GE 90-30 PLC Series Installation And Hardware Manual page 376

C
Figure C-9. Cable D; RS-422 Twisted Pair
Figure C-10. Cable E; RS-232 Converter to CMM
C-10 Series 90-30 PLC Installation and Hardware Manual – August 2002
SW
J2 J1
ON
PIN
SD (A) 16
SD (B) 17
RD (A') 15
RD (B') 14
CTS (A') 11
ISOLATED
CTS (B') 10
REPEATER/
TERM 22
CONVERTER
TERM 23
(BRICK)
GND 7
*
25- PIN
25- PIN
MALE
FEMALE
NOTE
WHEN WIRING RS-422 /485 MULTIDROP CABLES,
REFLECTIONS ON THE TRANSMISSION
LINE CAN BE REDUCED BY CONFIGURING THE
CABLE IN A DAISY CHAIN FASHION AS
SHOWN BELOW.
MASTER CMM SLAVE 1
CPU BUILT-IN PORT CMM SLAVE 2
ALSO IT IS RECOMMENDED TO MAKE ANY
NECESSARY CONNECTIONS INSIDE THE
CABLE CONNECTOR TO BE MOUNTED ON
THE CMM. IT IS NOT RECOMMENDED TO
USE TERMINAL STRIPS OR OTHER TYPES
OF CONNECTORS ALONG THE LENGTH OF
THE TRANSMISSION LINE.
*
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.
J2
J1
SW
CTS
PIN
SD 2
RD 3
5
CTS
GND 7
ISOLATED
REPEATER/
CONVERTER
(BRICK)
25- PIN
25- PIN
MALE
FEMALE
SHIELDED MAKE CONNECTIONS
TWISTED INSIDE D-CONNECTORS
PAIRS
150 OHMS
TO OTHER DEVICES
(MAXIMUM OF 8 DEVICES ON A MULTIDROP)
TERMINATE THE RD (B') SIGNAL ONLY AT END OF MULTIDROP CABLE
PIN
3
RD
2 SD
5
CTS
4
RTS
7 GND
8 DCD
20
DTR
1
SHLD
25- PIN
MALE
a44932
PIN
RD (A')
13
RD (B')
25
SD (A)
9
SD (B)
21
SERIES 90
RTS (A)
10
CMM
RTS (B)
22
PORT
TERM
24
I
GND
7
OR
1 SHLD
2
*
**
25- PIN 25- PIN
MALE FEMALE
SW
J1 J2
CTS
PIN
15 RD (A')
14 RD (B')
16 SD (A)
17 SD (B)
ISOLATED
13 RTS (A)
REPEATER/
12 RTS (B)
CONVERTER
22 TERM
(BRICK)
23 TERM
(USED AS A
7 GND
CONVERTER)
*
150 OHMS
25- PIN 25- PIN
MALE FEMALE
SW ON
J2 J1
PIN
16
RD (A')
17
RD (B')
15
SD (A)
14
SD (B)
ISOLATED
11
RTS (A)
REPEATER/
10
RTS (B)
CONVERTER
19
TERM
(BRICK)
18
TERM
(USED AS A
7
GND
REPEATER)
*
150 OHMS
25- PIN 25- PIN
MALE FEMALE
a45239
SERIES 90
CMM
PORT
1
OR
2
25- PIN
FEMALE
GFK-0356Q