Nortel SONET AccessNode Manual page 53

Procedure 2-4 (continued)
Testing DS3 or STS-1 protection switching
Step
6
Testing manual switching
7
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. An asterisk (*) indicates that protection is active. After
causing a switch to protection, look at the display to verify that the switch has
occurred as expected. A dash (-) indicates not applicable.
If STS connections
are established
are not set up yet
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> is used if secondary optics are being tested
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.
If you move from one screen to another, the connections are dropped. If you
stay in the same screen you can issue new commands without affecting
traffic.
If you
move from one screen to another connections are dropped
stay in the same screen
Manually switch the DS3 or STS-1 traffic on the first working DS3/STS
mapper or STS-1 interface card to protection.
Note 1: For simplicity in this procedure, the mapper under test is assumed to
be mapper G1. If you are testing a working DS3/STS mapper or STS-1
interface card in a different slot, then when entering commands, substitute the
applicable group number of the working DS3/STS mapper or STS-1 interface
card. Table 2-1 on page 2-3 shows DS3 or STS-1 group and slot
associations.
—continued—
AccessNode Site Testing Procedures 323-3001-221 Issue 2.0
DS3 tests, STS-1 tests, and optical in-bay tests 2-35
Then
you can issue new commands without
affecting traffic
Then go to
step 7
step 6