User Manual

4–17Installing the Decoder
Publication 2755-833
Figure 4.9 Connecting device to HOST port of NEMA Type 1
decoder
Allen-Bradley PLC Controller via:
Cat. No. 1771-DB BASIC Module
Any RS-232 or RS-422 ASCII Device
Cat. No. 1771-DA ASCII I/O Module
Cat. No. 2760-RB Flexible Interface Module
with Cat. No. 2760-SFC1/SFC2 Protocol Cartridge
Supported Host Devices
-
-
-
HOST
RS-232 /422 /485
SCANNER A SCANNER B
AUX
RS-232
①
①
Construct your own cable using pinouts in Appendix E.
Pin
Abbreviation
Function
1 GND Chassis Ground
2 TD RS-232 Transmit Data (from decoder to host).
3 RD RS-232 Receive Data (from host).
4 RTS RS-232 Request to Send
5 CTS RS-232 Clear to Send
6 DSR RS-232 Data Set Ready
7 SIG GND RS-232 Signal Common
9 SHLD RS-485 Shield Ground
12 485 TERM RS-485 Line Termination. Jumpers to 13.
13 485 A/TERM RS-485 Line Termination. Jumpers to 12.
14 TxB+ RS-422(B) or RS-485(B) Transmit Data (from decoder to host).
15 TxA- RS-422(A) or RS-485(A) Transmit Data (from decoder to host).
16 RxA ’- RS-422 Receive Data (from host).
17 RxB ’+ RS-422 Receive Data (from host).
18 422 A/TERM RS-422 Line Termination. Jumpers to 19.
19 422 TERM RS-422 Line Termination. Jumpers to 18.
20 DTR RS-232 Data Terminal Ready
The HOST port on the NEMA Type 4 decoder has a 19-pin (male)
connector and communicates over an RS-232, RS-422, or RS-485
communication line. Figure 4.10 shows host devices you can connect
to the HOST port of the NEMA Type 4 decoder.