Brim Leds - Nortel Business Communications Manager 450 Installation Manual

Table 10 DTM LEDs (2 of 2)
Power
Transmit alarm
Transmit error

BRIM LEDs

The BRIM has one additional LED beside each RJ-48C jack. These LEDs are
on if the ISDN line is active. For information about the location of the LEDs on
a BRIM, see
Figure 25 BRIM LEDs
Power LED
Status LED
For more information about the power and status LED functions, see
bay module LEDs (page
Copyright © 2006-2009 Nortel Networks
Status
On
On
Figure 25 BRIM LEDs (page
118).
Nortel Business Communications Manager 450 1.0
Installation — System
NN40160-301 01.04 Standard
July 2009
LED indicators reference 121
Description
The DTM cannot transmit. The DTM
sends an alarm indication signal (AIS)
to the terminating switch. This half-
duplex link does not work.
The DTM is sending a remote alarm
indication (RAI) carrier failure alarm
(CFA) to the terminating switch. If the
transmit alarm is not on, this error
indicates a far-end or cable problem.
121).
Media