EECI AR-1 Technical Reference

AR-1 AR-2
RELAY INTERFACE
TECHNICAL REFERENCE
Click for more info: www.eeci.com/ar-2p.htm
PHONE...................
(937) 349-6000
ORDERS................
(800) 842-7714
TECH SUPPORT... (937) 349-6000
E-mail.....................
sales@eeci.com
www.eeci.com
TABLE OF CONTENTS
Specifications.......................................
Technical Support and Warranty..........
Connection Diagram............................. page 2
Power Supply Requirements................. page 2
RS-232 Connector Pin-outs.................. pages 2 & 3
Set-up and Testing...............................
Mounting............................................... page 3
Troubleshooting...................................
Control Software................................... page 4
Programming Examples......................... page 5 & 6
Connection to a Gate Relay or Alarm.... page 6
SPECIFICATIONS
Power Supply....................... 12 volts DC (100ma)
Relays.................................. 2 (1 relay with the AR-1)
Relay Contacts..................... SPDT
Contact Rating (AC)............. 16 amp 250 VAC (12 amp with the AR-1)
Contact Rating (DC)............. 16 amp 30 VDC (12 amp with the AR-1)
Contact Rating (tungsten).... TV-5 120 VAC
Contact Rating (horsepower) 1/2 HP 120 VAC or 1 HP 240 VAC
Weight................................. 4 ounces
Size...................................... 2.375 inches by 3 inches (AR-1: 1.375" by 3")
The AR-2 relay interface provides software control of (2) relays which are included and mounted on the AR-2 circuit
assembly. The relays are energized or de-energized by using the RS-232 control signals DTR and RTS. The AR-2
relay interface is useful when only 1 or 2 relays are required. The AR-2 is for use with RS-232 and is not expandable.
A terminal block is provided for connection of the power supply and relay contacts. RS-232 connections are made
via a DB-9 connector which is pin to pin compatible with the standard RS-232 nine pin connector.
TECHNICAL SUPPORT
Technical support for our products is available by calling (937) 349-6000. Please have your AR-2 connected to your
computer and have your phone at this location. If a technical adviser is not available, please leave your name, phone
number and a time that you can be reached. Your call will be returned as soon as possible and within 8 hours.
WARRANTY AND CARE OF THE AR-2
The AR-2 Relay Interface is warranted against factory defects for a period of 90 days from the date of purchase. The
AR-2 has proven to be extremely reliable in actual operation during field tests. We recommend that the AR-2 and
associated hardware be installed in a suitable enclosure (4 mounting holes are provided on the circuit board).
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DESCRIPTION
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