Sea Air and Land Communications 1262 Manuale Utente
12-62 SYNTHESIZED NRZ TRANSMITTER USER’S MANUAL
Issue 1262UE 1008
Sea Air and Land Communications Ltd
Page 4
6.1
Alphanumeric transmissions
Messages can contain any alphanumeric character. The 12-62 will accept the
standard ASCII 7 bit character set.
Messages can contain any alphanumeric character. The 12-62 will accept the
standard ASCII 7 bit character set.
6.2
Numeric transmissions
Messages can contain numeric characters and some symbols.
These can convey a telephone number, or other numerically coded information.
The transmitted message is shorter, and therefore there is a smaller chance of
errors received by the pager.
Messages can contain numeric characters and some symbols.
These can convey a telephone number, or other numerically coded information.
The transmitted message is shorter, and therefore there is a smaller chance of
errors received by the pager.
The numeric character set is as follows: 0 1 2 3 4 5 6 7 8 9 [ ] - U <space>
6.3
Tone Only transmissions
Any numeric or alphanumeric paging message without an actual text message
is also considered ‘Tone Only’. A function level will control the number of
beeps on the receiver (four different function levels can be sent).
Any numeric or alphanumeric paging message without an actual text message
is also considered ‘Tone Only’. A function level will control the number of
beeps on the receiver (four different function levels can be sent).
7.0
INITIATING TRANSMISSION
There are four ways of initiating a paging message transmission:
(1)
(1)
Using the external discrete inputs (action)
(2)
Supply detector threshold (action)
(3)
Watchdog (action)
(4)
RS232 Serial commands
An action is defined as a paging message, RIC (Receiver Identification Code or
capcode) and flags. Flags are discussed in the PSD (product support disk) section.
capcode) and flags. Flags are discussed in the PSD (product support disk) section.
7.1
External Discrete Inputs
An action can be initiated from the 4 external inputs with an input transition to
LOW (connection to GND) and/or HIGH (input floating or connection to >+3.5v).
An action can be initiated from the 4 external inputs with an input transition to
LOW (connection to GND) and/or HIGH (input floating or connection to >+3.5v).
7.2
Low supply message
After a debounce period, the low-supply detector can initiate an action for both
“supply going high” and “supply going low”conditions.
After a debounce period, the low-supply detector can initiate an action for both
“supply going high” and “supply going low”conditions.
7.3
Watchdog
The watchdog feature will initiate an action after a predetermined period. The
watchdog also optionally allows the transmission of the current state of
selected inputs (including supply level).
The watchdog feature will initiate an action after a predetermined period. The
watchdog also optionally allows the transmission of the current state of
selected inputs (including supply level).
7.4
Using the RS232 Serial Commands
Serial commands can be “manually” issued to an 12-62 using a terminal
program such as PROCOMM or Hyper-terminal.
Serial commands can be “manually” issued to an 12-62 using a terminal
program such as PROCOMM or Hyper-terminal.
12-62 SYNTHESIZED NRZ TRANSMITTER USER’S MANUAL
Issue 1262UE 1008
Sea Air and Land Communications Ltd
Page 5
Tone only, numeric and alphanumeric pagers can be called using serial
commands. These commands will be processed in parallel with other inputs
actions for transmission. Some basic commands are described in section
7.4.1. Information on the full protocol command set is available on request.
commands. These commands will be processed in parallel with other inputs
actions for transmission. Some basic commands are described in section
7.4.1. Information on the full protocol command set is available on request.
8.0
PROTOCOL COMMAND SET
CA
Usage:
Usage:
CA<pager#>[<space>]<level>[<space>]<message><CR>
Description: Call alphanumeric pager
Example:
Example:
CA1119358 1 Please return to reception<CR>
Response:
CA11193581<CR><SPACE>Page Sent<CR><LF>
CN
Usage:
Usage:
CN<pager#>[<space>]<level>[<space>]<message><
CR>
CR>
Description: Call numeric pager
Example:
Example:
CN1119358 1 777<CR>
Response:
CN11193581<CR><SPACE>Page Sent<CR><LF>
RES
Usage:
Usage:
RES<CR>
Description: Reset 12-62 microcontroller
Example:
Example:
RES<CR>
Response:
SALCOM 12-62-0000 VX.XX<CR><LF>
SN?
Usage:
Usage:
SN?<CR>
Description: Retrieve unit serial number and firmware revision
Example:
Example:
SN?<CR>
Response:
SALCOM 12-62-0000 VX.XX 5122345<CR><LF>
8.1
Error Codes/Reports
ER1 SYNTAX
You entered an invalid command
ER3 OPERND
You entered a valid command with invalid values
ER6 BUSY
12-62 is too busy to process the entered command, try again
later.
later.
ER7 OVERTEMP
12-62 is critically hot, transmission not possible until cooler.