Salcom 12-88-7000 Product Manual - page 6
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12-88-7000 OUTPUT CONTROL RECEIVER
Product Manual
Sea Air and land Communications Ltd, 10 Vanadium Place, Addington, Christchurch 8024, New Zealand
July 2017
Operation
When operating normally, D3 (visible with case removed) will flash green once every second.
When the relay is in the closed state the red LED D1 will be lit. The relay will operate only when a
correct Salcom relay control message is received with a matching unit ID.
There is no visible indication when either of the two open collector outputs are operated,
making them well suited for extremely low current applications. When only open collector
output control is required the 12-88 can be supplied with any voltage down to 4 volts. A 12 volt
supply is required for relay operation.
To control the outputs a message must be received that matches the unit ID with a suitable
control code sequence (Salcom relay control protocol). The received message must also be
the expected baud rate (512 or 1200) and format (alphanumeric or numeric). The 12-88 will
also respond to a group unit ID of “00”. The onboard relay is addressed as output 1, open
collector outputs as output 2 and output 3.
A mono-shot timer can be set for each output allowing the output to open automatically after
being closed. This mono-shot timer can be set to between 100mS seconds to 100 minutes (in
100ms steps).
Setting any output mono-shot timer to 0000 results in the output remaining latched until a
message is received to change its current state.
If configured to do so, each output state will be stored and restored to the last set state on
power up.
The 12-88 can be configured to respond to up to 4 different cap codes. Setting any cap code
to 0000001 will result in all cap code messages being examined for the output control message.
Unit Number
Each unit will respond only to messages containing a matching unit ID or a group ID of 00. Up to
99 unique unit numbers are available when configured as a numeric receiver (00-99).
Approximately 8000 unique unit codes are available when used as an alphanumeric receiver
(any 2 printable characters).
Any number of units can be programmed with the same unit number.
Mono-Shot
Output mono-shot (momentary) operation can be enabled if required. Each output can have
its own Mono-shot time, ranging from 100mS to 100 minutes in 100mS steps. Setting the value to
0000 disables the mono-shot timer altogether, and the relay output is latched until
commanded off.
If the unit is configured to restore output states on power on, output state restoration will not be
applied to any output with a configured mono-shot time set.