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COMMUNICATIONS CONNECTIONS
CONTROL RS422
This 9 pin ‘D’ connector on the rear panel is the RS422
control connector. Connections are as follows:
Pin 1
Ground
Pin 2
Transmit TXA
Pin 3
Receive RXB
Pin 4
Common (Transmit Signal)
Pin 5
Ground
Pin 6
Common (Receive Signal)
Pin 7
Transmit TXB
Pin 8
Receive RXA
Pin 9
Ground
REMOTE PANEL
This 9-pin ‘D’ connector allows an interconnection to
be made to a remote or other panels in a multiple-unit
system.
ROLLCALL
This single BNC connector allows the unit to be
connected to the RollCall
network communications
system.
For more details of the RollCall
system see Section 1
PANEL
ROLLCALL
CONTROL
SERIAL
A
B
LOOP
REMOTE
SECTION 3
Installation
SERIAL OUTPUT
CONTROL
COMPO
P
Y
P
Y/G
3
2
1
RS422
4
ROLLCALL
CONTROL
MDD550050398
Software Version 1.3.1 onwards 3.2