beautypg.com

Low-speed data services modules, Low-speed data services modules -3 – Nortel Networks Passport 4400 User Manual

Page 77

background image

Data Modules

Passport 4400 Hardware Installation Module

7-3

Low-speed Data Services Modules

The Legacy Data Module (LDM) provides interface ports to support legacy data
protocols in Passport 4400. Additional interface ports are supported through the
use of the Legacy Data Expansion Module (LEM).

Figure 7-3. Legacy Data Module

Figure 7-4. Legacy Data Expansion Module

Back

Indicators

Stacking

Connectors

Rear View

Pins for LDM Memory

Expansion Card

Back

Indicators

Stacking

Connectors

Rear View