Advantech ULI-234TC Quick Start Manual

Biasing
Bias is provided by 4.7kΩ pull-up/down resistors on
the Data-In lines. This value is adequate for most
applications without termination. If another value is
required, space is provided on the PC for through-hole
resistor placement (R12, R21, R14, and R23).
Biasing application notes are also available on the
website.
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 – 30 V DC
• Input Power: 0.7 Watts
• Wire Range: 12 – 24 AWG
• Tightening Torque: 4 kgf-cm
• Temperature rating of field installed conductors is
105 °C minimum, sized for 60 °C ampacity.
• Use copper wire only.
• Maximum surrounding ambient air temperature: 80 °C
Document Number: 20BB710-10765-00_r4_BB-485OPDR_4423qsg
Recommended Accessories
+ 10-30V DC, 0.7W Power Supply
+ RS-422/RS-485 Cable
www.advantech.com
QUICK START
GUIDE
ULI-234TC
Model: BB-485OPDR
RS-485/422 Repeater, Industrial
www.advantech.com
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