About Si-W509 I/O Module - Protech Systems SI-W509 User Manual

2.4 About SI-W509 I/O Module

1. Common Specification of SI-W509 Series
Communication Interface:
RS-485 (3-wire) to Host
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Speed: 9600, 19200, 38400, 115200 bps
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Maximum Communication Distance: 4000 feet (1.2km)
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Power and communication LED Indicator
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 PWR: Power indicator with Green LED
 R/W: Data Read/Write indicator with Orange LED
 ERR: Error indicator with Red LED
 Modbus: Modbus communication indicator with Green LED
Up to 256 I/O modules per serial port
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Power Requirement
Unregulated +9 ~ +50V DC
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Mechanical
Case: ABS+PC
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Plug-In Screw: Strip Length : 6~7mm
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Suitable Electric Wire: AWG 14~28
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Environment:
EMI: FCC Class A and CE
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Operation Temperature: -25°C ~ 75°C (-13°F ~ 167°F)
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Storage Temperature: -40°C ~ 85°C (-40°F ~ 185°F)
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Humidity: 20% ~ 90%
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SI-W509 SERIES USER MANUAL
Chapter 2 Getting Started
Page: 2-6