Measurement Computing WaveBook rev.3.0 - Manual (Page 56)

3-24 WBK16, WBK Expansion Options, ch03B 6-23-99 WaveBook User’s Manual
Hardware Setup
Configuration
The figure shows the WBK16 board layout for locating user-accessible components. You may need to refer
to this figure to locate components referenced in the text. The jumper positions are not user functions, and
are only shown for reference in case they are dislodged.
DB9 DB9 DB9 DB9 DB9 DB9 DB9 DB9
CH1
Jumper
(Default)
Low-Pass Filter
SIP Resistor Bank
(2 per channel)
Filters
A B
CH1 CH5 CH3 CH7 CH2 CH6 CH4 CH8
RH
RA
RH
RA
RH
RA
RH
RA
RH
RA
RH
RA
RH
RA
RH
RA
Filters
A B
Filters
A B
Filters
A B
Filters
A B
Filters
A B
Filters
A B
Filters
A B
Included
CN-115
Header
(1 per channel)
CH2 CH3 CH4
WBK16 Board Layout
CH5 CH6 CH7 CH8 LEDs
- Active
- Ready
- Power
1 1
Jumper
(Default)
Expansion
Signal Out Expansion
Signal In
Expansion
Control Out
Expansion
Control In
Power In
Fuse
Power Switch
DC/DC CONVERTER
Power Out
DB15
FAN
Reserved for
future options
DB15 BNC BNC
DC/DC CONVERTER
DC/DC CONVERTER
Configuration options on WBK16 include:
• Customization of low-pass filter frequencies using resistor networks
• Bridge completion resistor installation
• Shunt calibration resistor installation
CAUTION CAUTION CAUTION CAUTION
Be careful to avoid component damage while WBK16 enclosure is open. Always
remove bridge completion headers (CN-115) from the unit before soldering resistors
in the headers.
WBK16 Fan
A fan draws air through enclosure vents and exhausts it through the bottom of the
WBK16. To maintain sufficient cooling, it is important to keep the fan and vents free
of obstruction.
Note: The partial blocking of vents by splice plates (in stacked assemblies) does not
jeopardize unit cooling.