Specifications

Table Of Contents
Chapter 7 EIA-485 asynchronous interface 35
RJ-45 8-pin EIA-232/ 22/ 485 PortServer TS 8/16 MEI
The following table shows pin assignments for the RJ-45 connector for EIA-
RS 232/422/ 485 wiring.
8 pin EIA- 422/ 485 option available. (See the PortServer Users Guide-
Chapter 6 for additional details).
Pin
Number
EIA- 232
Signal
Standard 10- Pin
EIA-422/485
Signal (4/8 Wire)
Optional 8
Pin
EIA-422/
485
Signal (Alt-
4-Wire)
EIA-485 Signal
(2-Wire Mode)
01 RI TXD- (B)
02 DSR RxD- (B) RxD- (B) Data- (B)
03 RTS RTS+ (A) TxD+ (A)
04 CGND CGND CGND CGND
05 /TxD TxD+ (A)
06 /RxD RxD+ (A) RxD+ (A) Data+ (A)
07 SGND SGND SGND SGND
08 CTS CTS+
09 DTR RTS- (B)- TxD-
10 DCD CTS- (B)