In Service and the Left unit will become Standby. The Left Unit Data Loss led will show. TBL- will now go open circuit and TBR- will now be switched to ground to remotely indicate that the Right unit is now the In Service module. Upon return of signal to the Left Unit its Data Loss led will extinguish, but the Right Unit will remain the In Service unit. If both units have valid input signals then operation of the Change Request button on the Standby module will cause it to become the In Service module ( provided that its Allow/Inhibit switch is in the Allow position. Upon power failure and subsequent return of power the unit that was In Service will still be In Service. A power failure on one module is treated as a loss of signal. Inputs & outputs: It is important to note that in this mode only two outputs of the DDA- are switched. The two unswitched outputs of each DDA- are also provided on the ZDA-RH. Logic connections: All required logic connections are made by tracks on the double width PCB. Automatic operation is immediately initiated when two modules are plugged into this type of rear assembly. No external connections are required, but external alarm connections are available from each module for use if desired. Additionally, each module has a connection for an external Make Main ( In Service ) control for remote DDA selection. External change requests are made by grounding TBL- or TBR- as appropriate. A Main Tally switch to ground occurs on either TBL- or TBR- to indicate which module is the In Service module. -dda.ib.rev.doc Page of /0/00

9 Pre-installation: Handling: This equipment may contain or be connected to static sensitive devices and proper static free handling precautions should be observed. Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures should be followed when inserting or removing cards from these bags. Power: AC mains supply: DC supply: Ensure that operating voltage of unit and local supply voltage match and that correct rating fuse is installed for local supply. Ensure that the correct polarity is observed and that DC supply voltage is maintained within the operating range specified. Earthing: The earth path is dependent on the type of frame selected. In every case particular care should be taken to ensure that the frame is connected to earth for safety reasons. See frame manual for details. Signal earth: For safety reasons a connection is made between signal earth and chassis earth. No attempt should be made to break this connection. Operational Safety: WARNING Operation of electronic equipment involves the use of voltages and currents that may be dangerous to human life. Note that under certain conditions dangerous potentials may exist in some circuits when power controls are in the OFF position. Maintenance personnel should observe all safety regulations. Do not make any adjustments inside equipment with power ON unless proper precautions are observed. All internal adjustments should only be made by suitably qualified personnel. All operational adjustments are available externally without the need for removing covers or use of extender cards. -dda.ib.rev.doc Page 9 of /0/00

10 Installation Installation in frame or chassis: See details in separate manual for selected frame type. Video connections: SDI or ASI signal input to input BNC connector on rear connector assembly. Set signal type switch on front panel for current input signal, SDI or ASI or SDI/ASI. BNC outputs are also provided on the rear assembly. Input is automatically bypassed to Output in event of a power failure, therefore use Output as main (most important) output. ASI signals are phase sensitive. If a signal inversion has occurred somewhere earlier in the system, switch invert signal switch on front panel to correct the data stream. Alarm and external changeover connections: A Krone type connector is provided on the rear panel of the module providing the following: Pin Power Fail - connection to ground indicates that power to the module has failed. Alarm - connection to ground indicates loss of signal alarm. External changeover request - connection to ground will make this module In Service in handshake mode. Ground. Handshaking Operation: Install two DDA- s side by side in a RU frame. Use ZDA-RH double width rear connector assembly in place of the standard rear assemblies. Units are designated as L and R on the rear assembly. Two BNC inputs are provided, Left and Right. Set module priority by pressing the front panel change request button on your chosen Main feed ensuring correct LED lights on each unit In Service and Standby. In Service feed is now connected to O/P and to AUX O/P () on the ZDA-RH rear connector assembly. Both In Service and Standby feed outputs & come out on their own BNC connectors. Note that these two outputs are unswitched and are therefore unsuitable for main program feeds. They are, however, suitable for monitoring of the modules performance. As with the standard rear connector assembly, alarm and external change over functions appear on connector TBL and TBR, each controlling its relevant module. Pin designations are the same as the standard assembly and are also printed on the ZDA-RH assembly. To remotely monitor which module is acting as the Main ( In Service ) module, pin of either TBL or TBR switches to ground to act as a Tally. -dda.ib.rev.doc Page 0 of /0/00

