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Nortel SONET AccessNode Manual

Nortel SONET AccessNode Manual

Site testing procedures
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NT4K00LA
323-3001-221
SONET Products
AccessNode
Site Testing Procedures
Issue 2.0 June 1999

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  • Page 1 NT4K00LA 323-3001-221 SONET Products AccessNode Site Testing Procedures Issue 2.0 June 1999...
  • Page 3 ACCESSNODE, NORTEL, and NORTEL NETWORKS are trademarks of Northern Telecom. VT100, VT320, and VT420 are trademarks of Compaq Computer Corporation. T3100SX is a trademark of Toshiba Corporation.
  • Page 5 Publication history June 1999 AN17 Standard Issue 2.0 release of the document. February 1999 AN16 Standard 1.0 release of the document. June 1998 AN15 Standard 01.01 release of this document. Added information on DMS Access feature. September 1997 AN14 Standard 01.01 release of this document. Added STS-1 tributaries information.
  • Page 6 iv Publication history AccessNode Vol 3B 323-3001-221 Issue 2.0...

  • Page 7: Table Of Contents

    Contents About this document Audience vii How to use this document vii Warnings and safety precautions vii References in this document viii Overview of site testing How to use this chapter 1-1 Radio-frequency emissions notice 1-4 Static electricity 1-4 Handling circuit packs 1-4 Storing and transporting circuit packs 1-5 Laser radiation 1-5 Equipment warning label 1-6...
  • Page 8 vi Contents How to use this chapter 4-1 Procedure 4-1 Enabling and disabling VTBM TIC VT1.5 alarms 4-2 Procedure 4-2 Connecting the network element to the system 4-6 Procedure 4-3 Setting up end-to-end synchronization 4-9 Procedure 4-4 Provisioning DS1s for an integrated configuration 4-12 Procedure 4-5 Provisioning a new host switch for an RFT 4-16 Procedure 4-6...

  • Page 9: About This Document

    Audience This document is for maintenance technicians and experienced installers from Nortel (Northern Telecom) or other telephone operating companies. How to use this document This document has the procedures for site testing an AccessNode. Do these procedures after each network element (NE) is commissioned.

  • Page 10: References In This Document

    viii About this document Samples of danger and caution warnings follow. DANGER Risk of personal injury A danger warning informs the reader of a risk of personal injury. CAUTION Risk of service interruption or equipment damage A caution warning informs the reader of a risk of service interruption or equipment damage.
  • Page 11 About this document ix Operations, Administration, and Provisioning, Volume 4A • Network Element User Interface Description, 323-3001-300 • OPC User Interface Description, 323-3001-301 • System Administration Procedures, 323-3001-302 • Data Administration Procedures, 323-3001-304 Operations, Administration, and Provisioning, Volume 4B • Provisioning and Operations Procedures, 323-3001-310 •...
  • Page 12 x About this document AccessNode Vol 3B 323-3001-221 Issue 2.0...

  • Page 13: Overview Of Site Testing

    Overview of site testing This chapter describes the steps required to perform optional site testing on a new system network element (NE) in a point-to-point, single-ended, or ring system. Site testing for DS1-fed systems is described in DS1 Feeder Testing Procedures, 323-3001-225, in this volume.
  • Page 14 1-2 Overview of site testing Commissioning and testing process overview Document Setting up your system • VTBM, 323-3001-230, in Commissioning and Testing , Volume 3A • DFA, 323-3001-235, in Commissioning and Testing , Volume 3A • Point to point, 323-3001-240, in Commissioning and Testing , Volume 3A •...
  • Page 15 Overview of site testing 1-3 Commissioning and testing process overview Document • Start end-to-end tests on the new (not-in-service) system Access Node system: OPC, FCOT and RFT These tests verify that the system is operational. Tests include: - received optical power - software downloading and backing up - digital continuity - protection switching...

  • Page 16: Radio-Frequency Emissions Notice

    1-4 Overview of site testing Radio-frequency emissions notice The following regulatory notice applies to AccessNode equipment: Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when operated in a commercial environment.

  • Page 17: Storing And Transporting Circuit Packs

    Overview of site testing 1-5 To avoid static electrical damage when handling circuit packs, follow these rules: • Do not remove circuit packs from their antistatic packages unless you are using antistatic protection, such as wearing an antistatic wrist strap. The wrist strap is attached to a long cord, that must terminate at a good ground source, so that static buildup is harmlessly discharged.

  • Page 18: Equipment Warning Label

    1-6 Overview of site testing Although Nortel S/DMS optical products have a Class I certification, hazardous exposure to laser radiation could occur when fibers that interconnect system components are disconnected or broken. Certain procedures carried out during testing require the handling of optical fibers without dust caps, and therefore increase the risk of exposure.

  • Page 19: Ds3 Tests, Sts-1 Tests, And Optical In-Bay Tests

    DS3 tests, STS-1 tests, and optical in-bay tests This chapter describes how to test DS3 or STS-1 and optical equipment at a system network element (NE) supporting DS3 or STS-1 interfaces or a mix of DS1, DS3, and STS-1 interfaces. You can test NEs that are not equipped with any DS1/VT or DS3 mappers or STS-1 interface cards by installing temporary DS1, DS3, STS-1 equipment and using the appropriate procedures.

