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7.9.4
Direct RS-232 Control Or Data Testing
Direct connection can be made to the communication processor. RS-232
Communications can be used during testing to monitor the serial data traffic going out to
other PTZ sites. i.e. A laptop computer can be used to show the actual data information
as it is being transmitted. This port can also be used to communicate directly with a
single PTZ site receiver in a standard RS-232 format.
7.9.5
LED Indicators
L1 TT indicator. If ON, indicates that the PTT drive circuit is active. PTT active selects
transmit mode on a two-way radio.
L2 TX DATA indicator. Blinks when the valid data is being transmitted to a PTZ site
receiver.
L3 COMMS indicator. Remains ON for valid PTZ site communications. Switches OFF if
a polled PTZ site receiver does not answer.
L4 MODULE WRITE indicator. Blinks when the RD-315 module has been written to by
the RD105 subrack controller module.
L5 MODULE READ indicator. Blinks when the RD-315 module has been read by the
RD105 subrack controller module.
Rev. C
RS-232 Part of DB25 connector
Pin No
14,15
1
2
Description
RS-232 Signal Ground
RS-232 Receive Data
RS-232 Transmit Data
7.9-4
HMXMU001018
10/06
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