Data modules 7, High-speed data module, Data modules — 7 – Nortel Networks Passport 4400 User Manual

Page 75: High-speed data module -1, Section 7, “data modules, Data modules

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7-1

Data Modules

7

High-speed Data Module

There are two versions of the High-speed Data Module (HDM), one with four ports
and one with eight ports. The High-speed Data Module provides additional port
capability, identical to port 1 on the base module. The module supports RS-232,
V.35, V.36, and X.21 interfaces, determined by the cable used. The module can
support both DTE and DCE mode.

Figure 7-1. High-speed Data Module

Back

4 port

8 port

Module switch

Rear View

Stacking connectors

Indicators

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