ATEN IC485AI Instruction Manual download pdf (Page 15)

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Installation

1. Make sure that all the devices you will be connecting up are

powered off.

2. Set each IC-485AI’s configuration switches according to the

information provided in the Switch Configuration and

Operating Modes sections.

3. Plug the IC-485AI’s DB-25 female connector into the

computer’s RS-232C port.

4. Connect the IC-485AI units to each other.

a) Use two or four wire twisted pair cable in a reverse or

straight through configuration according to the

information provided in the Switch Configuration and

Operating Modes sections.

Note: 1. When tightening the terminal connector screws it is

recommended to use a Phillips PH1 Screwdriver.

2. Over-tightening the terminal connector screws may

result in damage to your IC-485AI and difficulty

loosening the screws.

b) See p.17 for the Terminal Block pin assignments.

5. Power on the computers. The units are now ready for

operation.

Note: When connecting units over long distances, it may be

necessary to install 120Ω resistors. See the diagrams

on the next page for details.

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ATEN IC485AI Instruction Manual Page 15