Wiring an ADR BTR to a 25 Pin RS232 PC PORT

SINGLE DROP - STAR WIRING


RS232 Serial Port Cable
FEMALE cable plug

mates with PC

DB25 Pin Male Connector

  MALE cable plug

mates with AMI J3

DB9 pin Female Connector

DB25 pin signal Direction J3 pin signal
2 TX 2 RX
3 RX 3 TX
7 GND 5 GND
4 RTS jumper1  
5 CTS
6 DSR jumper2
8 DCD
20 DTR

Notes:

  1. The ADR BTR only uses 3 RS232 signals - do not connect any signals to the pins not listed for J3.
  2. Be sure ADR BTR RS232 jumper is in place and RS422 jumper is removed.
  3. Software may require jumpers on the PC end of the cable