4000 Router Series Interface Module Guide

130

Attribute Description

Number of connector 1

Interface standard

• G.703/T1.102

• G.704

• AT&T TR 54016

• AT&T TR 62411

• ANSI T1.403

Interface rate 1.544 Mbps

Cable type T1 cable (100-ohm standard shielded cable)

Operation mode

• CT1

• ISDN PRI

Services

• Backup

• Terminal access

• ISDN

Interface LEDs

FIC-1VT1 panel is shown in the following figure:

Figure 135 FIC-1VT1 panel

Description for the LEDs on FIC-1VT1 panel is shown in the following table:

Table 189 Description for the LEDs on FIC-1VT1 panel

LED Descri

tion

LINK/ACT

• ON means carrier signal has been received.

• Flashing means data is being received or/and transmitted.

• OFF means no carrier signal has been received.

LP/AL

• ON means the interface is in a loopback.

• Flashing means an AIS, LFA, or RAI alarm signal is present.

• OFF means no loopback or alarm is present.

Note:

AIS = Alarm indication signal; LFA = loss of frame alignment; RAI = Remote alarm indication

Interface cables and the connection methods

For more information about T1 interface cables and the connection methods, see "T1 interface."