11 Front & rear panel diagrams The following front panel and rear assembly drawings are not to scale and are intended to show relative positions of connectors, indicators and controls only. DDA- O/P ZDA-RH AUX O/P O/P JR NORMAL O/P RL J INVERT ASI ASI/SDI SDI O/P O/P R JR O/P R RL O/P L JL MON. JL O/P L CHANGE SDI DATA LOSS IN SERVICE INHIBIT ALLOW REQUEST ASI INVERTED STANDBY INPUT BYPASS ON POWER FAIL SK RIGHT PWR FAIL GEN ALARM CHANGE REQ GND - GND EDH IN MAIN TALLY N/C - TBR TBR JR INPUT R OUTPUT P J JL INPUT L TB. POWER FAIL. GEN ALARM. CHANGE REQ. GROUND TBL TBL LEFT PWR FAIL GEN ALARM CHANGE REQ - GND - GND - EDH IN - MAIN TALLY - N/C N0 -dda.ib.rev.doc Page of /0/00

12 Maintenance & storage Maintenance: No regular maintenance is required. Care however should be taken to ensure that all connectors are kept clean and free from contamination of any kind. This is especially important in fibre optic equipment where cleanliness of optical connections is critical to performance. Storage: If the equipment is not to be used for an extended period, it is recommended the whole unit be placed in a sealed plastic bag to prevent dust contamination. In areas of high humidity a suitably sized bag of silica gel should be included to deter corrosion. Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures should be followed when inserting or removing cards from these bags. Warranty & service Equipment is covered by a limited warranty period of three years from date of first delivery unless contrary conditions apply under a particular contract of supply. For situations when No Fault Found for repairs, a minimum charge of hour s labour, at IRT s current labour charge rate, will apply, whether the equipment is within the warranty period or not. Equipment warranty is limited to faults attributable to defects in original design or manufacture. Warranty on components shall be extended by IRT only to the extent obtainable from the component supplier. Equipment return: Before arranging service, ensure that the fault is in the unit to be serviced and not in associated equipment. If possible, confirm this by substitution. Before returning equipment contact should be made with IRT or your local agent to determine whether the equipment can be serviced in the field or should be returned for repair. The equipment should be properly packed for return observing antistatic procedures. The following information should accompany the unit to be returned:. A fault report should be included indicating the nature of the fault. The operating conditions under which the fault initially occurred.. Any additional information, which may be of assistance in fault location and remedy.. A contact name and telephone and fax numbers.. Details of payment method for items not covered by warranty.. Full return address.. For situations when No Fault Found for repairs, a minimum charge of hour s labour will apply, whether the equipment is within the warranty period or not. Contact IRT for current hourly rate. Please note that all freight charges are the responsibility of the customer. The equipment should be returned to the agent who originally supplied the equipment or, where this is not possible, to IRT direct as follows. Equipment Service IRT Electronics Pty Ltd Hotham Parade ARTARMON N.S.W. 0 AUSTRALIA Phone: 99 Fax: service@irtelectronics.com -dda.ib.rev.doc Page of /0/00

13 Drawing index Drawing # Sheet # Description 09 DDA- Reclocking Serial DA schematic 09 DDA- I/O and reclocking circuit schematic 09 DDA- logic schematic 09 DDA- power supply schematic 09 DDA- handshake arrangement -dda.ib.rev.doc Page of /0/00

