Carrier Access Access Navigator user manual Send DS1 Network Loopup

CLI Language Reference

CLI Command List

Item	Description
Error Rates	Total error rates measured during the 10-second test interval,
	expressed in scientific notation where "e" indicates a power of
	10. For example, 1 error per 1.544 megabits is 6.520000e-07.
	The maximum value is 2.700000e-03.

Send DS1 Network Loopup

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:

NOTE:

For normal operation, the loopback must be disabled (loopdown).

This command works with ESF framing.

Purpose: Sends an out-of-band (FDL) loopup or loopdown message over the Access Navigator DS1.The network loopup is used with other commands and test equipment to verify that the DS1 signal is reaching a far-end Network Interface Unit (NIU), such as a “Smart Jack.”

Network loopups can be used with either unframed (line) or framed (payload) patterns and test commands, including Send DS1 Line <pattern>, Send DS1 Line <pattern> Test, Send DS1 Payload <pattern>, and Send DS1 Payload <pattern> Test.

When the operator sends the network loopup command, the Access Navigator transmits an FDL message over the drop DS1 to the NIU. After the required 5-second integration time, the NIU should perform a line loopback, which loops the received DS1 frame back to the DS1 transmit output (see Figure 18-7).

When testing is complete, send a network loopdown command.

Network	Access Navigator					Far End
		Code	FDL
				Network Loopback
Loopup
		Generator	Code
Command
					Smart Jack

		Time Slot			Line			IN
			Framer	Interface		DS1
	Interchange						OUT
					Unit
			Figure 18-7. Send DS1 Network Loopup
Security: Level 2 (operator)

NIU

18-70 August 2003 Access Navigator - Release 1.8