AC24AT OPTO 22, AC24AT Datasheet - Page 3

• Manufacturer Part Number: AC24AT
• Description: Computers, Interface Cards
• Manufacturer: OPTO 22
• Type: ISAr

Specifications of AC24AT

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Features: Serial Port RS-422/485, Isolated
• Baud Rate: 38400 Baud
• Contact Rating: 250 mA @ 5 VDC, 150 mA @ ± 12 VDC
• Dimensions: 13.45 in. L
• Distance: 5000 ft.
• Indicator: Transmit, Receive, RTS, and CTS
• Interface: RS-422⁄485 (9-Pin, D-Shell Female Connector)
• Isolation Voltage: 4000 VAC
• Temperature, Operating: 0 to 60 °C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: Computer

DATA SHEET
Form 468-010131
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Phone: [phone] • (800) 321-OPTO • Fax: [phone] • www.opto22.com
Jumper Installation
communications jumpers.
configuration of the COM ports in the host PC. Refer to the following table for jumper settings for the various COM ports.
Diagnostics program if a loop-back connector is used. The following is a diagram of a loop-back connector for use in
diagnosing the adapter card.
Configuration for AC24AT and AC422AT
Before installing your adapter card, configure your board by selecting the appropriate address, interrupt, and
These adapter cards can be configured as COM1 through COM4. Select which COM port is to be used based on the current
Compatibility
The AC422AT and AC24AT models use the same UART used in the AT model computers.
The RS-422/485 adapter cards are seen by the computer as a standard serial port and will pass the IBM Advanced
Inside Sales: (800) 321-OPTO • Product Support: (800) TEK-OPTO • [phone] • Fax: [phone] • E-mail: [e-mail]
AC422AT
AC24AT
COM2
COM3
COM4
COM1
Address
3F8 Hex
2F8 Hex
348 Hex
340 Hex
Loop-back Connector
IRQ
4
3
2
5
Jumpers Installed
Group A
3,4,5,7
None
4,5,7
8
INTERFACES
Jumpers
PC ADAPTER CARD
COM2
COM1
IRQ2
IRQ5
IRQ
TRADITIONAL
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