Carrier Access Access Navigator Send DS1 Payload pattern Test, Example send ds1 9 payload p2e15

CLI Language Reference

CLI Command List

Field

qrss

Description

Send QRSS pattern (a modified 220–1) with a maximum of 14 consecutive zeros and 20 consecutive ones. (Common stress test for T1 data applications.)

Example: send ds1 9 payload p2e15

The CLI will provide a progress message indicating the progress of the command, as in the following samples.

Message: Sending pattern. Use 'send ds1 <n> off' to stop.

Example: set ds1 9 down

send ds1 9 csu loopup

send ds1 9 payload allzeros (monitor test set for errors) send ds1 9 off

send ds1 9 csu loopdown set ds1 9 up

The above example uses the all-zeros pattern and a test set to check for B8ZS clear channel capability and to find equipment incorrectly set to AMI line code.

Send DS1 Payload <pattern> Test

NOTE: The DS1 must be set Out of Service, using the set ds1 <n> down command, before you can use loopbacks or test patterns.

NOTE: Put the remote CSU in payload loopback mode before using this command for BER testing. (See Send DS1 CSU Loopup on page 18-62.)

NOTE: This command works with ESF and D4 (SF) framing.

NOTE: The p2e patterns are intended only for Access Navigator loop tests and for tests between two Access Navigators. Other test equipment will not recognize these patterns.

NOTE: The internal Bit Error Rate Testers (BERTs) are always monitoring the DS1 inputs. Anytime a BER test pattern is present, whether internally or externally generated, the BER for the last one-second interval can be displayed using the status ds1 command (see Status DS1 on page 18-159). Bit errors are also recorded in the BERT log (see “Log BERT” on page 18-40).

Purpose: Transmits a framed test pattern and performs a Bit Error Rate Test (BERT) or pattern synchronization test to verify the quality of the DS1 signal reaching far-end CSU equipment, such as the Access Bank II. When the operator requests a p2e, qrss, or all- ones test pattern, the Access Navigator transmits the test pattern while using its internal Bit Error Rate Tester to measure the bit error rate. See Figure 18-11.For the all-zeros and 1-in-8 patterns, the Access Navigator tests for pattern synchronization.

Access Navigator - Release 1.8 August 2003 18-77