14 COPYRIGHT DO NOT COPY NOR DISCLOSE TO ANY THIRD PARTY WITHOUT WRITTEN CONSENT DRAWN ENG.APR. CHECKED Revision: Date: -Jun-00 SIZE A Title DDA- SDI/ASI Reclocking D.A. SCALE Sheet N.T.S. of IRT Electronics Pty. Ltd. ARTARMON NSW AUSTRALIA 0 D P I/O and Reclocking Circuit Mon. Out Output Output CY IN- Output CY IN+ Output INV CNTRL INPUT 09s.sch Logic Circuit INV CNTRL CY IN+ CY IN- TALLY IN STATUS PRESENT SEL MAIN INVERT ASI SDI INHIBIT CHANGE EN RL EDH C/O MAIN TALLY 09s.sch Power Supply Circuit RLA+ RLA- AC- AC- AC- AC- 09s.sch 0 9 D BAS RLA GY-P R 9 0 A B A B A B A B A B A B A B A B 9A 9B 0A 0B A B A B A B A B A B A B A B A B 9A 9B 0A 0B A B A B A B A B A B A B A B A B 9A 9B 0A 0B A B A B Q BC D BAS R K R K R K R9 R 00K K SW C 0nF R9 K D BZXCV C 0nF R R K K R 0R + R 0R + SW SW PB R K C 0nF C0 0nF R9 K C9 0nF INVERT ASI AUTO SDI INHIBIT CHANGE R K C 0nF SK DIN A B A B A B A B A B A B A B A B 9A 9B 0A 0B A B A B A B A B A B A B A B A B 9A 9B 0A 0B A B A B A B A B A B A B A B A B 9A 9B 0A 0B A B A B J J J J TB TB SK J O/P O/P O/P O/P INPUT SK optional power in (used when fitted to FRU-00 frame) R K SK Monitor O/P D BAV99 C R uf K R R K 0R R + K D BAV99 D RLA BAS V0 RLB 0 RLB 0 + RLA V0 R K C 0nF BAS R0 K Q BC D BAS 0R Q BSS DINRA I I I RR I I RR D BAS PCB 0 Drawing No. 09

15 CY IN- CY IN+ U VEE COPYRIGHT DO NOT COPY NOR DISCLOSE TO ANY THIRD PARTY WITHOUT WRITTEN CONSENT DRAWN CHECKED ENG. APP. Revision: Date: IN- IN+ CLC00AJE U VEE IN- IN+ CLC00AJE -Jun-00 Q Q Q0 Q0 Q Q Q0 Q0 C u C u C u C u SIZE A Title DDA- I/O and reclocking circuit SCALE Sheet Drawing No. 09 N.T.S. of IRT Electronics Pty. Ltd. ARTARMON NSW AUSTRALIA 0 R R R 0R C0 u C 00nF U Q0 Q0 Q Q CLC00AJE IN+ IN- VEE R 00R R 00R C u C 00pF C0 0nF C9 0nF C 00pF C 0nF C 00nF L C 00nF C 0uF L 0nH U Vcc Vcc OEM Vcc CD AEC+ AEC- CLC0AJE DO DO MUTE Vee Vee DI DI 0 9 R 00R R R R 0R C 00nF Va Va C u L 0nH C9 0nF C 0nF C0 00pF C9 00pF C 0nF C u Output Output C 0nF Output Output C 0uF Mon. Out R 00R INPUT D BAS R R R R R K Va C 0nF 9 DDI DDI CD MUTE CARS SER C 0nF ACQ/WR AUTO VEE VEE C 0nF C0 0nF C u L 0nH C C9 u C 00pF R9 00nF 0R C 0nF R9 R CLC0A U 0 9 VEE VEE VC FD VC SDO SDO SCO SCO R0 R R R RTN RD RD0 0 D BAS R K Va R R R K R K R 0R U NC R0 0R C 0nF RD0 = 0 RD = RV 0R = R Da Db Q Q SEL VEE MC00ELD INV CNTRL R 0R R0 00R R 00R R 00R R 00R R 00R C pf R R R R L 0nH C 0nF R R R R

