Dch Tests - Nortel Communication Server 1000 Maintenance Manual

DCH tests

There are four types of DCH tests. They are:
•
•
•
•
The DCH tests 100 and 101 are hardware tests, while the 200 and 201
test the DCH software.
DCH tests 100 and 101
DCH tests 100 and 101 are isolated hardware tests. See
tests 100 and 101" (page
DCHI. Test 101 checks the DCHI loopback capability. If either test fails,
either a faulty DCHI or a contention problem is indicated. A test failure
initiates DCH error messages.
Tests 100 and 101 must be run in sequential order (tests 200 and 201 may
follow). Established calls stay up, but new calls cannot be placed.
Procedure 8
Testing DCHI hardware
Step
1
2
3
4
5
Copyright © 2003-2009 Nortel Networks
.
DCH test 100
DCH test 101
DCH test 200
DCH test 201
Action
Log in to the overlay system.
Then, enter LD 96 by entering the command.
LD 96
If the DCHI link is disabled, it must be enabled by entering the
commands.
STAT DCH N (responds DSBL)
ENL DCH N(if a problem caused the disabled state, RLS will
occur; if the disabled state is cleared, status will be EST).
RST DCH N
Place the DCHI link in the reset state (from either the established
or Released state) by entering the commands.
STAT DCH N (responds either EST or RLS)
RST DCH N
Activate the first hardware test by entering the command.
TEST 100 N
Activate the second hardware test by entering the command.
Nortel Communication Server 1000
ISDN Primary Rate Interface Maintenance
NN43001-717 03.01
11 May 2009
64). Test 100 checks interrupt generation on the
DCH tests 63
Figure 10 "DCH