B 300
Controlling the detector with the I/O
interface
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Alcatel Vacuum Technology France - ATH 200 User’s Manual
GB 00979 - Edition 05 - March 04
24 V DC Power supply
GND
detector
Pin No
24 V DC power supply
25 If SW1 on P0344 interface board is closed
(upper position)
+24V DC (maximum current 350 mA)
supplied by leak detector
If SW2 is open (lower position)
(+) point for customer external power supply (24 V)
24, 21
If SW2 on P0344 interface board is closed (upper
position)
External ground
If SW2 is open (lower position)
(-) point for customer external power supply