Nortel Modular Ics 6.1 Installer Guide
Have a look at the manual Nortel Modular Ics 6.1 Installer Guide online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 211 Nortel manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
Provisioning BRI and PRI lines / 551 P0603534 02Modular ICS 6.1 Installer Guide Deprovisioning a lineInstaller password required Deprovisioning all of the lines on a DTI does not disable the cartridge. Disabling a PRI ChannelInstaller password required PRI channels can be disabled. However, there is no association between a line number and a b-channel. Disabling a b-channel can be done when you have fractional PRI. See Working with fractional PRI on page 567.
552 / Tests Modular ICS 6.1 Installer GuideP0603534 02 Tests Norstar allows you to run tests which verify the integrity of the installation wiring for the telephones. In addition, you can evaluate the transmission quality of a BRI loop through your service provider using a loopback test to evaluate different aspects and segments of the T1 digital transmission path. You can only run one loopback test at a time on any one DTI. Loopback tests for T1 or ISDN-PRI lines Installer password required The following messages may appear on the Alarm Telephone during Loopback tests. Choose an appropriate time to run tests. Do not run the loopback tests while ports are being disabled or during the first two minutes after Startup programming. If you do, the tests may stop running with ports still disabled. To recover from this, unplug the ICS from the power outlet, then plug it in again. The loopback tests disrupt service. Do not run tests during busy user times. Message Explanation EVT: 210-YYYZLoopback test YYY on Trunk Cartridge Z has started EVT: 211-YYYZLoopback test YYY on Trunk Cartridge Z has ended
Tests / 553 P0603534 02Modular ICS 6.1 Installer Guide Line loopback The line loopback test loops the full 1.544 Mbps signal received from the network back to the network. The looped signal is regenerated without any change in the framing format and without the removal of any bipolar violations. The line loopback test can also be invoked and stopped remotely using the in-band signal or via the facility data link (FDL) in extended super frame (ESF) format. The line loopback test must be run in coordination with the T1 or PRI service provider. Some test patterns can cause the DTI to reset. To avoid this, start the line loopback test from your system before the T1 or PRI service provider begins their test, and stop the line loopback test from your system after the T1 or PRI service provider ends their test. Norstar ICS T1 network Norstar ICS T1 network
554 / Tests Modular ICS 6.1 Installer GuideP0603534 02 Payload loopback The payload loopback test loops the received information bits (192 per frame) back to the network. The payload loopback test can also be invoked and stopped remotely via the facility data link (FDL) in extended super frame (ESF) format. The payload loopback test must be run in coordination with the T1 service provider. Some test patterns can cause the DTI to reset. To avoid this, start the payload loopback test from your system before the T1 service provider begins their test, and stop the payload loopback test from your system after the T1 service provider ends their test. Norstar ICS T1 network Norstar ICS T1 network
Tests / 555 P0603534 02Modular ICS 6.1 Installer Guide Card edge loopback The card edge loopback test loops the outgoing signal on the DTI back to its internal received signal path. Signal paths to the external network are disconnected. Continuity loopback Norstar ICS T1 network Norstar ICS T1 network Norstar ICS T1 network Norstar ICS T1 network
556 / Tests Modular ICS 6.1 Installer GuideP0603534 02 The continuity loopback test shorts the tip and ring pair of the receive signal path with the transmit signal path. This test allows you to check the metallic continuity of the external wiring. Tests initiated from Norstar You can start and stop Loopback tests in Maintenance programming under the heading Loopback tests. You can also push a button on the DTI faceplate to start and stop the continuity test. You can run DTE and DS30 Loopback tests to verify the SDI data transfer capabilities. Under the Hardware heading, ensure that the Type setting for data module is SDI before choosing the Loopback test you will run. Tests initiated by the central office If the internal CSU is administered on line loopback and payload loopback tests can also be invoked and stopped by the central office. In order to be able to run a payload loopback test, the DTI must be configured for extended superframe format.
