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DATA SHEET
Form 468-010131
Description
The AC24AT is an RS-422/485 adapter card that plugs directly into the IBM PC bus and provides up to 4,000 VAC isolation
between the PC bus and the communications link. The AC24AT is also transient protected, features bi-directional handshake
lines for RTS and CTS, and can drive up to 100 devices on a multidrop network. The AC24AT adapter card can be jumpered for
operation as COM1, COM2, COM3, or COM4 and offers full hardware and software compatibility with IBM AT, PS/2 Model 30
286, and compatible computers.
The AC24AT operates as a full duplex device with transmission speeds up to 38,400 baud for distances up to 5,000 feet using
two twisted pairs and a ground wire.
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • www.opto22.com
Inside Sales: (800) 321-OPTO • Product Support: (800) TEK-OPTO • (951) 695-3080 • Fax: (951) 695-3017 • E-mail: sales@opto22.com
INTERFACES
TRADITIONAL
PC ADAPTER CARD
Part
Number
AC24AT
ISA Bus Serial Port RS422/485, Isolated
page 1/6
Description
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Summary of Contents for OPTO 22 AC24AT
- Page 1 PC bus and the communications link. The AC24AT is also transient protected, features bi-directional handshake lines for RTS and CTS, and can drive up to 100 devices on a multidrop network. The AC24AT adapter card can be jumpered for operation as COM1, COM2, COM3, or COM4 and offers full hardware and software compatibility with IBM AT, PS/2 Model 30 286, and compatible computers.
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Page 2: Specifications
Dimensions Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • www.opto22.com Inside Sales: (800) 321-OPTO • Product Support: (800) TEK-OPTO • (951) 695-3080 • Fax: (951) 695-3017 • E-mail: sales@opto22.com... -
Page 3: Jumper Installation
Loop-back Connector Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • www.opto22.com Inside Sales: (800) 321-OPTO • Product Support: (800) TEK-OPTO • (951) 695-3080 • Fax: (951) 695-3017 • E-mail: sales@opto22.com... -
Page 4: Communication Jumpers
4-wire mode. A jumper installed sets the card into 2-wire mode. Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • www.opto22.com Inside Sales: (800) 321-OPTO • Product Support: (800) TEK-OPTO • (951) 695-3080 • Fax: (951) 695-3017 • E-mail: sales@opto22.com... -
Page 5: Address Jumpers
1111 Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • www.opto22.com Inside Sales: (800) 321-OPTO • Product Support: (800) TEK-OPTO • (951) 695-3080 • Fax: (951) 695-3017 • E-mail: sales@opto22.com... -
Page 6: Data Sheet
The figure below shows the normal jumper arrangement for jumper positions B1 through B7 and C1 through C7 on the AC24AT and B1 through B8 and C1 through C7 on the AC422AT. This arrangement is suitable if the adapter card is being used to communicate with an OPTOMUX network. -
Page 7: Product Support
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • www.opto22.com Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • www.opto22.com Inside Sales: (800) 321-OPTO •...
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