Chapter 2 Telephony hardware 47
Installation and Maintenance Guide
Figu re 22 DECT faceplate with eight RJ45 connectors

Fi be r Expansi o n med ia bay mo du l e

The Fiber Expansion media bay module (FEM) connect s a maximum of six Norstar expansion
modules to the Business Communications Manager system. These connections pro vide a quick
way to upgrade a Norstar system to a Business Communications Manager system.
The front bezel of the FEM has six connectors. These connections are made using fiber c ables
between the FEM module and the Norstar expansion modul es. Beside each connec tor, an LED
lights when the fiber port is enabled.
The module has port status LEDs beside each port , a s well as the usual power and status LEDs.
Figure 23 shows the front of the FEM module. Each port that is turned on consumes one DS30
bus.
Figu re 23 FEM LEDs
Each RJ45 jack
can connect to
one base station
Power LED
Status LED
Run LED
Base station power LED
DECT media bay module
Front view
Port 4
Power LED
Status LED
Port 1
Port 5
Port 2
Port 6
Port 3