Dynatel 965DSP / 3M Far-End-Device Setup

Transcription

1 Dynatel 965DSP / 3M Far-End-Device Setup For Line Qualification Testing ( Voiceband & Wideband Digital Services ) Welcome Dynatel TM 965DSP Subscriber Loop Analyzer S/N 9751YP w M Ver 5..4 USA Setup Help Dynatel TM 965DSP On Off On Off V ABC ma GHI JKL MNO DSL DEF PQRS TUV WXYZ Ins Del Model 1332 Far End Device db Auto Prepared By: Roger C. Valencia U.S. & International Technical Service Engineer 3M Test & Measurement Systems 3M Austin Center Austin, TX, USA - January 21 1

2 965 DSP Requirement for Wideband Auto Tests! Ver or higher Make sure the 965 DSP test set has the proper software version. If it does not, contact Repair Service to get it upgraded. 2

3 Pair Testing/Qualification for New Wideband Services Who does the Testing? How is the testing done? What are the Procedures? 3

4 Generic Procedures for Testing an to Support Wideband Services Type of Test Volts DC Ohms Capacitance Load Coils Conductor Continuity Insertion Loss Slope TDR Looking for Crossed Battery Insulation Resistance (failures) Pair Length - Are Tip & Ring length equal? Presence of Load Coils and Where Loop Resistance Tip/Ring Resistance Balance Resistance Difference between the two Circuit Loss on a single tone only Losses at Prescribed Stepped Tones Bridge Taps Overall Electrical Balance (Resistance and Capacitance) Opens, Bridge Taps and Loads 4

5 Manual Pair Testing to Support Wideband Services Using the Dynatel 965DSP only. (without or Smart Strap) Type of Test Volts DC Ohms Length (Capacitance) Load Coils Special Resistance Wideband Loss Slope Wideband Loss TDR Looking for Crossed Battery Insulation Resistance (failures) Pair Length - Are Tip & Ring equal? Presence of Load Coils and Where Loop Resistance and Tip/Ring Resistance Balance Circuit Loss on a Single Tone only Losses at Prescribed Stepped Tones Bridge Taps Opens, Bridge Taps and Loads 5

6 Automatic Pair Testing to Support Wideband Services Using the Dynatel 965DSP and or Smart Strap Type of Test Volts DC Ohms Length (Capacitance) Load Coils Special Resistance Wideband Loss Slope (Sweep) Wideband Loss Looking for Crossed Battery Insulation Failures Pair Length - Are Tip & Ring equal? Presence of Load Coils and Where Loop Resistance Tip/Ring Resistance Balance Resistance Difference between the two Circuit Loss on a Single Tone only Losses at Prescribed Step Tones Bridge Taps Over all Electrical Balance of pair (Capacitance & Resistance) 6

7 Wideband Auto Test Routines (With FED Only) time 2 min. Voltage Ohms (Insulation) Opens (Capacitance Length) Capacitance Balance Loop Resistance Load Coil and Location Loss Time 4 min. Voltage Ohms (Insulation) Opens (Capacitance Length) Capacitance Balance Loop Resistance Load Coil and Location Loss Slope (Step Tones) Resistance Balance 7

8 Tone & Loss Requirements Circuit Qualification Typical Loss Type Frequency Specification Inactive POTS 14 Hz >-8.5 dbm Rate ISDN 4K Hz >-34 dbm HDSL 196K Hz >-36 dbm Primary Rate ISDN & T1 772K Hz >-15 dbm ADSL Up stream 138K Hz >-38 dbm Down stream 12K Hz (1.2M Hz) >-32 dbm 8

9 3M Far End Device What does it do? Model 1332 Far End Device 965DSP 1. It can send an ID tone to identify a pair to be tested. To do this, press the the ON key twice during turn ON, the FED will transmit an ID tone through the pair. 2. It sends the appropriate single or steps tones (Voiceband and Wideband sweep frequencies) for circuit loss measurements as instructed by the 965DSP. 3. It serves as a remote switch to strap (connect to) or un-strap (disconnect from) Shield/Ground, the Tip(A) and Ring(B) conductors as instructed by the 965DSP for Loop Resistance and Resistance Balance measurements. 9

10 965DSP / Hookup [ VoiceBand & Wideband Line Qualification Test ] Near-end Far-end Ring [A] Tip [B] Model 1332 Far End Device Shield/Ground Dynatel 965DSP 3M FED 1

