Cisco Systems AS5800 manual Trunk Card Connectors, Ralm

Chapter 3 Channelized T3 Trunk Card

CT3 Trunk Card Overview

Table 3-1 CT3 Trunk Card LED Indicators (continued)

LED	Color	Description
RALM	Yellow	Remote alarm—Lights to indicate a T1 alarm condition was encountered
		by software for a particular port; remains OFF when the operating
		condition is normal.
NLOOP	Yellow	Network loop—Lights to indicate that at least one T1 is unavailable (status
		indicator); remains OFF when the operating condition is normal.
T3EN	Green1	Enable—Lights to indicate a CT3 card line connection enabling normal
		operation.
T3LOOP2	Yellow3	Loopback—Lights to indicate that a loopback condition exists on the CT3
		line; software controlled.
LOS	Yellow3	Loss-of-signal—Lights to indicate that the CT3 framer is experiencing a
		loss of signal (175 successive zeros).
AIS	Yellow3	Alarm indication signal—Lights to indicate the presence of AIS in the
		received CT3 line. Lights to indicate that a T3 alarm condition exists;
		remains OFF when the operating condition is normal.
FERF	Yellow3	Far-end receive failure—Lights to indicate a far-end receive failure on the
		CT3 line.
OOF	Yellow3	Out-of-frame—Lights to indicate an out-of-frame condition on the CT3
		line.

1.This LED must be lit for proper CT3 operation.

2.When in loopback mode, enables diagnostics to perform local CT3 testing without external support. The CT3 line is not affected by this condition, thus remaining disconnected and open.

3.This LED must remain off for proper CT3 operation.

Trunk Card Connectors

The CT3 front panel is designed with two types of cable connectors (see Figure 3-4). The BNC connectors are used to connect the cables carrying the T3 signals. The bantam jacks are used for local BERT circuit testing to the DS1 level.

Cisco AS5800 Universal Access Server Dial Shelf Card Guide

3-6 78-7097-03