Hardware Installation
ACX 780/781 Installation Guide 3
Controller Dimensions and Weight
Each ACX 780/781 is 26 × 19 × 6 in. (660 × 483 × 152 mm) and weighs
40 lbs (18.2 kg).
Power Requirements
Caution
The ACX 780/781 should receive power from its own independent,
unswitched circuit.
The internal power supply allows an AC supply voltage of 115 V to
230 V without requiring any manual switch or jumper setting.
The ACX 780/781 consumes 75 VA of power at 115/230 VAC.
Cable Limitations
The maximum cable length for all buses is 4,000 ft (1200 m) at
19,200 baud (up to 32 Infinet controllers). You can extend buses beyond
4,000 ft. or put more than 32 Infinet controllers on less than 4,000 ft. by
using the InfiLink 200 amplification module. Or you can use the In-
fiLink 210 amplification module to switch to fiber optic cable and form
more complex configurations.
Note
You must use shielded cables for Infinet to ensure compliance with the
Class A FCC limits and to provide reliable communications.
Cables that form Infinet are 24-gauge, single-twisted-pair, tinned,
shielded copper wire. Use the following cables
1
or their equivalents:
• Brand Rex # H 9002 (single-pair)
• Anixter # 9J2401021 (single-pair plenum cable)
1. You can also use any cables you may already have in place for ACNET or LBUS.
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