4000 Router Series Interface Module Guide

Figure 26 SIC-1VE1 panel

The following table describes the LEDs on the SIC-1VE1 panel.

Table 41 LEDs for the electrical interface on the left of SIC-1GEC panel

LED Descri

tion

LINK/ACT

• ON means carrier signal has been received.

• Flashing means data is being transmitted or received.

• 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 neither loopback nor 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 E1 interface cables, see "E1 interface."

SIC-1VT1

Introduction

1-port T1 voice interface module (SIC-1VT1) can handle dense voice signals in VoIP system. It provides a

CT1/PRI/R2 port, allowing the access of 23 channels of voice signals.

Interface attributes

Table 42 Interface Attributes of the SIC-1T1-F

Attribute Description

Connector RJ-45

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