CO-485USB
USB to RS-485
CONVERTER
TECHNICAL REFERENCE
Click for more info:
www.eeci.com/co-485usbp.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, Description and Technical Support..... page 1
Set-Up & Testing......................................................... page 3 & 4
Power Supply Shunts................................................. page 5
Trouble-Shooting......................................................... page 5
Connecting to the AR-16 Relay Interface.................... page 6 & 8
Connecting to the ADC-4, ADC-16 and STA-16.......... page 7
Warranty...................................................................... page 9
SPECIFICATIONS
Power Supply....................... Selectable
(Option1) 5VDC (powered from USB port)
(Option2) 6 to 24VDC wall adapter (provides isolation)
(Option3) 5VDC external supply (provides isolation)
Channels.............................. 1 channel, Full Duplex, 4 wire (2 twisted pairs)
Expansion Capability............ EX-8M Expansion card (adds 8 relays, 8 inputs or combinations)
(requires Windows XP service pack 3 up to Windows 8.1 versions)
Computer Interface..............
USB only (Windows ME, 2000, Server 2003 or later (32 and 64 bit versions)
includes Vista, Windows 7, Windows 8.1, Windows 10 and Windows Server
Weight.................................
1.5 ounces
Size...................................... 2.375 inches by 3.1 inches
The CO-485USB connects to any available USB port on a Windows computer or laptop and converts signal levels to
the RS-485 standard. The CO-485USB operates in full duplex mode (4 wire, 2 twisted pairs), transmitting and
receiving at the same time.
24 HOUR TECHNICAL SUPPORT
Technical support for our products is available by calling (349) 349-6000. 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. Calls received during normal business hours are usually returned within minutes.
DESCRIPTION
Page 1
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