16 DRAWN CHECKED ENG. APP. Revision: Date: -Jun-00 SIZE A Title DDA- LOGIC SCALE Sheet Drawing No. 09 N.T.S. of IRT Electronics Pty. Ltd. ARTARMON NSW AUSTRALIA 0 U0 P 0 9 ncasc GND EPC DATA DCLK OE ncs DATA0 DCLK nce TDI 9 0 GND 9 0 MSEL0 MSEL R K R K R K R K R K nconfig GND CLK GND DATA DATA DATA DATA DATA DATA DATA DEV_CLRn CLK DEV_OE GND nrs nws 0 CS 9 ncs TCK CONF_DONE nco 0 9 U EPF0K0LC R9 K TDO CLKUSR RDYnBSY INIT_DONE 9 0 GND 0 9 TMS TRST nstatus C9 0nF C0 0nF R K C 0nF C 0nF C 0nF C 0nF C 0nF C 0nF C 0nF U VOUT GND PFI MAX0 VBAT RST MR PFO R90 00K R 00R R0 00R 0 RF GND RDY GND Q Q Q BISTEN A/B INA+ INB- INA- REFCLK Q SO CKR 9 N Q Q Q Q Q Q Q0 INB+ U CYB9 MODE XTAL MHz TP TP GND 0 SC/D 9 CY IN+ CY IN- INVERT SDI ASI TALLY IN STATUS PRESENT EN RL MAIN TALLY C/O SEL MAIN INHIBIT CHANGE EDH INV CNTRL C 0nF C 0nF C 0nF C 0nF LD R9 0 LD R9 0 LD R0 0 LD R 0 LD R 0 LD R 0 C0 u C u C 0uF C u ASI SDI LOSS (Z) INVERT IN SERVICE SBY COPYRIGHT DO NOT COPY NOR DISCLOSE TO ANY THIRD PARTY WITHOUT WRITTEN CONSENT

17 L COPYRIGHT DO NOT COPY NOR DISCLOSE TO ANY THIRD PARTY WITHOUT WRITTEN CONSENT DRAWN CHECKED ENG. APP. Revision: Date: uh C 0uF TP -Jun-00 SIZE A Title DDA- Power Supply SCALE Sheet Drawing No. 09 N.T.S. of IRT Electronics Pty. Ltd. ARTARMON NSW AUSTRALIA 0 U I O + FL (Z) FL FL C C C 0nF R 0R C 0uF L0 uh C 0uF F R F R C 0nF C9 0uF AC- DB ~ + C 00uF C 00uF CONV PBBA0-D VIN+ +V AC- ~ B-S - C 0nF L uh VIN- -V AC- F R DB ~ + AC- FL F R ~ B-S - RLA+ RLA- ZD.V

18 /0/00 R? DRAWN CHECKED ENG. APP. Revision: Date: COPYRIGHT -Jun-00 POWER FAIL GEN ALARM CHANGE REQUEST GROUND GROUND EDH IN MAIN TALLY CLOCK IIC status SIZE A Title a b a DDA- ARTARMON NSW AUSTRALIA 0 of UNIT L UNIT R SKL SKR RL D 9 b b D? main_tally D main_tally U/ RL U/ present U/9 b b present + R b b R? + D9L a + + S RL RL R main_select R R? Q main_select U/0 D9R a R? D R? TBR PBR R R9 status U/ R a a R? R R a,b RL a,b I J AUX TBL a b a POWER FAIL GEN ALARM CHANGE REQUEST GROUND a,b 0 RL a,b b b a GROUND EDH IN MAIN TALLY CLOCK IIC I R J OUTPUT TBL a,b IL JL JR IR a,b b b a a,b IL JL JR IR a,b INPUT INPUT JL JR a,b IL IR a,b DO NOT COPY NOR DISCLOSE TO ANY THIRD PARTY WITHOUT WRITTEN CONSENT TAKEN FROM 0 SH RL RR HANDSHAKE ARRANGEMENT SCALE Sheet Drawing No. 09 N.T.S. IRT Electronics Pty. Ltd.

IRT Eurocard. Type AG-738. Stereo Audio Phase / Failure Detector

IRT Eurocard. Type AG-738. Stereo Audio Phase / Failure Detector I R T Electronics Pty Ltd A.B.N. 000 7 6 Hotham Parade, ARTARMON N.S.W. 06 AUSTRALIA National: Phone: (0) 7 Fax: (0) 7 International: +6 7 +6 7 Email: sales@irtelectronics.com Web: www.irtelectronics.com