  • Page 20: How To Use This Chapter

    2-2 DS3 tests, STS-1 tests, and optical in-bay tests How to use this chapter Refer to the document task list in Chapter 1. The document task list identifies the procedures that must be performed. Topic Verifying STS-1 tributary SONET test set performance page 2-6 Measuring optical receiver performance page 2-8...

  • Page 21: Group And Slot Association Matrix

    DS3 tests, STS-1 tests, and optical in-bay tests 2-3 Group and slot association matrix The group number you enter in a command string depends on the shelf type and function, the mapper type, and its slot location. Table 2-1 summarizes the group and slot associations for the different mappers and shelves.

  • Page 22: Group And Slot Associations For Ds3 Or Sts-1 Cards

    2-4 DS3 tests, STS-1 tests, and optical in-bay tests Group and slot associations for DS3 or STS-1 cards DS3 or STS-1 circuit packs are in the lower level of the common equipment shelf. DS3 or STS-1 input and output cards are in the upper level. Note: The following tables do not imply that all slots are available for your configuration.

  • Page 23: Sts-1 I/O Numbers

    DS3 tests, STS-1 tests, and optical in-bay tests 2-5 Table 2-3 lists the DS3 circuit pack groups for the TBM shelf functions. It also shows the association between mappers in the lower level of the shelf, and input/output cards in the upper level. Table 2-3 TBM DS3 mapper, group, and I/O numbers Shelf...

  • Page 24: Procedure

    2-6 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-1 Verifying STS-1 tributary SONET test set performance Use this procedure to verify STS-1 SONET test set performance. This verification is necessary to obtain reliable results when performing tests on a system equipped with STS-1 tributaries.
  • Page 25 DS3 tests, STS-1 tests, and optical in-bay tests 2-7 Procedure 2-1 (continued) Verifying STS-1 tributary SONET test set performance Step Action STS-1 receiver test set Set the receive settings to match the transmit settings. Connect the electrical patchcord between input and output. Verify test set Press Restart on the test set.

  • Page 26: Procedure

    2-8 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-2 Measuring optical receiver performance Use this procedure to verify OC-3/OC-12 receiver operation at minimum and maximum receiver input levels. This procedure verifies that the network element (NE) receives error-free digital signals when the OC-3/OC-12 input level is adjusted to a minimum value and then its maximum value.
  • Page 27 DS3 tests, STS-1 tests, and optical in-bay tests 2-9 Procedure 2-2 (continued) Measuring optical receiver performance DANGER Risk of injury or damage Read the warnings and precautions in Chapter 1 to minimize any risk to personnel and equipment. CAUTION Clean optical connectors Clean optical connectors to minimize signal attenuation and test errors caused by impurities.
  • Page 28 2-10 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-2 (continued) Measuring optical receiver performance Step Action Figure 2-1 DS3 or STS-1 test set connections to the temporary BNC I/O card PC-16202 DS3/STS-1 transmission test set FW-16202 Rx In Tx Out DSX-3/STS-1 cross-connect panel Legend:...
  • Page 29 DS3 tests, STS-1 tests, and optical in-bay tests 2-11 Procedure 2-2 (continued) Measuring optical receiver performance Step Action As shown following, connect the output of the VOA to the optical power meter. Then connect the input of the optical attenuator to the transmit (Out) connector of the G1 OC-3/OC-12 circuit pack.
  • Page 30 NT7E05AB/AC/AD OC-12 VTBM LR –29.5 dBm NT7E05BB/BC/BD OC-12 VTBM IR –28.0 dBm Note : The above values apply to Nortel-to-Nortel proprietary links. They also apply to Bellcore TR-NWT-000253 Midspan-meet links, with the following exceptions: NT7E05AB/AC/AD OC-12 VTBM LR –28.0 dBm...
  • Page 31 DS3 tests, STS-1 tests, and optical in-bay tests 2-13 Procedure 2-2 (continued) Measuring optical receiver performance Step Action As shown below, disconnect the optical test cord from the optical power meter and connect it to the G1 OC-3/OC-12 receive (In) connector. PC-10554 OC-3/OC-12 circuit pack...
  • Page 32 2-14 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-2 (continued) Measuring optical receiver performance Step Action Note 1: Use QTRIB to make sure the tributary being used for testing is connected to the optic under test. Note 2: To maintain the STS-1 connections, you must remain in the same NEUI screen where you entered the above CI commands.
  • Page 33 OC-12 VTBM LR 0.0 dBm NT7E05BB/BC/BD OC-12 VTBM IR 0.0 dBm Note : The above values apply to Nortel-to-Nortel proprietary links. They also apply to Bellcore TR-NWT-000253 Midspan-meet links, with the following exceptions: NT7E05AB/AC/AD OC-12 VTBM LR – 8.0 dBm...
  • Page 34 2-16 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-2 (continued) Measuring optical receiver performance Step Action Repeat steps 6 through 12. When repeating step 10, monitor the DS3/STS-1 test set for five (5) minutes instead of fifteen (15) minutes. Disconnect the optical patch cords from the G1 OC-3/OC-12 circuit pack.
  • Page 35 DS3 tests, STS-1 tests, and optical in-bay tests 2-17 Procedure 2-2 (continued) Measuring optical receiver performance Step Action Remove the DS3 or STS-1 lockout by entering: pr;dtlprot <type> ↵ lockout re <circuit pack group>↵ where <type> is ds3 or sts1 <circuit pack group>...

