Specifications

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EN54 FIREFINDER PLUS INSTALLATION,COMMISSIONING & OPERATION
11 Modem / Programming / Debug Interfacing
The modem I/O port is a Dual DB9 connector (CN8 situated on the lower left hand corner of the Main
Board BRD86MBA) that is normally used for programming of the FACP via the serial port of a PC or
Laptop. There is also a USB connector (CN25) provided to allow programming of the FACP from a
USB port of a PC. The Controller also has the required hand shaking to support connection to a
Modem, thus allowing the FACP to be programmed from a remote site that has an established
telephone connection. This allows the system software to be upgraded by simply transmitting a file
via the serial port of the PC or Modem external to the FACP. Diagnostic facilities are also available
via the same connection.
1
6
2
3
4
5
7
8
9
Tx Data
Rx Data
Signal
Ground
CN8
Plug in DB9
Connector
Note: CN8 is located on the lower
left hand side of the Main Board
Figure 72: DB9 Connector CN8 as Mounted on the Main Board
1
2
3
4
5
6
7
8
9
DB9F CONNECTOR
( Female Rear View )
2 CORE SHIELDED CABLE
DB9F CONNECTOR
( Female Rear View )
1
2
3
4
5
6
7
8
9
Rx Data
Tx Data
Rx Data
Tx Data
Plugs into FACP
To Modem or PC
Figure 73: Modem / Programming / Debug Cabling
Figure 74: USB cable Type A Male Plug - Type B 5-Pin Mini Plug
Note: Debug/Notebook cables are available from AMPAC