Bay Networks 5393 Hardware Installation Manual page 105

Table 4-1. Remote Annex 5393/PRI Front Panel LEDs (continued)
LED(s) Description
Module Status Attn - Turns amber when the Remote Annex
(continued) requires operator attention, that is, in Monitor Mode
or when the diagnostic tests fail.
Load - Turns green when the Remote Annex is
loading the operational image or dumping a RAM
image if there is a failure. The LED turns amber if a
load error is detected.
PRI Channel These green LEDs indicate B channel allocation.
Status There are 32 PRI Channel Status LEDs. For T1, 23 are
used to indicate B channel allocation. For E1, 30 are
used to indicate B channel allocation.
Modem Config These LEDs, located on the Modem Module, indicate
Status the general status of the modems within a group.
There are eight groups of four modems (labeled 1-4,
5-8, 9-12, 13-16, 17-20, 21-24, 25-28, 29-32). An
indicator is green if all the modems within a group
are good. An indicator is amber if one or more
modems within a group are bad.
Modem Port The Modem Port Status indicators are located on the
Status Modem Module. There are two Modem Port Status
indicators for each modem port (1 through 32):
CD - Data Carrier Detect is a green LED and is on
when the carrier has been detected on the telephone
line on the corresponding modem.
TxD/RxD - This green LED flashes to indicate the
corresponding modem is transmitting or receiving
data.
(continued on next page)
Remote Annex 5393/PRI Hardware Installation Guide
Chapter 4 Troubleshooting Procedures
4-3