  • Page 36: Procedure

    2-18 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-3 Testing optical protection switching Use this procedure to verify the following protection switching features of the OC-3/OC-12 interface circuit packs: • manually switch to the standby circuit pack • force a switch to the standby circuit pack •...
  • Page 37 DS3 tests, STS-1 tests, and optical in-bay tests 2-19 Procedure 2-3 (continued) Testing optical protection switching Requirements (continued) You need the following equipment to perform this procedure: • a DS3/STS-1 transmission test set (HP 156 MTS (Cerjac), or equivalent) • two (2) coaxial cables with proper connectors (BNC-to-BNC) •...
  • Page 38 2-20 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-3 (continued) Testing optical protection switching Step Action CAUTION Risk of damage to the optical receiver For the NT7E02 OC-12 long-reach (LR) interface circuit pack, received optical power must not exceed the following safe level: −6.0 dBm.
  • Page 39 Testing optical protection switching Step Action CAUTION Risk of increased optical errors Received optical power should not exceed the overload levels for optical interfaces meeting Nortel-to-Nortel proprietary links: NT7E01 OC-3 LR: –10.0 dBm NT7E01 OC-3 IR: – 8.0 dBm NT7E02 OC-12 LR: –...
  • Page 40 2-22 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-3 (continued) Testing optical protection switching Step Action Using a second attenuated optical patch cord, repeat steps 1 through 4 for the G2 OC-3/OC-12 interface circuit pack. Setting up the DS3 transmission test set If you are Then go to using a temporary DS3/STS mapper or STS-1...
  • Page 41 DS3 tests, STS-1 tests, and optical in-bay tests 2-23 Procedure 2-3 (continued) Testing optical protection switching Step Action Set up STS-1 connections and establish DS3 or STS-1 traffic by entering: csci ↵ slat <p or s> where <p> is used if primary optics are being tested <s>...
  • Page 42 2-24 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-3 (continued) Testing optical protection switching Step Action Make sure G2 is the active circuit pack. If G1 is active, operate a manual switch, by entering: manual op g1 ↵ You are prompted to confirm the command.
  • Page 43 DS3 tests, STS-1 tests, and optical in-bay tests 2-25 Procedure 2-3 (continued) Testing optical protection switching Step Action PC-10579 OC-3/OC-12 circuit pack FW-10579 Active Fail Attenuated optical patch cord To verify that DS3 or STS-1 signal continuity is lost, press the Start/Stop button twice, to reset the error count to zero.
  • Page 44 2-26 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-3 (continued) Testing optical protection switching Step Action Testing automatic switching due to loss of optical signal To cause an automatic switch of the optical facility, remove the optical test cord from the transmit (Out) connector of G2 OC-3/OC-12, as shown in the figure in step 15.
  • Page 45 DS3 tests, STS-1 tests, and optical in-bay tests 2-27 Procedure 2-3 (continued) Testing optical protection switching Step Action Testing lockout from switching Operate a lockout on the OC-3/OC-12 interface circuit packs by entering: For OC-12 VTBM For other OC-3/OC-12 lockout op <work/prot> <unit> ↵ lockout op ↵...
  • Page 46 2-28 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-3 (continued) Testing optical protection switching Step Action Release the lockout on the OC-3/OC-12 interface circuit packs, allowing the automatic switch by entering: For OC-12 VTBM For other OC-3/OC-12 lockout re <work/prot> <unit> ↵ lockout re ↵...
  • Page 47 DS3 tests, STS-1 tests, and optical in-bay tests 2-29 Procedure 2-3 (continued) Testing optical protection switching Step Action Testing automatic switching due to degradation of the optical signal On the active OC-3/OC-12 circuit pack (G2), cause a degradation of the optical signal by increasing the attenuation on the NT7E47 optical test cord, until an automatic switch occurs.
  • Page 48 2-30 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-3 (continued) Testing optical protection switching Step Action If protection switching requirements are not met, replace the faulty OC-3/OC-12 interface circuit pack. Then go to this NE has a working DS3/STS mapper card or STS-1 step 43 interface card you are using a temporary DS3/STS mapper or STS-1...
  • Page 49 DS3 tests, STS-1 tests, and optical in-bay tests 2-31 Procedure 2-3 (continued) Testing optical protection switching Step Action Disconnect the DS3/STS-1 test set from the BNC I/O card. Remove the BNC I/O card. Use a small screwdriver to turn the locking screw to the left to unlock the I/O card.

