User's Manual

SALCOM 12-90 PAGING TRANSCEIVER AND STORE FORWARD REPEATER Issue 1290UB 0211
Sea Air and Land Communications Ltd Page 13
means that a message has been received and duplicate
rejected because there was a message received in the last 40
seconds that was the same.
INSTALLATION
A correctly matched 50 ohm aerial must be connected before operating the
transmitter. Failure to do so may result in damage to the unit.
Situate the 12-90 away from direct sunlight, vibration and strong heat sources, and avoid
close proximity to radio transmission equipment. The unit is not certified as intrinsically
safe.
Connect a 12 volt DC power supply to P1. The 12-90 is protected against reversed supply
connection. The power source must be reasonably noise free.
The connections to the relay contacts are made using pins 6(normally open contact),
7(relay common) and 8(normally closed contact). The relay is not to be connected directly
to mains voltages.
Radiation Hazard: Important! To comply with FCC Controlled /Occupational
Exposure Limits, the aerial must be positioned or mounted to operate at least 0.2
metre away from Occupational Staff and 0.5 metre away from the General Public. Use
only the supplied aerial, or correctly matched and installed alternative.
SALCOM 12-90 PAGING TRANSCEIVER AND STORE FORWARD REPEATER Issue 1290UB 0211
Sea Air and Land Communications Ltd Page 14
S2 and S10 Connections
S2 Connections:- S10 Connections:-
Pin 1 Ground Pin 1 +13.8V alternate supply connect
Pin 2 Not used Pin 2 GROUND
Pin 3 Not used Pin 3 Input 1
Pin 4 Not used Pin 4 Input 2
Pin 5 RS232 Tx Pin 5 Do not connect
Pin 6 RS232 Rx Pin 6 Relay Normally Open
Pin 7 Relay Normally Closed
Pin 8 Relay Common