Nortel Networks 4450 Network Card User Manual


 
3-1
Ethernet Base Module
3
The Ethernet Base Module (EBM) performs central processing functions for any
Passport 4400 unit (4430/4450/4455).
This chapter contains information on the following features:
Attaching Cables to the Ethernet Base Module on page 3-3
Management Port on page 3-4
Frame Relay DCE Serial Access Port (Port 1) on page 3-4
Ethernet Access Port on page 3-6 (10BASE-T)
The Ethernet Base Module includes the following:
Processor and memory
Serial access port
Management port
Ethernet interfaces (10BASE-T)
Optional SIMMs.
16 Mbyte Flash Memory SIMM
16 Mbyte DRAM SIMM
Data Compression SIMM
Figure 3-1. Internal Components of the Ethernet Base Module
Stacking Connector
for all Modules
16MB DRAM SIMM
(J6 Connector)
Data Compression
16MB Flash SIMM
(J9 Connector)
Power Connector
SIMM - (J13 Connector)
Stacking Connector
for all Modules
Indicators
Fan Connectors
E21 and E23 Jumpers
Stacking Connector
for HDM Modules