9 External trigger
10 Power on switch and fuse
11 Mains selector 115V / 230V
12 Fuse of the high voltage power supply
13 Parallel interface IEEE
14 USB Serial interface
15 Remote control connector
16 FAIL 1 / FAIL 2 connector
9 External trigger (BNC plug)
Trigger input for a pulse release (5-15V positive trigger).
10 Power on switch
The switch is part of the mains filter. Mains fuses are part of the filter. (230V / 1A and 115V / 2A)
11 Mains selector
Selection of 115V / 230V
12 Fuse of the high voltage power supply
The high voltage power supply is protected by this fuse „F3“. In case that no high voltage is generated but the
control unit works properly this fuse shall be checked.
13 Parallel interface GPIB / IEEE 488
IEEE 488 interface with IEEE connector
14 USB Serial interface
USB interface “USB B” connector. For data transfer a USB interface is available. The internal RS 232 interface
is converted to USB standard. Therefore the user must set the same Baud rate in the device and control
software.
Using the USB interface the user can have emc problems during EMC tests Our experiences says, that usually
the computer USB port is disturbed by interference’s. Therefore a high quality USB cable (USB 2.0 standard)
must be used.
15 Remote control connector CN
External coupling devices are controlled via this remote control connector.
16 Fail detection FAIL 1 EUT control (TEST STOP)
Grounding this input will cause a complete stop of the running test procedure. (+15V to ground) The test must
be completely restarted.
Fail detection FAIL 2 EUT control (TEST PAUSE)
Grounding this input will cause a break for the running test procedure (+15V to ground).The test will be
continued when the input is disconnected from ground.
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