User's Manual

Table Of Contents
Unit Descriptions - Ethernet Path
CMA-331-AEN
Page 57
3.2 CEU
The CEU is a centralized Ethernet-over-fiber media and rate converter unit. Located at the remote end, it converts Ethernet
media (from a LAN switch) to fiber media for routing towards GEM modules. The CEU hosts three centralized media converter
modules (CEMs).
Figure 3-2. CEU Front Panel with Installed CEM Module
Figure 3-3. CEU Rear Panel
3.2.1 CEM
The CEU supports up to three CEM modules, where each CEM supports four Ethernet ports (LAN switch connections) and four
F/O connectors (towards GEM modules). All interfaces (except for power) are located on the front panel.
Figure 3-4. CEM Interfaces (Installed in CEU)
The CEM module interfaces include Ethernet connections to the Ethernet switch, F/O connections and LED status indicators.