User's Manual

Unit Descriptions - Digital Path
P/N 709C011801
Page 43
3.3 GEM (Gigabit Ethernet Module)
The GEM converts the received optical signal to two Ethernet digital connections, which are then routed along with PoE to two
remote access points. The GEM module can be installed in the following configurations:
• Installed in RAU - as an optional plug-in module (see RAU (on page 39))
• As a standalone module (GEU-S) - (see section GEU-S Installations (on page 52))
Figure 3-5. GEM Interfaces
The following tables provide descriptions of the ports and LED indicators.
Port Description
PORT A/PORT B
[2] RJ45 ports supporting 10/100/1000Base-T copper interface with
PoE+ 802.3at PSE capability for connections to remote access points
FC/APC [1] LC/UPC Fiber optic port
Table 3-2. GEM Port Interfaces
LED Description
PoE (PORT A/PORT B) Indicates power supplied to connected AP
Link
ON - the optical link to/from the connected remote functions within the
specifications in both directions.
Blinking - optical power from remote is lower than required
RUN Steady Green – GEM module SW is up and running
Table 3-3. GEM LED Indicator Descriptions