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1594-02 Relay Interface

  
The 1594-02 detects presence of a contact closure to ground on any of up to 96 inputs and provides a serial data stream which provides real time indication of each channel’s status (closure to ground or open). The internal processor sequentially polls up to 96 inputs by a 96 channel multiplexer and provides a continuous serial data stream containing a header code followed by 96 bits of information which are logic one if the corresponding input has a closure to ground and logic zero if the corresponding input is open. A check sum byte follows for error detection. The output data is 9600 baud, no parity, 8 bits, 1 stop at RS232C levels. A 90 - 260 VAC power supply provide DC power to the 1594-02. The unit is housed in a 1 3/4”, rack mount chassis.

 


 1594-02 Relay Interface Front Panel


 1594-02 Relay Interface Rear Panel

Equipment Specifications*
 

Data Characteristics
Output
Data rate
Connector		 RS232C
9.6kB/s, Async
DB9, female
Ext Closure Characteristics  
Type
Closure resistance
Switch after closure
Connector		 Closure to ground
<=200 ohms
<=0.20 sec for system
Terminal Block
Indicators  
ALARM
ACTIVITY
POWER		 Red LED lights if processor quits
Green LED lights when closures present
Green LED lights when power is on
Other
Mechanical
Power		 19 inch standard chassis; 1.75"H X 8.5"D
90 - 260 VAC, 47 - 60 Hz, 10W

*Specifications subject to change without notice