Quick Start Guide

Troubleshooting
Fast, Easy Answers...
Q. What type of cable do I need for RS-
422/485?
A. Category 5 cable is available as shielded
twisted pair (STP) as well as unshielded
twisted pair (UTP) and generally exceeds the
recommendations for RS-422 making it an
excellent choice for RS-422 and RS-485 systems.
Q. How do I wire the 485OP for
2-wire?
A. Make sure to externally jump TDA to RDA and
TDB to RDB.
Q. Do I have to run a signal ground on
the 485OP?
A. Yes, all of our Optically Isolated devices
require a signal ground.
UL Installation Information
Underwriters Laboratories Conditions of
Acceptability – When installed in the end-use
equipment, consideration should be given to the
following:
1. The wiring terminals are suitable for factory
wiring only.
2. This device is to be mounted in a suitable
enclosure in the end-product.
3. This device is suitable for operation at a
maximum surrounding air temperature as
described in the documentation.
4. These devices are intended for use in a
pollution degree 2 environment.
• InputVoltage:10–14VDC
• InputPower:1.0Watt
• WireRange:22–14AWG
• TighteningTorque:0.5Nm
• Temperatureratingofeldinstalled
conductors is 105 C minimum, sized for 60 C
ampacity.
• UsecopperwireonlyMaximumsurrounding
ambient air temperature 55 C.
Fast and easy on the web: www.bb-elec.com
Optically isolated
RS-422/485 Repeater
485OP
Document number – pn8679_R002_485OP_0113qsg
© 2013 B&B Electronics Manufacturing Company
1-888-948-2248 | Europe: [phone]
www.bb-elec.com
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Please double check
Step 3.
You can also use your
smart phone to access
complete documentation
on our website. Simply
scan code to the right.
485OP
12VDCWallPowerSupply
with Striopped and Tinned Leads
First Things First...
Before you begin, be sure you have
the following:
707 Dayton Road | PO Box 1040 | Ottawa, IL 61350
Phone: [phone] | Fax: [phone]
www.bb-elec.com | E-mail: [e-mail]
•
•
Quick
Start
Guide
ESR35
Steel DIN mounting rail
http://www.bb-elec.com/
Products/Serial-Connectivity/
Isolators-Repeaters/Optically-
Isolated-Repeaters.aspx