  • Page 50: Procedure

    2-32 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-4 Testing DS3 or STS-1 protection switching Use this procedure to test protection switching of DS3 or STS-1 facilities on a circuit pack basis at one site. The test sequence demonstrates that you can: •...
  • Page 51 DS3 tests, STS-1 tests, and optical in-bay tests 2-33 Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching In this procedure, manual switching, automatic switching, and lockout from switching require that one working and one protection DS3/STS mapper or STS-1 interface card be provisioned. Forced switching and priority override require that two working and one protection DS3/STS mappers or STS-1 interface cards be provisioned.
  • Page 52 2-34 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Figure 2-3 DS3 or STS-1 test set connections to BNC I/O cards PC-16205 FW-16205 DS3/STS-1 DS3/STS-1 circuit pack test set DS3/STS mapper or STS-1 interface OC-3/...
  • Page 53 DS3 tests, STS-1 tests, and optical in-bay tests 2-35 Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Note: The screen shows whether a group is locked out, forced to protection, or automatically or manually switched to protection. A dot (.) in any field indicates no activity.
  • Page 54 2-36 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Enter: manual op g1 ↵ You are prompted to confirm the command. y ↵ The appropriate protection screen displays an asterisk (*) in the Manual field for the G1 circuit pack group.
  • Page 55 DS3 tests, STS-1 tests, and optical in-bay tests 2-37 Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action To verify that DS3 or STS-1 traffic is lost, press the Start/Stop button twice on the DS3/STS-1 test set, to reset the error count. The DS3/STS-1 test set shows a high error count.
  • Page 56 2-38 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Testing automatic switching due to failure of a DS3/STS mapper or STS-1 interface card Wearing antistatic wrist protection, to simulate a circuit pack failure, remove the first working DS3/STS mapper or STS-1 interface card from its backplane connector.
  • Page 57 DS3 tests, STS-1 tests, and optical in-bay tests 2-39 Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Override the automatic switch by forcing the DS3s/STS-1s on the second working circuit pack to protection by entering: forced op g2 ↵ You are prompted to confirm the command.
  • Page 58 2-40 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action To verify that DS3 or STS-1 continuity for DS3s/STS-1s on the G2 mapper is maintained (the DS3s/STS-1s that were forced onto the protection circuit pack have reverted to the G2 circuit pack), press the Single Bit Error Inject button three times.
  • Page 59 DS3 tests, STS-1 tests, and optical in-bay tests 2-41 Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Display the protection provisioning screen by entering: protprov ↵ The appropriate protection provisioning screen is displayed. Assign a high priority to the first circuit pack by entering: priority g1 high ↵...
  • Page 60 2-42 DS3 tests, STS-1 tests, and optical in-bay tests Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Press the Start/Stop button on the test set connected to the high priority unit (G1) twice to reset the error count to zero. The DS3/STS-1 test set indicates in process and displays 0 bit error.
  • Page 61 DS3 tests, STS-1 tests, and optical in-bay tests 2-43 Procedure 2-4 (continued) Testing DS3 or STS-1 protection switching Step Action Reassign a low priority to the first circuit pack by entering: protprov ↵ The appropriate protection provisioning screen is displayed. priority g1 low ↵...
  • Page 62 2-44 DS3 tests, STS-1 tests, and optical in-bay tests AccessNode Vol 3B 323-3001-221 Issue 2.0...

  • Page 63: Tributary And Optical Tests For Vtbm Rings

    Tributary and optical tests for VTBM rings Use this chapter to test DS1, DS3, and optical equipment at an AccessNode (system) network element (NE) Access Bandwidth Manager (ABM) shelf. These procedures cover local in-bay tests on equipment located at a single NE, and can form the basis for customer acceptance tests.

  • Page 64: Vtbm Rings

    3-2 Tributary and optical tests for VTBM rings VTBM rings The term VTBM (virtual tributary bandwidth management) ring is used to distinguish the bidirectional line-switched rings (BLSRs) which use OC-12 VTBM optical interface units. A VTBM ring, also called a 2-card BLSR ring, uses two NT7E05 OC-12 VTBM circuit packs in the primary transport slots of each NE.
  • Page 65 Tributary and optical tests for VTBM rings 3-3 • This tool removes the connections established by SLAT. The ENDSLAT connections are also removed if you QUIT from CSCI. ENDSLAT only removes connections which were setup after CSCI was entered. ENDSLAT also removes the dummy node map created by SLAT on a ring node.

  • Page 66: Procedure

    3-4 Tributary and optical tests for VTBM rings Procedure 3-1 Verifying OC-3 tributary SONET test set performance Use this procedure to verify OC-3 SONET test set performance. This verification is necessary so that reliable results can be obtained when carrying out tests on a system equipped with OC-3 tributaries.
  • Page 67 Tributary and optical tests for VTBM rings 3-5 Procedure 3-1 (continued) Verifying OC-3 tributary SONET test set performance Step Action Set the receive settings to match the transmit settings. Also set the Results parameter as follows: Results: Error counts DANGER Risk of personal injury Avoid direct exposure to laser beams or fiber.
  • Page 68 3-6 Tributary and optical tests for VTBM rings Procedure 3-1 (continued) Verifying OC-3 tributary SONET test set performance Step Action Verify the OC-3 circuit pack CAUTION Risk of damaging circuit pack Never connect an optical level higher than − 8.0 dBm for OC-3 IR −...

