4000 Router Series Interface Module Guide

116

Figure 121 FIC-1CT3 panel

The following table describes the LEDs on the module panel.

Table 168 LEDs on the FIC-1CT3 panel

LED Descri

tion

LINK/ACT

• ON means the carrier signal has been received.

• OFF means no carrier signal has been received.

• Flashing means data is being transmitted or/and 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 T3 interface cables, see "E3/T3 interface."

ISDN BRI interface module

• FIC-4BSE

FIC-4BSE

Introduction

FIC-4BSE, the four-port ISDN BRI interface module, transmits, receives, and processes four channels of

ISDN BRI S/T data traffic on ISDN BRI S/T interfaces.

The FIC-4BSE differs from the FIC-4BS only in the way they set matched resistance for an ISDN BRI S/T

interface: the FIC-4BS uses jumpers while the FIC-4BSE uses DIP switches.

The FIC-4BSE can work in dial mode or leased line mode.

Interface attributes

The following table describes the interface attributes of the FIC-4BSE.

Table 169 Interface attributes of the FIC-4BSE

Attribute Description

Connector RJ-45

Number of connectors 4

Cable ISDN S/T cable