Watkins-Johnson Company WJ-8711A, Installation, Operation And Maintenance Manual

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WJ-8711A DIGITAL HF RECEIVER CSMA REMOTE CONTROL
5-17
FE
PREAMBLE
FE
RX
ADDR
TX
ADDR
CONTROL
CODE
END OF
MESSAGE
1A F1 37 00 FD
CONTROL
MODE
87IL25
Figure 5-20. Device Control Mode Command Format
One byte is sent with the control code. In the example, the Local control mode is selected
[00]. The selection can also be either Remote mode [01] or Remote with Local Lockout [02]. Sending [02]
disables the WJ-8711A's front panel REMOTE key (i.e., a local operator cannot place the receiver out of
Remote mode).
5.8.17
RESPONSE TO DEVICE CONTROL MODE REQUESTS [36]
Figure 5-21 shows an example of the typical response format when requesting the receiver's
current control mode with control code [36].
FE
PREAMBLE
FE
RX
ADDR
TX
ADDR
CONTROL
CODE
END OF
MESSAGE
1A F1 36 01 FD
CONTROL
MODE
87IL26
Figure 5-21. Device Control Mode Request Response Format
The byte in the response after the control code contains the device control mode code. The
response in this byte is [00] for Local, [01] for Remote, or [02] for Remote with Local Lockout. In the
example, the Remote control mode is selected.
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