11 ON OFF Welcome Dynatel TM 965DSP Subscriber Loop Analyzer Setup On Off To turn unit ON S/N 9751YP w c M Ver 5..4 USA Help Auto To go to Auto Menu Autotest Setup with This screen OR This screen AUTO Auto Menu Active Pair POTS FED Setup Inactive Setup 24 AWG FED= ne Start ne FED Setup SmartStrap TM Accept AUTO RING GND TIP ne FED Setup SmartStrap TM To do FED Setup To highlight/select To accept option Auto Menu Active Pair Wideband Test POTS FED Setup Inactive Setup 22 AWG Start To highlight/select Inactive Setup Calibrated Cable Custom Cable Test To initiate Inactive Setup Service Gauge 22 AWG 24 AWG Inactive Setup Calibrated Cable Custom Cable Test Select To select type of cable () AUTO RING GND TIP Auto Menu Active Pair Wideband Test POTS Service Gauge 19 AWG 22 AWG Accept 9 1 To move to the Test Choice box 24 AWG Inactive Setup Calibrated Cable Custom Cable Test AUTO db Select To select Test 11 db db Accept Service Gauge 19 AWG 22 AWG Accept To move to the Gauge box Vdc ft 965DSP Select Accept FED Setup Inactive Setup Start 12 To select wire gauge To accept selections Double-check if selected options are correct To start Auto Test Test Results Screen 11

12 ON OFF Welcome Dynatel TM 965DSP Subscriber Loop Analyzer S/N 9751YP w c M Ver 5..4 USA This screen OR AUTO Auto Menu Active Pair POTS FED Setup Inactive Setup 24 AWG FED= ne Start 3 4 ne FED Setup SmartStrap TM Accept FED Setup SmartStrap TM To do FED Setup To highlight/select To accept option 5 ne Accept 965DSP Setup 1 2 On Off To turn unit ON Help Auto To go to Auto Menu This screen Autotest Setup Wideband Pair QualificationTesting AUTO RING GND TIP Auto Menu Active Pair Wideband Test T1 FED Setup Wideband Setup Custom Cable Test Choice Gauge 22 AWG 24 AWG Select Wideband Setup 24 AWG Start Service ISDN HDSL T1 E1 Accept To highlight/select Wideband Test 12 To initiate Wideband Setup Custom Cable Test Choice Gauge 22 AWG 24 AWG Select To select type of cable Custom Cable Test Choice Gauge 22 AWG 24 AWG Select Wideband Setup Service HDSL T1 E1 ADSL Accept Wideband Setup Service HDSL T1 E1 ADSL Accept 9 1 To move to the Test Choice box Custom Cable Test Choice Gauge 22 AWG 24 AWG AUTO RING GND TIP Select To select test Wideband Setup Auto Menu Active Pair Wideband Test ADSL FED Setup Wideband Setup Service HDSL T1 E1 ADSL 11 Accept To move to the Gauge box 24 AWG Start To select wire gauge To move to the Service box To select type of service To accept selections To start Wideband Auto Test 12

13 VoiceBand Or Wideband Line Qualification Test Procedure Dynatel 965DSP Near-End Far-End Model 1332 Ring [A] Tip [B] ID Tone Shield/Ground 1. Connect the to the pair under test at the subscriber end, as shown above. If the pair under test has not been previously identified, proceed to the next step. If the pair under test has been previously identified, proceed to step # 4. On 2. Press the ON/Off button twice Off to activate the Pair ID tone. The FED will then send ID tone to the other end of the cable. 3. At the test set end, trace the ID tone on the pair using the 965DSP db Loss function or an ID tone Probe/Amplifier. 4. Once the pair is identified, press the AUTO key Auto to go to the Auto Menu screen. 5. On the Auto Menu screen, select the type of test to be performed which requires the use of a. 13

14 Wideband Auto Test Results Pass/Fail Numeric Value Transmission te: Press to store Test Results Graphics View of Slope 14

15 Auto Test Screen Icons Voltage Insulation Ohms Opens Length Load Coil Detect/Distance Loop Resistance Resistance Balance Capacitance Balance Loss/Slope 15

16 Wideband Printed Auto Test Results ADSL HDSL 16

17 Test [without FED] Test Pass/Fail Vdc Ohms Opens Load Coil Test [with FED] Test Pass/Fail Vdc Ohms Opens Voiceband Sweep Single Tone Loss Loop Resistance Load Coil 17

18 Active Pair Test [no FED required] Test Vdc Loop Current Loss ise Power Influence Pass/Fail Wideband Test [FED required] Test Pass/Fail Vdc Ohms Opens Capacitance Balance Sweep Loss Single Tone Loss Loop Resistance Resistance Balance Load Coil 18

19 Service Type POTS Inactive & Wideband Loss Test Frequencies Single Freq. (khz) 14 (Hz) Sweep Freq. (khz) 44, 84, 14, 124, 144, 164, 184, 24, 284, 34 (Hz) 56 kb , 32, 4, 48, kb 32 2, 28, 32, 4, 48, 82 * te: Tests for these service types are not available on some of the older versions of the 965DSP. Upgrades are available thru 3M Telecom Repair Service, Call ISDN HDSL T1* E1* ADSL , 28, 32, 4, 48, 6, 7, 82 2, 3, 5, 7, 9, 11, 13, 196, 4* 2, 4, 5, 7, 772, 124 2, 4, 5, 7, 772, 124 2, 3, 5, 69, 9, 11, 138, 276, 4, 6, 8, 1, 11 19

20 Autotest Editable Threshold Parameters Insulation Loss Slope Loop Resistance Active Pair Loop Current Loss ise Power Influence Balance Wideband Insulation Capacitance Length Capacitance Balance Loss Loop Resistance Resistance Balance 2