Appendix C - Optional Rs-232 To Rs-485 Adapter Atr-2485 User Manual - PeakTech 1890 Bedienungsanleitung

INTRODUCTION
This adapter is designed for connecting your PC with RS-232 communication port to HALF-DUPLEX
RS-485 interface programmable power supplies (or other equipment). Its transmission length can be
up to 1000 m.
FEATURES & BENEFITS
* No driver software is needed
* Can directly be connected to male RS-232 communication port of your PC
CONTROL AND PIN ASSIGNMENT
(2)
(3) (4) (5)
Fig. 1
(1) RS-232 (Connect to the PC communication port)
(2) RS-485 (Connect to equipment with RS-485 interface)
There are 6 pins, only A+, B- and GND pin are useful.
(3) Pin A+
(4) Pin B-
(5) Pin GND
SPECIFICATIONS
RS-232 side of the adapter
RS-485 side of the adapter
Connection Speed
Transmission Length
Dimensions
Weight
APPENDIX C
Optional RS-232 to RS-485 Adapter
User manual
DB-9 female connector
3-pin connector – Pin 1: RS-485 (+A)
Pin 2: RS-485 (-B)
Pin 3: GND
9600 bps
Up to 1000 m
(WxHxD) 33 x 17 x 87 mm
40 g
-55-
RS-232 to RS-485 Adapter
(1)