User's Manual

COMTRAC RADIO
USER MAUAL
Business Entity Identifier
Business Identifier
DTC
Revision
9950-15900
3CU 04036 0026 PCZZA
108
0A
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4.6 RF Ports
There are four RF N-type female, 50 ohm connectors, labelled below.
For CBTC implementation, the following default antenna ports are identified below.
RF Port
STA
AP
ANT 1
Not used
Not used
ANT 2
Not used
Not used
ANT 3
Diversity (modem-0)
Main Antenna
ANT 4
Diversity (modem-1)
Not used
To avoid radio receiver saturation, the maximum input signal level to the radio should not
exceed -10dBm. The absolute maximum continuous input power is +10dBm.
4.7 USB Ports
The Universal Serial Bus (USB) port is a shielded USB Standard A port that provides
connectivity for USB-A port and USB-B port. The interface supports USB 1.0 and 2.0
compliant storage devices, formatted with FAT32 file system.
Note: Not all USB thumb drives are supported.