Connection to the A terminals is optional. They can be used as shown on the next page.

The Terminal Block with box terminals has 25 terminals for each module, each of which

accommodates one AWG #14 (avg 2.1mm2 cross section) to AWG #22 (avg 0.36mm2 cross

section) wire, or two wires up to AWG #18 (avg. 0.86mm2 cross section). When an external

jumper is used, the wire capacity is reduced from AWG #14 (2.10mm2) to AWG #16

(1.32mm2).

The I/O Terminal Block with barrier terminals has 18 terminals per module. Each terminal

can accommodate one or two wires up to AWG #14 (avg 2.1mm2 cross section).

The I/O Terminal Block with Connectors has one 20-pin male connector per module. The

mating connector is Amp part number 178289–8. Any tin-plated contact in the AMP D–3000

series can be used with the connector (Amp part number 1–175217–5 for high contact force

receptacle for 20–24 gauge (0.20–0.56mm2) wires), 1–175218–5 for high contact force

receptacle for 16–20 gauge (0.56–1.42mm2)).