U8/12-1M
Date:
05/03/12
Manual - Appendix
Page A1
Appendix: Details and operation
The following chapter is used to describe special details of the
U8/12-1M
system with 8 channels (+/-15V) for unidirectional transmission.
a)
Housing and connectors / switches
Fig. a.1 shows the back (left) and front (right) side of the transmitter with
connectors and switches. It is set up in a shielded metal case made to be
used inside an absorber lined chamber. It has integrated filters. The signals
can be connected directly to the BNC plugs at the back. To avoid
interferences or other EMC issues, always use BNC cables as short as
possible to connect your DUT.
•
Signal connectors BNC (
In1 .. 8: +/-15V 1M
Ω
||10pF
)
•
Power push button with control LED (
Pwr On/Off
)
•
Battery information LED (
Info
)
•
Charge plug (
Charge
)
•
Optical connector FSMA (
Optical Out
)
•
PC
USB connector, used for internal programming and firmware
updates, not necessary for customer.
The housing of the BNC plugs is connected to the aluminum case, which is
connected to the circuit GND. This should be taken into account during the
test (possible ground loops, short circuits, parasitics to GND-plane!).
mk-messtechnik GmbH - Zeppelinstr. 1 - 73274 Notzingen - Tel: +(49) 7021-9566925
Fig. a.1: transmitter with connectors
Charge
Pwr Info
On/Off
Optical
Out
PC
In 1
± 15 V 1 MΩ / 10pF
In 2
In 3
In 4
In 5
In 6
In 7
In 8
Transmitter
The BNC housings
have the same
potential as the
aluminum case.