  • Page 69: Procedure

    Tributary and optical tests for VTBM rings 3-7 Procedure 3-2 Performing optical interface receiver sensitivity tests Use this procedure to make sure the optical receive interface operates satisfactorily for maximum and minimum incoming optical levels. Using DS1, DS3, or SONET test equipment, you can perform this procedure on OC-3, OC-12, and OC-12 VTBM circuit packs used as the optical feeder of a network element (NE).
  • Page 70 3-8 Tributary and optical tests for VTBM rings Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Tools and materials See Figure 3-1 on page 3-9 for the test setup. Make sure you have the following tools and materials: • one (1) optical power meter (for 1300 nm and 1550 nm optics) If testing OC-12 ring optics with DS1 or DS3 test equipment •...
  • Page 71 Tributary and optical tests for VTBM rings 3-9 Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Figure 3-1 OC-12 receiver sensitivity test setups PC-15431 Optical power meter Variable optical attenuator Single mode test cables FW-15431 VOA/ DS1 transmission mVOA test set DS1 test cables (daisy-chain 14 DS1s)
  • Page 72 3-10 Tributary and optical tests for VTBM rings Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Action Step Action CAUTION Risk of traffic loss Make sure the system being tested is not carrying live traffic. CAUTION Risk of damaging circuit packs Avoid touching any components on the printed circuit board.
  • Page 73 Tributary and optical tests for VTBM rings 3-11 Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Step Action Performing optical lockouts If equipped, lockout the NT7E05 OC-12 VTBM circuit packs to prevent optical protection switching during testing, by entering: pr;...
  • Page 74 3-12 Tributary and optical tests for VTBM rings Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Step Action Connecting loopbacks on the feeder optics DANGER Risk of eye injury Avoid direct exposure to laser beam or fiber. Invisible light that can blind is present. Cap all optical connectors that are not terminated.
  • Page 75 − 28.0 dBm NT7E05BB/BC/BD OC-12 VTBM IR Note : The above values for the OC-12 VTBM optical interface circuit packs are for a Nortel-to-Nortel proprietary link. For a link meeting the Bellcore Midspan-meet specification, the following values apply. − 28.0 dBm NT7E05AB/AC/AD OC-12 LR VTBM −...
  • Page 76 3-14 Tributary and optical tests for VTBM rings Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Step Action If you have a second VOA or mVOA unit, repeat steps 4 to 6 for the optical circuit pack G2, except set the optical level at − 20.0 dBm before connecting to the receive connector.
  • Page 77 Tributary and optical tests for VTBM rings 3-15 Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Step Action Testing using a SONET test set If you are testing with a SONET test set, connect the test set to the OC-3 tributary circuit pack as follows: a.
  • Page 78 • 323-3001-547, in Maintenance , Volume 5C. CAUTION Risk of increased optical errors Received optical power should not exceed the overload levels for optical interfaces meeting Nortel-to-Nortel proprietary links: − 10.0 dBm NT7E01 OC-3 LR: − 8.0 dBm NT7E01 OC-3 IR: −...
  • Page 79 NT7E05BB/BC/BD OC-12 VTBM IR 0.0 dBm Note: The values for the OC-12 VTBM optical interface circuit packs are for a link meeting the Nortel-to-Nortel proprietary link specification. For a Bellcore Midspan-meet specification, the following exceptions apply. − 8.0 dBm NT7E05AB/AC/AD OC-12 VTBM LR −...
  • Page 80 3-18 Tributary and optical tests for VTBM rings Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Step Action Testing OC-3 tributary receiver sensitivity If not already connected, connect the SONET test set to the OC-3 tributary circuit pack as follows: a.
  • Page 81 Tributary and optical tests for VTBM rings 3-19 Procedure 3-2 (continued) Performing optical interface receiver sensitivity tests Step Action If operated, release the lockout of the NT7E05 OC-12 VTBM circuit packs, by entering: pr; dp oc12 g1 ↵ The OC-12 Protection screen is displayed. lockout re w g1 ↵...