Tests / 557 P0603534 02Modular ICS 6.1 Installer Guide Starting a loopback tests Installer password required Start with the display showing Loopback tests:. 1. Press ≠. Show Module: displays. 2. Press ‘. Cards on KSU displays. If you want to test cartridges on another module, press ‘ until the display shows the module. 3. Press ≠. Cd1-KSU displays. If you want to test the second cartridge on the KSU, press ‘ . The display shows Cd2-KSU. 4. Press ≠. If there is an analog cartridge in the slot or the slot is empty, the display shows Need digital crd. 5. Press ‘ until the display shows the test you want to run: Continuity loopback, Line loopback, Payload loopback, Card edge loopback. 6. Press START to begin the test. The display shows the test name followed by running. 7. Press STOP to end the test. Give notice that you are running a loopback test. Calls on all T1 or PRI lines on the DTI will be automatically dropped when a loopback test is invoked. Use the Page feature to notify people using the system that a test is about to begin and that calls will be disconnected.
558 / Tests Modular ICS 6.1 Installer GuideP0603534 02 Operating a Continuity loopback test Installer password required You start the Continuity loopback test by pressing the button on the front of the DTI. Calls on all lines on the cartridge are automatically dropped when a loopback test is invoked. • The red LED above the button remains on until the test is canceled. • Invoking a continuity loopback test automatically cancels any other test in progress. • To stop the continuity loopback test, press the button on the DTI. The red LED above the button turns off when the test is canceled. Loopback test for BRI linesInstaller password required The loopback test for BRI lines loops the incoming BRI payload back to the local exchange (service provider) for evaluation of the transmission quality. Loopback tests should be conducted only under the guidance of the service provider, and the results from these tests are returned to the service provider. You can run loopback payload tests simultaneously on multiple loops or multiple cards. The loop must be provisioned to perform the test. All calls on the card you are testing will be dropped at the start of a loop payload test. Give notice that you are running a loopback test. Calls on all T1 or PRI lines on the DTI will be automatically dropped when a loopback test is invoked. Use the Page feature to notify people using the system that a test is about to begin and that calls will be disconnected.
Tests / 559 P0603534 02Modular ICS 6.1 Installer Guide Operating a payload loopback testInstaller password required Start with the display showing Loopback tests:. 1. Press ≠. Show Module: displays. 2. Enter a module number or press LIST to scroll through modules. Cards on KSU or Card on Mod X displays. 3. If you want to test cartridges on another module, press ‘ until the display shows the module. 4. Press ≠. Cd1-KSU or Cd1-ModX displays. If you want to test the second cartridge on the KSU, press ‘ to display Cd2-KSU or Cd1-ModX. 5. Press ≠. • If there is an analog cartridge in the slot or the slot is empty, the display shows Need digital crd. • If there is a BRI cartridge with U-NT or S/T loops, the display shows Loop nnn. 6. Press ≠. Payload loopback displays. 7. Press START to begin the test. Payload running displays. 8. Press STOP to end the test. Note: You can exit programming or move on to other programming or loop testing while the test is running. All calls on a BRI loop are dropped when you start loopback test. While the loopback test is in progress, the BRI lines go out of service. There is no warning from the system. Pick an appropriate time to do a test and warn users that they will lose any calls in progress.
560 / CSU stats Modular ICS 6.1 Installer GuideP0603534 02 CSU stats Each DTI is equipped with an internal channel service unit (CSU). When enabled, the internal CSU monitors the quality of the received T1 signal and provides performance statistics and diagnostic information. DTIs must be individually programmed to establish parameters for collecting and measuring transmission performance statistics by the CSU. StatisticsInstaller password required The CSU provides both performance and alarm statistics. Three performance parameters are accumulated: • errored seconds (ES-P) • severely errored seconds (SES-P) • unavailable seconds (UAS-P) These parameters are defined as per TIA-547A. Errored seconds are enhanced to include control slip (CS) events. The parameters are stored for the previous 15-minute interval, the 15-minute intervals in the last 24 hours, and the previous 24-hour interval. Only near-end performance data is recorded. The internal CSU continuously monitors the received signal and detects four types of transmission defects: • any active carrier failure alarms (CFA) — loss of signal LOS, out of frame OOF, alarm indication signal AIS, remote alarm indication RAI • the number of bipolar violations that occurred in the last minute