4000 Router Series Interface Module Guide

Figure 8 SIC-1E1-F panel

The status description for the LEDs is shown in the following table:

Table 11 Description for the LEDs on SIC-1E1-F 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-2E1-F

Introduction

2-port fractional E1 interface module (SIC-2E1-F), where F indicates fractional. The SIC-2E1-F supports:

• Transmission/Receiving and handling of E1 data streams

• CE1 (channelized E1) access

• Remote loopback and local loopback functions, facilitating fault test and location.

The FE1 operating mode supported by the SIC-2E1-F module allows only one bundle. The time slots can

only be bundled into one n x 64 kbps channel, where n is in the range of 1 to 31.

The SIC-2E1-F does not support the PRI mode.

Interface attributes

The interface attributes of SIC-2E1-F are shown in the following table:

Table 12 Interface attributes of SIC-2E1-F

Attribute Description

Connector type

D15

Number of connectors

Interface standard

G.703, G.704

Interface rate

2.048 Mbps

Cable type

75-ohm unbalanced coaxial cable (D15 to BNC)