  • Page 82: Procedure

    3-20 Tributary and optical tests for VTBM rings Procedure 3-3 Performing DS1 switching tests Use this procedure to test DS1 protection switching capability (both manual and automatic) on a new network element (NE) before performing the end-to-end test. Requirements In this procedure, the user is doing loopbacks on optical channels and there are minor limitations on the system in these conditions.
  • Page 83 Tributary and optical tests for VTBM rings 3-21 Procedure 3-3 (continued) Performing DS1 switching tests Action Step Action Make sure all the optical circuit packs are in loopback. This means that the fiber connected to the receiver plug (Rx) comes from the transmitter (Tx) of the same circuit pack.
  • Page 84 3-22 Tributary and optical tests for VTBM rings Procedure 3-3 (continued) Performing DS1 switching tests Step Action Figure 3-2 Switching test setup PC-15426 Optical power meter Variable optical attenuator Single mode test cables FW-15426 To DSX-1 cross-connect DS1 transmission test set Installed DS1 cables TBM Shelf Note:...
  • Page 85 Tributary and optical tests for VTBM rings 3-23 Procedure 3-3 (continued) Performing DS1 switching tests Step Action Figure 3-3 DS1 switching test setup PC-1869 DS1 transmission test set To DS1 Out cards To DS1 In cards DSX-1 cross-connect panel Legend: = LED = Monitor —continued—...
  • Page 86 3-24 Tributary and optical tests for VTBM rings Procedure 3-3 (continued) Performing DS1 switching tests Step Action Make sure the active LEDs on both G1 and G2 are lit. Ring protection works on a channel basis and not on a circuit pack basis: channels 1 to 6 are for traffic and channels 7 to 12 are for protection.
  • Page 87 Tributary and optical tests for VTBM rings 3-25 Procedure 3-3 (continued) Performing DS1 switching tests Step Action Operate a forced switch on mapper Gx by entering: ↵ forced op <gx> ↵ where <gx> is the number of the working mapper (g1 to g12) DS1 traffic transfers to mapper P and the mapper P active LED is on.
  • Page 88 3-26 Tributary and optical tests for VTBM rings Procedure 3-3 (continued) Performing DS1 switching tests Step Action Release the manual switch by entering: ↵ manual re <gx> ↵ where <gx> is the number of the working mapper (g1 to g12) Traffic remains on Mapper P.

  • Page 89: Procedure

    Tributary and optical tests for VTBM rings 3-27 Procedure 3-4 Performing DS3 switching tests Use this procedure to test DS3 protection switching capability (both manual and automatic) on a new network element (NE) before performing the end-to-end test. Requirements In this procedure, the user is doing loopbacks on optical channels and there are minor limitations on the system in these conditions.
  • Page 90 3-28 Tributary and optical tests for VTBM rings Procedure 3-4 (continued) Performing DS3 switching tests Action Step Action Make sure all the optical circuit packs are in loopback, this means that the fiber connected to the receiver plug (Rx) comes from the transmitter (Tx) of the same circuit pack.
  • Page 91 Tributary and optical tests for VTBM rings 3-29 Procedure 3-4 (continued) Performing DS3 switching tests Figure 3-4 Switching test setup PC-15427 Optical power meter Variable optical attenuator Single mode test cables FW-15427 Transmission test set (Receiver) TBM shelf Transmission test set (Transmitter) cross-connect (if provided)
  • Page 92 3-30 Tributary and optical tests for VTBM rings Procedure 3-4 (continued) Performing DS3 switching tests Step Action Figure 3-5 DS3 switching test setup PC-15428 VT100 connected FW-15428 to User Interface Daisy chain ports 1, 2 and 3 of G1 DS3 ports transmitter Ring ADM shelf...
  • Page 93 Tributary and optical tests for VTBM rings 3-31 Procedure 3-4 (continued) Performing DS3 switching tests Step Action Make sure the optical channel G1 is active and the active LED is lit. Monitor the output of Gx circuit pack, port 3. Make sure the DS3 traffic continuity is maintained error free.
  • Page 94 3-32 Tributary and optical tests for VTBM rings Procedure 3-4 (continued) Performing DS3 switching tests Step Action Lockout switch Operate a lockout on mapper Gx by entering: ↵ lockout op <gx> ↵ where <gx> is the number of the working mapper (g1 to g4) DS3 traffic transfers from mapper P to mapper Gx and is running error free.
  • Page 95 Tributary and optical tests for VTBM rings 3-33 Procedure 3-4 (continued) Performing DS3 switching tests Step Action Release the forced switch by entering: ↵ forced re <gx> ↵ where <gx> is the number of the working mapper (g1 to g4) Traffic transfers immediately to mapper Gx and mapper Gx active LED is ON.
  • Page 96 3-34 Tributary and optical tests for VTBM rings AccessNode Vol 3B 323-3001-221 Issue 2.0...

  • Page 97: Preparing For System Integration

    Preparing for system integration This chapter has the final procedures required for commissioning and testing a network element (NE) before starting system tests. The NE must be stable before you integrate it with the rest of the system. Do not connect the system optical fibers to an NE until you successfully complete the tests in this document to ensure the stability of the NE.

