3com S21x Manual De Usuario

Installing the PathBuilder S21x Switch Hardware 

2-7

This section describes cables required to connect to the PathBuilder S21x switch.

The table below lists the port characteristics, connector and cable requirements.

1

DB25

DIM Site Daugh-
tercard

V.11, V.24, V.35, 
V.36

DB25-to-DB25 
Cable

V.11, V.35 and V.36 - 
Max. sync speed 2 
mpbs

V.24 - Max. sync 
speed 80 kpbs, Max 
async speed 115.2 
kbps

Selectable

DIM Site Daugh-
tercard

DSU DIM

DSU/EIM Cable 
Assembly and 
Lease Line Telco 
Cable shipped with 
Integral DSU only

DSU - 56 kbps

DTE DSU

RJ48S

DSU 

Daughtercard

DSU Telco Cable 
shipped with DSU 
Daughtercard

DSU -56 kbps

DTE DSU 

RJ11

Voice Relay 

Daughtercard

RJ11-to-RJ11 
Cable

N/A

N/A

RJ45

S/T 
Daughtercard

RJ45-to-RJ45 
Cable

Either 56 or 64 kbps 
for each B Channel 
and 9.6 kbps for the 
D Channel

N/A

BNC video 
connector

RemoteVu 
Daughtercard

BNC-to-BNC 
Cable

RJ45 
connector

RemoteVu 
Daughtercard

RJ45-to-RJ45 
Cable

RJ45

Dual FXS 
Daughtercard

RJ45-to-RJ45 
Cable