Sea Air and Land Communications 1290 User Manual
SALCOM 12-90 PAGING TRANSCEIVER AND STORE FORWARD REPEATER Issue 1290UB 0211
Sea Air and Land Communications Ltd
Page 5
repeater.
•
Reception of a relay control protocol packet configured to trigger input, periodic
messages or received signal strength messages to be transmitted.
messages or received signal strength messages to be transmitted.
SALCOM 12-90 PAGING TRANSCEIVER AND STORE FORWARD REPEATER Issue 1290UB 0211
Sea Air and Land Communications Ltd
Page 6
SALCOM PROTOCOL
Serial messages can be sent to the serial port as a subset of Salcom protocol using a 12-
45 serial lead.
45 serial lead.
Cap codes should be within the range of 0000008 and 2000000. Message payload should
not exceed 73 characters in length.
not exceed 73 characters in length.
Alphanumeric Message Example:
To send the message of “Test Message” to cap code 1234567 beep level 1 at 512 baud.
CA1234567<SPACE>1<SPACE>Test Message<CR>
To send the message of “Test Message” to cap code 1234567 beep level 1 at 512 baud.
CA1234567<SPACE>1<SPACE>Test Message<CR>
To send the message of “Test Message” to cap code 1234567 beep level 1 at 1200 baud.
ca1234567<SPACE>1<SPACE>Test Message<CR>
ca1234567<SPACE>1<SPACE>Test Message<CR>
Numeric Message Example:
To send the message of “01109” to cap code 1234567 beep level 1 at 512 baud.
CN1234567<SPACE>1<SPACE>01109<CR>
To send the message of “01109” to cap code 1234567 beep level 1 at 512 baud.
CN1234567<SPACE>1<SPACE>01109<CR>
To send the message of “01109” to cap code 1234567 beep level 1 at 1200 baud.
cn1234567<SPACE>1<SPACE>01109<CR>
cn1234567<SPACE>1<SPACE>01109<CR>
If successfully queued for transmission the 12-90 will report:
CA12345671<CR>
CA12345671<CR>
(if Alphanumeric 512 baud) or ca12345671<CR> (if Alphanumeric
1200 baud)
Many messages may be sent to the 12-90 at once without waiting for the transmission to
complete. These are added to a batched paging transmission. This is the most efficient
method to quickly transmit messages.
complete. These are added to a batched paging transmission. This is the most efficient
method to quickly transmit messages.
If successfully transmitted the 12-90 will report:
<SPACE>Page Sent<CR>
<SPACE>Page Sent<CR>
OUTPUT CONTROL
The relay and outputs are controlled using Salcom relay control protocol (see Relay
Control Protocol below).
Control Protocol below).
The 12-90 will look for the relay control protocol embedded anywhere within the message
payload, so will cope with messages like “Main Door Open 01109” or “02112378987
01109”.
payload, so will cope with messages like “Main Door Open 01109” or “02112378987
01109”.
Relay Control Protocol: Relay commands take the form IIC0X9 where:
II is the 2 character unit ID, C is a variable number of relays to close (1-8). 0 marks the end
of relays to close, X is a variable length list of relays to open (1-8). Commands are always
terminated by a 9. A red LED will display on the PCB showing when the relay is closed.
e.g.
23109
II is the 2 character unit ID, C is a variable number of relays to close (1-8). 0 marks the end
of relays to close, X is a variable length list of relays to open (1-8). Commands are always
terminated by a 9. A red LED will display on the PCB showing when the relay is closed.
e.g.
23109
Will only address a unit with matching ID 23. Relay will be closed. No other action