Salcom POCSAG Product Information - 12-04-0000
SALCOM 12-04-0000 POCSAG RECEIVER with RELAY OUTPUTS
Issue A 06/02
Sea Air and Land Communications Ltd
Page 4
12-04-0000
POCSAG Relay Output Receiver
GENERAL
The 12-04-0000 POCSAG Relay Output Receiver provides the ability
to remote control relay outputs using SALCOM paging systems or
telephone wide area paging networks.
OPERATION
The unit receives and decodes a numeric or alphanumeric pager call.
If the received unit number matches the 12-04-1000 unit number, the
relay outputs are switched according to the ON/OFF fields of the
message.
INSTALLATION
Situate the 12-04-0000 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.
In good coverage areas fit the aerial to the aerial socket as shown on
the cover. An external aerial may be needed where reception is poor.
Connect a 12 volt DC power supply to the power terminals (see figure
1). The 12-04 is protected against reversed supply connection. The
power source must be reasonably noise free.
The connections to the relay contacts are made using the pairs of
terminals, labelled “relay1”. These are normally open contacts, but can
be configured to be normally closed by special order.
A second relay channel can be factory fitted on special order.
CORRECT
OPERATION
The operation of the unit is shown by the RED LED in the corner of the
PCB. See figure 1. Correct operation is shown by this LED flashing. If
the LED does not light, check the voltage on the supply terminal block.
During the reception of a valid command with the correct RIC code, this
LED will stay on for approximately one second. When a relay is
commanded on, the corresponding LED will light next to the relay.