|Tranzview Smatlab 8 Relay Output/8 Photo Isolator Input Board|
|Board for remote digital I/O over your ethernet
Solution for Your Developing DAQ Application System
OUTPUT/8PHOTO ISOLATOR INPUT BOARD
The 8 channel relay output / isolator input board provides relay output function and isolator input function. The relay output part provides 8 Single Pole Double Throw (SPDT) relays to drive 8 digital output lines. Each relay channel can be used to control ON/OFF of external devices, to drive external high power relays, to activate alarmsÂ¡Ketc. There are 8 LED indicators correspond to 8 relays, when relay is energized, the corresponding LED is light. The +12V power source is user selectable from internal PC bus or external power supplier.
isolator input part provides 8 Photo isolated Digital Input
Channel, which allow the input signals to be completely floated
and prevent the ground loop. There are 8 LED indicators corresponds to
8 input channels, when the input channel is activated at high stat, the
corresponding LED is light. The power source is user selectable from
internal PC bus or external power supplier.
The features of 8 Channel Relay Output / Isolator Input Board are :
Relay Output Function.
#LED indicates when relay is energized.
#Internal and external power selectable.
#Built in screw terminals for easy writing.
#The Normal Open (NO), Normal Close (NC), and Common contacts (COM) of each relay are brought out to the screw connector.
#Max contact rating: 150V/DC 2amp, 125V/AC 2amp.
#Breakdown voltage: AC/DC 500V minimum.
#Relay on time: 3 ms typical.
#Relay off time: 2 ms typical.
#Isolation resistance: 100 ms typical.
#Life expectancy: 5 million operation at full load.
#Screw terminal: accept #22 to #12 awg wire.
Isolator Input Function
For Jumper And Adjust VR
the threshold voltage of Photo Isolator, adjust VR which is on the
PCB to get the desired threshold voltage. The external input
voltage which is over the threshold voltage will be recognized as
HIGH (1) and the relative led will be light. Otherwise that will be
LOW (0) and led be off.
Technical data - Isolated input Output and Relay Output