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4. To set a limit for channel 1 and to have the power meter autodial a remote
computer when this limit fails, send the following sequence:
LLIM 1,-12DBM
Sets low limit on channel 1 to -12dBm
LLIMS 1,ON
Turn low limit testing ON for channel 1
MODLIM ON
Set meter to autodial when any limits fail
MODPH <phone number>
Set phone number to be auto-dialed
MODRED 3
Set redial count to 3
MODDEL 2
Set delay between each attempt to dial to 2 min.
5. Disconnect from power meter and wait for limit failure:
!BYE
Instruct power meter to hang-up its modem
Wait at least 1 second.
+++
wait at least another second.
The local modem will now respond:
OK\n\r
The local modem can now be told to hang up using the command:
ATH0\r
Again the local modem will respond
OK\n\r
6. When a limits failure occurs, the power meter will instruct its modem to dial the
previously set up phone number. As the connection is being established through
to the remote computer, a sequence of status messages will be reported by the
modem to the computer, ending with a final message of:
CONNECT\n\r
There might be additional information after “CONNECT” but before the line termi
-
nation characters.
7. After connection has been established, the power meter will send an SRQ to
the remote computer. The SRQ message is:
S\n
To determine what has caused the SRQ, the status register in the power meter
must be read. The status register in the meter is an 8-bit register. There are two
ways to do this.
ML2430A OM 5-9
PROCEDURES RS232 MODEM SUPPORT