Carrier Access Access Navigator user manual Send DS1 Payload Pattern

Diagnostics & Troubleshooting

Send DS1 Payload Pattern

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

Access Navigator

Line

Far End

Bit Error Rate Test

	Pattern			Code	Unframed
		Generator				Pattern
Command
	Time Slot						Line
			Framer			Interface
Interchange
							Unit

Line

Test

IN

DS1 OUT

BERT

CSU DS0s

Figure 15-23. Send DS1 Line Pattern

Syntax: send ds1 <n> line <p2e11p2e15p2e23qrss>

Field

n

p2e11

p2e15

p2e23

qrss

Description

DS1 number, 1 to 32, or a range of numbers such as 2-8.

Send 211–1 pattern with a maximum of 10 consecutive zeros and 11 consecutive ones. (Minimum stress testing.)

Send 215–1 pattern with a maximum of 14 consecutive zeros and 15 consecutive ones. (Provides maximum number of consecutive zeros permissible in framed, non-B8ZS testing.)

Send 223–1 pattern with a maximum of 22 consecutive zeros and 23 consecutive ones. (Maximum stress testing.)

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.)

Send DS1 Payload Pattern

This command transmits a framed test pattern to verify the quality of the DS1 signal reaching far-end CSU equipment, such as the Access Bank II. The operator can select from several pseudo-random test patterns, as well as all-ones, all-zeros, and 1-in-8.

When the operator commands the selected pattern, the Access Navigator generates and transmits the unframed pattern over the DS1 (see Figure 15-24).

15-44 August 2003 Access Navigator - Release 1.8