AC24AT OPTO 22, AC24AT Datasheet - Page 3
![Computers, Interface Cards](/photos/27/51/275191/4266954_sml.jpg)
AC24AT
Manufacturer Part Number
AC24AT
Description
Computers, Interface Cards
Manufacturer
OPTO 22
Type
ISAr
Datasheet
1.AC24AT.pdf
(7 pages)
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: (951) 695-3000 • (800) 321-OPTO • Fax: (951) 695-3095 • 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 • (951) 695-3080 • Fax: (951) 695-3017 • E-mail: sales@opto22.com
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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