Documentation Number – p/n 8931r002 485DRCI-PH-3512qsg
©2011 B&B Electronics Manufacturing Company
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1. Refer to the 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.
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ILinx 485DRCI-PH Serial Converter
This Quick Start Guide
Additional Items Required but not included
o
A 10 to 48 VDC Power Supply (Converter
draws 1.9W Max).
Put
Quick Start Guide
ILinx 485DRCI-PH
Triple Isolated RS-232 to
RS-422/485 Converter
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SWITCH POSITION 8 IS NOT USED
Highlighted settings indicate factory default.
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
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Front Panel
Back Panel
Front and Back Panel
A
Power LED
Red, ON When Power Applied
B
DB9 Female RS-232 (Wired DCE)
C
422/485 TB
5 Position, Removable
D
Data LEDs
Green. LEDs Flash When Data is on
Port.
E
Ground Lug
Chassis Ground to Earth Ground
F
DIP Switch
Used to Configure
G
Power TB
2 Position, Removable
DB9 Pin-out
