Rs-232 Communications Port - Kidde ARIES Installation, Operation And Maintenance Manual

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RS-232 COMMUNICATIONS PORT

The ARIES Control Unit has two RS-232 communications ports (J3/RS232B and J8/RS232A) to
connect to the Intelligent Interface Module (IIM) and various third-party supplementary devices
such as serial printers and graphical monitoring systems.
Note: It is recommended that the RS232B port (J3) be used when only a single RS232 port is
necessary.
• 9600 Baud Rate
• No Parity
• 8 Bit Word Length
• 1 Start Bit
• 1 Stop Bit
The RS-232 connection to the main printed-circuit board is via an RJ12 socket. The following
signals are communicated via the RJ12 socket's pins:
Signal
Transmit Data
Signal Ground
Request to Send
Clear to Send
Receive Data
Note: Pin No. 2 is not used.
The RS-232 communications port can be connected to its associated supplementary device with
a standard RS-232 cable of up to 50 feet in length.
P/N 06-236530-001
Table 2-2. RJ12 Socket Pin Signals
Designation
TX
Gnd
RTS
CTS
RX
J3
Pin 1
Figure 2-31. RS-232 Communications Ports
2-29
J8
Pin 1
Pin No.
1
5
3
4
6
August 2013