  • Page 98: Procedure

    4-2 Preparing for system integration Procedure 4-1 Enabling and disabling VTBM TIC VT1.5 alarms Use this procedure to enable or disable VTBM VT1.5 facility alarms that are associated with the transport interface card (TIC) facility. The procedure also describes how to enable synchronous transport signal-1 (STS-1) and VT1.5 facility alarms for connections terminating at the TIC.
  • Page 99 Preparing for system integration 4-3 Procedure 4-1 (continued) Enabling and disabling VTBM TIC VT 1.5 alarms In the default map, change the STS-1 alarms as follows: If you have Then an integrated configuration STS-1 #1 is used; disable alarms for STS-1 #2 a universal configuration with STS-1 #2 is used;...
  • Page 100 4-4 Preparing for system integration Procedure 4-1 (continued) Enabling and disabling VTBM TIC VT 1.5 alarms Action Step Action Display the TIC Facility screen for the STS-1. This screen requires alarms to be provisioned: fa tic <sts#>↵ where <sts #> is the number of the STS-1 facility: 1 or 2.
  • Page 101 Preparing for system integration 4-5 Procedure 4-1 (continued) Enabling and disabling VTBM TIC VT1.5 alarms Step Action Return to the TIC Facility screen: quit ↵ The TIC Facility screen is displayed. —end— AccessNode Site Testing Procedures 323-3001-221 Issue 2.0...

  • Page 102: Procedure

    4-6 Preparing for system integration Procedure 4-2 Connecting the network element to the system Use this procedure to verify the connection between the user terminal and the NE through the local craft access panel (LCAP). Also use this procedure to connect the system optical fibers to the NE.
  • Page 103 Preparing for system integration 4-7 Procedure 4-2 (continued) Connecting the network element to the system Step Action To verify that the basic system is working properly, bring up the login screen at the VT100 terminal, by pressing the Break key. The command interpreter (CI) pre-login screen appears, with the following prompt: This verifies the presence of the NE software load.
  • Page 104 4-8 Preparing for system integration Procedure 4-2 (continued) Connecting the network element to the system Step Action At the systems bay, connect the optical pigtails to their respective transmit (Out) and receive (In) connectors on OC-3/OC-12 interface circuit packs G1 and G2, as shown.

  • Page 105: Setting Up End-To-End Synchronization

    Preparing for system integration 4-9 Procedure 4-3 Setting up end-to-end synchronization Use this procedure to set up the synchronization at the remote fiber terminal (RFT). The external synchronization interface (ESI) is installed at the fiber central office terminal (FCOT) where the building integrated timing supply (BITS) is located.
  • Page 106 4-10 Preparing for system integration Procedure 4-3 (continued) Setting up end-to-end synchronization Step Action Lock out the OC-3/OC-12 circuit pack so that optical protection switching does not occur when you set the synchronization options. Enter: pr;dtlprot <oc-n> ↵ where <oc-n> is the type of optical carrier: oc3 or oc12 The OC-3/OC-12 Protection screen appears lockout op ↵...
  • Page 107 Preparing for system integration 4-11 Procedure 4-3 (continued) Setting up end-to-end synchronization Step Action Remove the lockout on the OC-3/OC-12 circuit pack. Enter: quit ↵ pr;dtlprot <oc-n> ↵ where <oc-n> the type of optical carrier: oc3 or oc12 Enter: lockout re ↵ Work/Prot ↵...

  • Page 108: Procedure

    4-12 Preparing for system integration Procedure 4-4 Provisioning DS1s for an integrated configuration Use this procedure to perform final provisioning of DS1 facilities (also called DS1 ports) before connecting an integrated or combined system to an S/DMS SuperNode switch. Final DS1 provisioning is done so that integrated system provisioning and testing can begin.
  • Page 109 Preparing for system integration 4-13 Procedure 4-4 (continued) Provisioning DS1s for an integrated configuration Step Action The parameter values for integrated DS1 ports should be as follows: Parameter values Definition line coding: b8zs (for GR-303 DMS or GR-303 MVI links) ami (for TR-08 links) line build out depends on the distance to the switch:...
  • Page 110 4-14 Preparing for system integration Procedure 4-4 (continued) Provisioning DS1s for an integrated configuration Step Action Change the parameters as required. If you are provisioning Then do facility identifier step a line coding step b line build-out step c frame format step d alarm encoding step e...
  • Page 111 Preparing for system integration 4-15 Procedure 4-4 (continued) Provisioning DS1s for an integrated configuration Step Action d. Provision the framing format by entering: framefmt <format> ↵ where <format> is the framing format: extended superframe (for GR-303 DMS or GR-303 MVI) dlc (for TR-08 A link) superframe (for TR-08 B, C, and D links) e.

  • Page 112: Provisioning A New Host Switch For An Rft

    4-16 Preparing for system integration Procedure 4-5 Provisioning a new host switch for an RFT Use this procedure to add a new host switch to a specific remote fiber terminal (RFT). Two kinds of host switches are supported: GR-303 DMS hosts and GR-303 MVI hosts.
  • Page 113 Preparing for system integration 4-17 Procedure 4-5 (continued) Provisioning a new host switch for an RFT 2 From the DMS-100 host switch, the integrated digital terminal (IDT) must be busied (command BSY), off-lined (command OFFL), busied again, then returned to service (command RTS). Alternatively, both embedded operations channels on the IDT can be busied, then both returned to service.
  • Page 114 4-18 Preparing for system integration Procedure 4-5 (continued) Provisioning a new host switch for an RFT Action Step Action Log in to the OPC and open the Host Provisioning Manager tool (located under the Prov Admin toolset). The main window of the Host Provisioning Manager tool appears. The cursor is in the RFT field.
  • Page 115 Preparing for system integration 4-19 Procedure 4-5 (continued) Provisioning a new host switch for an RFT Step Action Tab to either the GR-303 DMS or GR-303 MVI button for the type of host interface you are adding, then press Ctrl_A (or keypad 0). The selected interface type is marked.

