Nortel Networks 4430 Network Card User Manual


 
4-1
Data Modules
4
This chapter describes the types of Data Modules available for your Passport
4400 unit (4430/4450/4455). These modules are defined as Legacy Data Modules
and High-Speed Data Modules.
Legacy Data Modules are described as follows:
6-Port Legacy Data Module
6-Port Legacy Data Module (with Token Ring)
8-Port Legacy Data Expansion Module
LDM Memory Expansion Module
High-Speed Data Modules are described as follows:
8-Port High-Speed Data Module
4-Port High-Speed Data Module
Legacy Data Modules
Low-speed data service is provided via the Legacy Data Module (LDM) and the
Legacy Data Expansion Module (LEM).