4000 Router Series Interface Module Guide

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Figure 149 Connecting the U interface cable to the SIC-1BS interface module

2. If the service provider provides an ISDN S/T interface cable, directly connect the cable to the RJ45

interface of the SIC-1BS interface module.

Figure 150 Connecting the S/T interface cable to the SIC-1BS interface module

E&M interface

E&M interface appearance and the applicable model

MIM-4E&M/FIC-4E&M modules support Bell I, II, III, V switches, and 2-wire & 4-wire voice signals.

HP recommends that you use Bell V 4-wire voice signal to communicate with the router in practice.

The sequence of E&M RJ-45 pins is shown in the following figure, numbered 1 to 8 in order from PIN1:

Figure 151 Sequence of RJ-45 pins

Magnetic-core telephone cable

SIC-1BS

ISDN U interface cable of Service provider

NT1

S/T U