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CT/CR-8001     Contact Closure (1 Channel)    Click for larger image.
For Contact Closure or Status Monitoring Applications  

   Fiber Optic Contact Closure Transmitter Application


The LiteLink CT/CR-8001 system consists of the CT-8001 transmitter and CR-8001 receiver. Both units utilize digital encoding techniques to transmit and receive one contact closure over a single optical fiber conductor.  For an 8- channel version see the CT/CR-7008.

The CT-8001 may be activated by dry contacts or TTL signals and the CR-8001 will reproduce these inputs as isolated output contact closures corresponding to the respective input signal. All inputs are transient protected against excessive surges present on the signal and power leads. The unit is completely fail-safe in that a loss of operating power or a broken fiber will force all contacts to the open condition.
 
Specifications Important Features
Number of Channels One     Low Cost
Transmitter Input  Dry Contact Closure or TTL   Signal & Power & Link
    Indicators
Tx Input Impedance  3 K Ohms maximum   Multimode & Single-mode
    version
Receiver Output  Relay Contact Closure   Stand-alone, DIN or  Rack
    Mountable (same unit)
Output Contact Switching A  0.5 A @ 125 VAC
  (62.5VA)
 1.0 A @ 24 VDC
Output Contact Resistance 100 Milliohms maximum  
Speed of Response  10 ms maximum  
Operating Wavelength 850, 1310 or 1550nm    
Optical Connectors ST (multimode)
FCPC (single-mode)
   
Optical Loss Budget  0-10 dB (multimode),
 0-12 dB (single-mode)
   
Signal Connector  Removable Terminal Block
Power Requirements  11-24 VAC/DC @150mA
Operating Temperature -35 to +75 degrees C
Humidity <95% non-condensing    
MTBF ( per MIL HBK 217D) >120,000 hours    
Physical Size  5.0 x 3.0 x 1.0"
127mm x 76mm x 25.4mm
   

Note all specifications are subject to change without notice

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