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8

Appendix A

Specifications

Transmission Line:

Dual multi-mode optical cable, optimized to 
work with 62.5/125 micron fiber-wavelength 
850nm

RS-485 Interface:

DB-25F, DB-25M or Terminal Block 
DB-25: Pin 2, data I/O - ;Pin 14, Data I/O +

Transmission Mode:

Asynchronous, half duplex

Fiber Interface:

Dual ST connectors

Speed:

0-115Kbps

Range:

Up to 1.25 miles (2km)

Power Budget:

12dB with 62.5/125 fiber

Power:

External Universal Power Supply(100-250 
VAC)

Compliance:

FCC Part 15, CE

Temperature:

0-50 C

Humidity:

5-95 percent, non-condensing

Dimensions:

3.55” x 2.1” x .8”

7

Appendix B

Pin Out Configurations

DB-25 Pin # 

RS-485 Data

2.......................................................................data I/O -

14......................................................................data I/O +

Terminal Block

RS-485 Data

+......................................................................data I/O -
-.......................................................................data I/O +

Fiber end is equipped with ST type fiber optic connectors

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