GE 90-30 PLC Series Installation And Hardware Manual page 375

Figure C-8. Cable C; RS422 Twisted Pair
GFK-0356Q Appendix C IC655CCM690 Isolated Repeater/Converter
SUBSTITUTE APPROPRIATE UP STREAM DEVICE
(WITHIN DOTTED BOX) PER SYSTEM DIAGRAMS.
PIN
SD (A) 9
SD (B) 21
SERIES 90
RD (A') 13
CMM
RD (B') 25
PORT
12
1 OR 2 TERM
RTS (A) 24
*
TERM
CTS (A') 10
RTS (B) 11
CTS (B') 22
GND 23
SHLD 7
1
25- PIN 25- PIN
FEMALE MALE
SW
ON
J2 J1
PIN
SD (A)
16
SD (B) 17
RD (A')
15
RD (B') 14
RTS (B)
12
ISOLATED
CTS (B') 10
REPEATER/
RTS (A) 13
CONVERTER
CTS (A') 11
(BRICK)
TERM 22
TERM 23
GND 7
* 150 OHMS
25- PIN
25- PIN
MALE
FEMALE
NOTE
WHEN WIRING RS-422 /485 MULTIDROP
REFLECTIONS ON THE TRANSMISSION LINE
REDUCED BY CONFIGURING THE CABLE IN A
CHAIN FASHION AS SHOWN
MASTER CMM SLAVE 1
CPU BUILT-IN PORT CMM SLAVE 2
ALSO IT IS RECOMMENDED TO MAKE ANY
CONNECTIONS INSIDE THE CABLE CONNECTOR
MOUNTED ON THE CMM. IT IS NOT
USE TERMINAL STRIPS OR OTHER TYPES
CONNECTORS ALONG THE LENGTH OF
TRANSMISSION
TERMINATE CONNECTION ON FIRST AND LAST DROPS ONLY: ON THE CMM, INSTALL JUMPER TO CONNECT INTERNAL 120 OHM
*
RESISTOR. ON THE ISOLATED REPEATER/CONVERTER, INSTALL 150 OHM RESISTOR (SUPPLIED)
ON THE CMM311, ONLY PORT 2 CAN SUPPORT RS-422/RS-485.
* *
IC655CCM590 Converter
MAKE CONNECTIONS
SHIELDED
INSIDE D-CONNECTORS
TWISTED
PAIRS
PIN
13 RD (A')
25 RD (B')
9 SD (A)
21 SD (B)
12 TERM
* 24 TERM
10 RTS (A)
11 CTS (A')
22 RTS (B)
23 CTS (B')
7 0V
1 SHLD
25- PIN
MALE
PIN
15 RD (A')
14 RD (B')
16 SD (A)
17 SD (B)
22 TERM
23
TERM
150 OHMS
* 7 GND
25- PIN
MALE
PIN
16 RD (A')
17 RD (B')
15 SD (A)
14 SD (B)
19
TERM
18
TERM
150 OHMS
7
* GND
25- PIN
MALE
TO OTHER DEVICES
(MAXIMUM OF 8 DEVICES ON A MULTIDROP)
TERMINATE THE RD (B') SIGNAL ONLY AT END
OF MULTIDROP CABLE
C
SERIES 90
CMM
PORT
I
OR
2
**
25- PIN
FEMALE
SW
J2
J1 CTS
ISOLATED
REPEATER/
CONVERTER
(BRICK)
(USED AS A
CONVERTER)
25- PIN
FEMALE
SW J1
J2
ON J
1
ISOLATED
REPEATER/
CONVERTER
(BRICK)
(USED AS A
REPEATER)
25- PIN
FEMALE
C-9