4000 Router Series Interface Module Guide

Table 14 Interface attributes of SIC-1EPRI

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)

Coaxial connector, network interface connector, and 75-to-120-ohm

adaptor (with BNC connector)

Operating modes

CE1

ISDN PRI

Supported services

Backup

Terminal access

ISDN

Interface LEDs

SIC-1EPRI panel is shown in the following figure:

Figure 10 SIC-1EPRI panel

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

Table 15 Description for the LEDs on SIC-1EPRI 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

A 70-to-120-ohm adaptor is required to connect a 120-ohm cable to the 75-ohm SIC-1EPRI. For more

information about E1 interface cables, see "E1 interface."