B&B Electronics 485OPDRI-PH User Manual
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ILinx 485OPDRI-PH Isolated Repeater
This Quick Start Guide
Additional Items Required but not included
o A 10 to 48 VDC Power Supply. Repeater draws
2.3W Max.
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1. Refer to Nonincendive Field Wiring Apparatus
Control Drawing. for important information.
2. Power, Input / output (I/O) wiring for the end use
enclosure must be in accordance with Class 1
Division 2 wiring methods (Article 501.10(B) of the
National Electric Code, NFPA 70) and in
accordance with the local authority having
jurisdiction.
3. Maximum ambient air temperature 85°C.
4. Temperature rating of field installed conductors
105°C. Use Copper Wire Only.
5. These devices must be installed in end use
enclosure suitable for the location.
6. WARNING – EXPLOSION HAZARD
SUBSTITUTION OF COMPONENTS MAY IMPAIR
SUITABILITY FOR CLASS 1, DIVISION 2.
7. WARNING – EXPLOSION HAZARD: DO NOT
DISCONNECT EQUIPMENT UNLESS POWER
HAS BEEN SWITCHED OFF OR THE AREA IS
KNOWN TO BE NON-HAZARDOUS.
8. WARNING – THIS APPARATUS IS SUITABLE
FOR USE IN CLASS 1 DIVISION 2, GROUPS A,
B, C, AND D OR NONHAZARDOUS LOCATIONS
ONLY.
Quick Start Guide
ILinx 485OPDRI-PH
Triple Isolated RS-422/485
Repeater
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A
Power LED
Red, ON When Power Applied
B
Data LEDs
Green. LEDs Flash When Data is on
Port. C 422/485 TB
5 Position, Removable
D
Ground Lug
Chassis Ground to Earth Ground
E
DIP Switch
Used to Configure
F
Power TB
2 Position, Removable
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SWITCH POSITION 8 IS NOT USED
Highlighted settings indicate factory default.
Switch functions are identical for each port.
Communications Mode
Switch
1 2 3 4
RS-485
2-Wire
Half Duplex
ON
ON
ON
ON
RS-485
4-Wire
Full Duplex
ON
OFF
OFF
OFF
RS-422
Full Duplex
OFF
OFF
OFF
OFF
Built-in Termination Resistor
Switch 5
Use the 120Ω Built-in Termination
ON
Use External or No Termination
OFF
Built-in Transmit Bias Resistor
Switch 6
Use External or No Bias Resistor
ON
Use the 1.2K Ω Transmit Bias Resistor
OFF
Built-in Receive Bias Resistor
Switch 7
Use External or No Bias Resistor
ON
Use the 1.2K Ω Receive Bias Resistor
OFF
For an explanation of RS-485 termination and biasing
requirements, refer to B&B Electronics’ RS-485
application note. This publication can be downloaded
at: www.bb-elec.com
International Headquarters: 815-433-5100 www.bb-elec.com
Documentation Number – p/n 8932r001 485OPDRI-PH-1712qsg
©2010 B&B Electronics Manufacturing Company
European Headquarters:
+353 91 792444
www.bb-europe.com
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1. Connect Power. Power Requirements: 10 to 48 VDC,
2.3W Maximum.
2. The terminal block will accept 28 to 12 AWG Wire.
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RS-422 / 4-Wire RS-485
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1. During normal operation, the Power LED
should be illuminated.
2. When data is sent or received on either port,
the corresponding Data LED should flash.
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2-Wire RS-485
See Section One for wire recommendation.
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1. It is recommended that the chassis be grounded.
2. Connect a grounding wire from the ground lug to a good
source of Earth Ground.
Documentation Number – p/n 8932r001 485OPDRI-PH-1712qsg
©2010 B&B Electronics Manufacturing Company
International Headquarters: 815-433-5100 www.bb-elec.com
European Headquarters:
+353 91 792444
www.bb-europe.com
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