AC38B OPTO 22, AC38B Datasheet - Page 9

• Manufacturer Part Number: AC38B
• Description: Computers, Interface Cards
• Manufacturer: OPTO 22

Specifications of AC38B

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Features: High-Speed RS485 Repeater, 220VAC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DATA SHEET
Form 519-100915
RS-485 CONNECTION
The AC38 has two RS-485 ports; the host port and the remote port. The remote port is 2-wire hook up only; the host port can be 2-wire or
4-wire. When the AC38 is being used to repeat a Mistic remote communications link, the host port will be wired for 2-wire operation.
The IRQ line only repeats from the remote port to the host port.
The following diagrams show recommended and alternate wiring for host 4-wire and 2-wire connections and for remote 2-wire connections.
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: [phone] • (800) 321-OPTO • Fax: [phone] • www.opto22.com
Recommended Remote RS-485 2-Wire Connection
Recommended Host RS-485 4-Wire Connection
Recommended Host RS-485 2-Wire Connection
Inside Sales: (800) 321-OPTO • Product Support: (800)TEK-OPTO • [phone] • Fax: [phone] • E-mail: [e-mail]
ADAPTER CARDS
Alternate Remote RS-485 2-Wire Connection
Alternate Host RS-485 4-Wire Connection
Alternate Host RS-485 2-Wire Connection
TRADITIONAL
STANDALONE
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