Allen-Bradley 1747-AIC

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.

You must install a link coupler (1747-AIC) for each node on the network. If you plan to add nodes later, provide additional link couplers during the initial installation to avoid recabling after the network is in operation. The maximum length of the communication cable is 1219 m (4000 ft). This is the total cable distance from the first node to the last node on the network.

In Series A 1747-AIC, terminal 5 was called DATA B and terminal 4 was called DATA A. In this case, use terminal numbers only and ignore signal names DATA B and DATA A. The internal circuitry of the Series A is the same as Series B.

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.