DEWESOFT SIRIUS Series

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SIRIUS

® 

TECHNICAL REFERENCE MANUAL 

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5.7.1. General counter speciﬁcations 

Counter 

Timebase 

102.4 MHz 

Time base accuracy Typical 

5 ppm, Max: 20 ppm 

Max. Bandwidth 

10 MHz 

Input Filter 

500 ns, 1 μs, 2 μs, 4 μs, 5 μs and 7.5 μs 

Input Level Compatibility 

TTL (Low: <0.8 V, High >2 V) 

Input Impedance 

100 kΩ pull-up to +3.3 V 

Input Protection 

±25 Volt continuous 

Alarm output 

Open collector, max. 100 mA / 30 Volt 

Sensor supply 

5 V / 100 mA; 12 V / 50 mA 

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Warning 

Be careful with voltages >25 VAC or >35 VDC! These voltages are already high enough in order to                  

get a perilous electric shock by touching the wiring. 

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Caution 

GND of the counter input is connected to the GND of the analog channel. 

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Caution 

For ACC+, CHG+ channels GND of the counter input is connected via a 50 Ω resistor to In- of the                    

analog channel. 

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SIRIUS

V20-1 146 / 336  

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