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Changing Parameters Using the SL Commands
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SRL-35 Operator’s Manual
P/N: 1003224-01
Other Functions
Table 33. Other Functions
Command
Effect and description of command
SL**>
Set current settings as permanent settings.
This command must be used only seldom and under controlled conditions in order to avoid the
corruption of the settings, which may happen in case the power supply fails in the middle of the
memory save procedure.
SL%V?
Get Firmware revision information (response ’Vn.nn’)
SL%D?
Get modem type
SL%S?
Get modem serial number (response ‘nnnnnnnnnn’ or ‘No Serial nr’)
SL%C?
Get specified information field. If not specified the response is ‘No version id’). For more information
please contact Topcon.
SL%P=1
Activate
Programming mode
without the use of PROG pin. Note that the serial port data speed
remains the same as in the data transfer mode.
SL%B?
Get serial data parameters, response is a,b,c,d where
a= "38400", "19200", "9600", "4800", "2400" or "1200" (defines the baud rate)
b= "8", "7" or "9" (defines the character length)
c= "N", "E" or "O" (defines the parity)
d= "1" or "2" (defines the number of stop bits)
SL%B=a,b,c,d
Set serial data parameters for data ports, where
a= "38400", "19200", "9600", "4800", "2400" or "1200" (defines the baud rate)
b= "8", "7" or "9" (defines the character length)
c= "N", "E" or "O" (defines the parity)
d= "1" or "2" (defines the number of stop bits)
Response is "OK" at the original baud rate.
SL+P=xx
Get measured signal strength from the remote modem i.e. SL “ping”.
If a remote radio modem is pinged the response is “OK, Modem xxxx rssi –80 dBm”, where
xxxx=RX1/RX2 address (in case the TX/RX addressing is configured) or the terminal address of the
modem ( in case the Message Routing is ON). “OK” is first received from the current radio modem to
acknowledge that the SL-ping command has been interpreted correctly. The rest of the response will
take a little longer to come, depending on the length of the radio link.
The remote radio modem that is to be pinged does not need to have SL Commands ON.
The value of the RSSI is between –118 and –80 dBm. If the signal strength is better than –80 dBm, -
80 dBm is shown.
If the current radio modem is pinged, the response is “Local OK”.
Please note that the SL-ping message will come out from the serial line of the radio modem that is
pinged and also the repeater stations using the TX/RX addressing.
Note, SL-ping is a very short message so it may not give accurate results from the link condition.
Even if the responses are good, channel interference may cause problems with longer data
messages.
