Table 1-3. Modem Port Status Leds - Bay Networks 5393 Hardware Installation Manual

Chapter 1 Introduction
Network Status Alarms
1-12 Remote Annex 5393/PRI Hardware Installation Guide

Table 1-3. Modem Port Status LEDs

LED Description
CD CD (Data Carrier Detect) indicator is green and ON when
the carrier has been detected on the telephone line on the
corresponding modem. There are 32 CD indicators, one
LED per channel, on the front of the Modem Board.
TxD/RxD These indicators are green and flash to indicate the
corresponding modem is transmitting or receiving data.
There are 32 TxD/RxD indicators, one LED per channel, on
the front of the Modem Board.
The six Network Status Alarms display network activity during
system operation. Table 1-4
Technical Support personnel can use this information to diagnose
problems.
describes the alarms.