COBHAM OMU I - Page 25

OPTICAL MASTER UNIT MARK I
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 4-Jan-18 www.cobham.com/wireless
Document number:A1829300UM Rev. 3.1
Page | 19
Example 2
In the example below there are separate inputs for Rx and Tx and no duplex filter. An external
modem antenna is connected and linked to the modem on the Control Module.
RF Backplane
Opto Module
RF
IN
RF
OUT
Control Module
External Alarm and Battery Module
Rack Com Board
Power Module B
Power Module A
Digital Backplane
DL Splitter
UL Combiner
Opto Module
RF
IN
RF
OUT
Opto Module
RF
IN
RF
OUT
Opto Module Opto Module
RF
IN
RF
OUT
Opto Module
RF
IN
RF
OUT
Opto Module
RF
IN
RF
OUT
RF in/out
External Modem Antenna