Rockwell Automation 1747-L40 SLC 500 Fixed Hardware Style - Manual (Page 109)

Appendix A
Setting Up the DH-485 Network
A–4
The isolated link coupler (1747–AIC) is used to connect SLC 500 family
devices to the DH–485 network (as shown on page A–5). The coupler
provides a 6–position removable terminal block for connection to the
DH–485 communication cable.
Network connections for the SLC 500 processor are provided by the Catalog
Number 1747–C11, 304.8 mm (12 in.) cable supplied with the link coupler.
Network connections for peripheral devices, such as the Personal Interface
Converter (1747–PIC), Data Table Access Module (1747–DTAM–E), or
Hand–Held Terminal (1747–PT1) are provided by the standard Catalog
Number 1747–C10 1.8 m (6 ft) cable supplied with each of those devices.
To protect connected devices, the coupler provides 1500 VDC isolation
between the communications cable and the attached SLC 500 controller and
peripheral devices (PIC, DTAM, or HHT).
The isolated link coupler can also be used to provide connectivity between a
peripheral device (APS and PIC, HHT, or DTAM) for distances greater than
1.8 m (6 ft) up to a maximum of 1219 m (4000 ft). Below is an example of a
“remote” connection between a computer running APS and an SLC 500
processor.
PIC >1.8 m (6 ft)
+24VDC
APS
1747-AIC 1747-AIC
1747-C11
1747-C10
1747-C10
NP1
NP1 ➀ provides +24 VDC for the
1747-AIC.
➀ You can also use an NP2 desktop model.
1747-AIC Isolated Link
Coupler for DH-485