AC7 OPTO 22, AC7 Datasheet - Page 4

• Manufacturer Part Number: AC7
• Description: Computers, Interface Cards
• Manufacturer: OPTO 22

Specifications of AC7

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Features: RS232 To RS422 Converter
• Interface: RS-422⁄485
• Module Type: Adapter Card
• Mounting Type: Protective Enclosure
• Voltage, Supply: 115 VAC ± 10 VAC @ 50⁄60 Hz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

WELCOME
WELCOME
OVERVIEW
ABOUT THIS MANUAL
4 AC7A/B User’s Guide
Opto 22’s AC7A/B is an external, standalone, adapter card which converts RS-232 serial communication
to RS-422/485 serial communication. The AC7A/B has optical isolation between its RS-232 port and its
RS-422/485 port, with full transient protection on the RS-422/485 lines. The AC7A/B is an open chassis circuit
board, and is designed to be mounted inside a protective enclosure (protective enclosure not included.)
The converter 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. Only “REV L” boards and above (AC7A) and “Rev C” boards
and above (AC7B), can be used up to 115,200 baud. Earlier revision boards will operate up to 38,400 baud only.
This manual is organized as follows:
•
•
•
•
•
•
Introduction
Installing the AC7A/B for use with Opto 22’s Optomux I/O
Installing the AC7A/B for use with Devices other than Opto 22’s Optomux I/O
Additional Technical Information
Appendix A: AC7A/B Connection Pinout
Product Support
Updated: 01/22/04