4000 Router Series Interface Module Guide

Table 17 Description for the LEDs on SIC-1T1-F 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 T1 interface cables and the connection methods, see "T1 interface."

Serial interface module

• SIC-8AS

• SIC-16AS

• SIC-1SAE

• SIC-2SAE

• SIC-4SAE

SIC-8AS

Introduction

The 8-port asynchronous serial interface module (SIC-8AS) mainly transmits and processes asynchronous

data streams.

SIC-8AS has these features:

• Each asynchronous serial port provides a rate up to 115.2 Kbps.

• Supports the terminal access service and asynchronous dedicated line.

• Serves as the small-/medium-sized ISP dial-up access server when an asynchronous serial port is

used for dial-up.

Interface attributes

The following table describes the interface attributes of SIC-8AS.

Table 18 Interface attributes of SIC-8AS

Attribute Description

Connector DB60

Number of connectors 1

Interface cable Customized cable with 8-port RJ-45 connector

Interface standard RS232