  • Page 116: Assigning New Connections

    4-20 Preparing for system integration Procedure 4-6 Assigning new connections Use this procedure to display end-to-end connections in the operations controller (OPC) span of control and to add a connection to the list. You can modify the list using the sort and filter commands in the List and View menus. A DS1 facility can be assigned a tandem, GR-303 digital multiplex switch (DMS), GR-303 multi-vendor interface (MVI), virtual line concentrating module (VLCM), or TR-08 service.
  • Page 117 Preparing for system integration 4-21 Procedure 4-6 (continued) Assigning new connections Action Step Action Open the Connection Manager tool located under the Network Admin toolset from the User Session Manager window. If you do not know how to do this, see OPC User Interface Description , 323-3001-301, in Operations, Administration, and Provisioning , Volume 4A.
  • Page 118 4-22 Preparing for system integration Procedure 4-6 (continued) Assigning new connections Step Action Select an End NE A from the list by pressing Space (or Keypad 0). Tab to the End NE Z: field. Display the Chooser menu by pressing Ctrl_ L / (or Keypad 3).
  • Page 119 Preparing for system integration 4-23 Procedure 4-6 (continued) Assigning new connections Step Action Displaying the Manage Facility Assignments window You can bring up the Manage Facility Assignments window two ways: If the If you are in the Then do the following connection is STS-managed Connection Tab to the Connection ID list.
  • Page 120 4-24 Preparing for system integration Procedure 4-6 (continued) Assigning new connections Step Action Move to the Assign as Tandem command, then press Space (or Keypad 0). The Assignment column shows Tandem for the selected Facility. If you want to Then make another assignment return to step 12 exit from the tool...
  • Page 121 Preparing for system integration 4-25 Procedure 4-6 (continued) Assigning new connections Step Action Select the OK button from this dialog to continue. The Manage Facility Assignments window appears. Note that the Assignment column on the Manage Facility Assignments window reflects the GR-303 DMS selection you have just made. If you now want to Then make another assignment...
  • Page 122 4-26 Preparing for system integration Procedure 4-6 (continued) Assigning new connections Step Action From the Chooser menu use the arrow keys to move to the IG number you need. Press Space (or Keypad 0) to select the IG number. The fields in the Assign as GR-303 MVI dialog are automatically filled in. Select the OK button to return to the Manage Facility Assignments screen.
  • Page 123 Preparing for system integration 4-27 Procedure 4-6 (continued) Assigning new connections Step Action Using the arrow keys, move to the Assign as TR-08 command, then press Space (or Keypad 0). The Assign as TR-08 dialog appears. Note that the cursor is at the System Number field. Use the Assign as TR-08 dialog when a DS1 is being assigned to TR-08 service.
  • Page 124 4-28 Preparing for system integration Procedure 4-6 (continued) Assigning new connections Step Action If you now want to Then make another assignment return to step 12 exit from the tool go to step 60 Assigning the DS1 as VLCM From the Manage Facility Assignments screen, you can change the End NE A or End NE Z fields.
  • Page 125 Preparing for system integration 4-29 Procedure 4-6 (continued) Assigning new connections Step Action Tab to the OK button, then press Ctrl_A (or Keypad 0). The DS1 in the facilities list on the main window changes to VLCM. If you want to Then go to make another assignment step 12...
  • Page 126 4-30 Preparing for system integration AccessNode Vol 3B 323-3001-221 Issue 2.0...
  • Page 127 Index Optical in-bay test Alarm DS3 2-1 enable and disable TIC STS-1 and STS-1 2-1 VT1.5 4-2 test protection switching 2-18 tests, basic SONET test set performance, Circuit pack verifying 3-4 handling 1-4 Optical test Connection Services Command Interface 3-2 in-bay ENDSLAT tool 3-3 QTRIB tool 3-3...
  • Page 128 5-2 Index STS-1 cross-connect panel 2-1 group and slot associations 2-2 interface card 2-2 optical in-bay test 2-1 STS-3c connection 3-3 PORT column 3-3 synchronous transport signal column 3-3 Synchronization end-to-end, setting up 4-9 System integration connecting NE to system 4-6 preparing for 4-1 provisioning DS1s for 4-12 VTBM 3-2...
  • Page 130 Northern Telecom reserves the right to make changes to equipment design or program components, as progress in engineering, manufacturing methods, or other circumstances may warrant. ACCESSNODE, NORTEL, and NORTEL NETWORKS are trademarks of Northern Telecom. VT100, VT320, and VT420 are trademarks of Compaq Computer Corporation.

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