Rockwell Automation 1747-AIC SLC 500 Programmable Controller Isolated Link Coupler - Manual (Page 2)

Publication 1747-IN062A-MU-P - April 2003
2 SLC ® 500 Programmable Controller Isolated Link Coupler
DH-485 Connections Connecting the Communication Cable to the Link Coupler
Attach the terminal block of the link coupler to the Belden #3106A or
#9842 cable as shown below.
Grounding and Terminating the DH-485 Network
Only one of the Link Couplers at the end of the link must have
Terminals 1 and 2 of the network connector jumpered together.
Link couplers at both ends of the network must have Terminals 5 and
6 of the link connectors jumpered together.
Use Belden #9842 shielded, twisted-pair cable.
Belden #3106A Belden #9842
For this wire/pair Connect this wire To this terminal For this wire/pair Connect this wire To this terminal
Shield/Drain Non-jacketed 2 - Shield Shield/Drain Non-jacketed 2 - Shield
Blue Blue 3 - Common Blue/White White with Blue Stripe No connection - cut back
Blue with White Stripe 3 - Common
White/Orange White with Orange Stripe 4 - Data B White/Orange White with Orange Stripe 4 - Data B
Orange with White Stripe 5 - Data A Orange with White Stripe 5 - Data A
Belden #3106A or #9842
Shrink Tubing Recommended
Orange with White Stipes
White with Orange Stipes
Blue (#3106A) or Blue with White Stripes (#9842) Drain Wire
to Previous Device
to Successive Device
6 Termination
5 A
4 B
3 Common
2 Shield
1 Chassis Ground
6 Termination
5 A
4 B
3 Common
2 Shield
1 Chassis Ground
Multiple Connections Single Connection