Technologies Computer Driver Instruction Manual
FS-8700-16 BACnet PTP Serial Driver Manual        Page 4 of 20 
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com 
Tel: (408) 262-2299 Fax: (408) 262-9042 Toll Free: 888-509-1970  email: support@fieldserver.com 
3.  Hardware Connections 
It is possible to connect a BACnet device to any of the eight RS-232
3
 ports. These ports just need to be 
configured for BACnet in the configuration file. 
Configure the PLC (or BCU) according to manufacturer’s instructions 
RJ45 to 
EIA232 
Connector
RJ45 Connector
FUNCTION FROM TO COLOUR
Rx RJ45-01 DB9F-03 WHITE
GND RJ45-04 DB9F-05 GREEN
Tx RJ45-08 DB9F-02 BLUE
DB9M
FUNCTION FROM TO COLOUR
RX RJ45-01 DB9M-02 GREY
CTS RJ45-02 DB9M08 BROWN
DSR RJ45-03 DB9M-06 YELLOW
GND RJ45-04 DB9M-05 GREEN
GND RJ45-05 RED
TX RJ45-08 DB9M-03 BLUE
RTS RJ45-07 DB9M-07 ORANGE
DTR RJ45-06 DB9M-04 BLACK
8917-03 WIRE LIST
BASE NAME: 
FILE NAME: 
FIELDSERVER 
BACNET PTP
CONNECTION DIAGRAM
DATE: 7/30/
06 
BY: MC
(408)-262-2299
DB9F
8917-02 WIRE LIST
Note that connection to a Trane BCU requires the 8917-02 option. 
3
  Not  all  ports  shown  are  necessarily  supported  by  the  hardware.  Consult  the  appropriate  Instruction 
manual for details of the ports available on specific hardware. 










