Nortel Meridian 1 Mini-Carrier Remote, Описание, установка и обслуживание

Страница: 102 / 152

Page 102 of 150 Installation and configuration
P0914209 Standard 3.00 April 2000
— If the LED for carrier 0 RMI (near end) is OFF but the RMI and the
LMI cannot establish communication due to a carrier alarm
condition on the LMI (distant end), the D S command will show “No
Alarm” on carrier 0 on the RMI (near end), and the D S D command
cannot retrieve the far end status.
5 Disconnect the patch cable from the I/O cable connector for carrier 0 that
was just tested and repeat steps 1 through 5 for carrier 1 as equipped
before proceeding to step 6.
6 Any carrier faults must be isolated and corrected. In case of mismatched
carriers, the patch cables must be traced to the demarcation point at each
end, and the carrier circuit IDs verified at both ends to determine which
end of the carrier has been mis-wired or incorrectly identified.
7 After all carriers have been identified and labeled at the I/O cable
connectors, they should all be plugged into the proper I/O cable
connectors for the RMI and tested individually using the MMI Carrier
Test 3 (Remote Loopback). Refer to Procedure 3 “Testing the carriers,”
on page 114.
The carrier links are now connected correctly. This will be further established
during acceptance testing when the actual calls are made to verify the voice
and data transmission across the carrier links.
Display current mini-carrier equipment configuration
Before you conclude the installation and configuration of the MCR, re-verify
the configuration parameters and make sure that they are set properly.
To display the configuration parameters, execute the D C command on the
MMI terminal. See Figure 20 “DISPLAY CONFIG (D C) screen,” on page
83 for an example of what the MMI terminal may display:
Parameter values explanation:
• Alarm Enabled—Alarm monitoring and logging is enabled. MCR
messages are enabled.
• Alarm Threshold—Number of bipolar violations. E-6 represents 10
–6
or 1 error in 1 million bits, E-5 represents 10
–5
or 1 error in 100,000 bits,
and E-4 represents 10
–4
or 1 error in 10,000 bits.