Technologies Ethernet Port Start-Up Guide
FieldServer FS-X25 Start-Up Guide               Page 7 of 12 
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com 
Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldserver.com 
3.1.2  DB-9 Pinouts for RS-485 Connection 
Four Wire (full duplex multidrop) 
Two Wire (1/2 duplex) 
Note: The flow signals, RTS  and CTS, should  be connected  as per diagram when  unused to prevent loss of 
performance on the FieldServer. 
For users  who do  not wish to construct  their  own connector, we  recommend using a DB-9 to screw block 
connector which can be purchased from L-Com, Inc. 
Item #: DGB9FT  Ph: 1-800-341-5266 http://www.l-com.com/item.aspx?id=8141 
3.2  Ethernet Connection 
The FS-X25 Ethernet port automatically senses an uplink connection, and may therefore be connected to a PC or a 
hub/switch using either a crossover cable (not supplied) or a direct Ethernet cable (supplied).  
Figure 2:  Ethernet Connection port 










