RS-485 pull-high / pull-low and termination resistor signal conditioner module.  Improves RS-485 signal by reducing noise in RS-485 signal, supports operating temperatures from -25 °C ~ +75 °C (-13F ~ 167F).

SG-785 - RS-485 Pull-high/pull-low Termination Resistors Module

RS-485 pull-high / pull-low and termination resistor signal conditioner module. Improves RS-485 signal by reducing noise in RS-485 signal, supports operating temperatures from -25 °C ~ +75 °C (-13F ~ 167F).

  Price:  $59.00  

Features

Application Image SG-785

The SG-785 is an optional module that is used to improve the communication of the RS-485 network. It provides switch selectable pull-high and pull-low resistors on the RS-485 network. It also has 15-step switch selectable termination resistor such that the user can select a proper termination resistor to be connected to the RS-485 network easily.

  • Switch selectable pull-high/pull-low resistors
  • 15-step switch selectable termination resistor
  • LED Indicator for Power/ Termination
  • DIN-Rail mountable

Applications

RS-485 signal pull-high/pull-low and long distance communication termination resistor setting.

Specifications

Interface RS-485
Pull-high/pull-low Resistance 1k ohm
Termination Resistance 15 steps, 65 ~ 560 ohm
LED Display 1 red LED as power indicator, 1 green LED as termination indicator
Power
Input Range 10 ~ 30 VDC
Power Consumption 0.5 W
Environment
Operating Temperature -25 °C ~ +75 °C
Storage Temperature -40 °C ~ +80 °C
Humidity 5 ~ 95% RH, Non-condensing

Switch Setting

SW1 SW2 SW3 SW4 Termination Resistance (ohm)
ON ON ON ON 65
ON ON ON OFF 74
ON ON OFF ON 76
ON OFF ON ON 81
ON OFF OFF ON 99
ON OFF ON OFF 96
ON ON OFF OFF 88
ON OFF OFF OFF 120
OFF ON ON ON 144
OFF ON ON OFF 193
OFF ON OFF ON 207
OFF ON OFF OFF 330
OFF OFF ON ON 256
OFF OFF ON OFF 470
OFF OFF OFF ON 560

 

SW5 SW6 Termination Resistance (ohm)
ON OFF Add a pull high resistor to D+ line
OFF ON Add a pull low resistor to D- line
ON ON Add a pull high resistor to D+ line and add a pull low resistor to D- line

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ICP DAS USA,Inc.