Measurement Computing WBK Options - Manual (Page 164)

WBK30, Memory Options 988296 WBK30, pg. 1
WBK30 WaveBook Memory Options
Important Notice for WaveBook/516E Users!
For the WaveBook/516E, WBK30 option cards are only to be installed or removed at the
factory. If you desire to remove or add a card to WaveBook/516E, contact the factory or
your service representative.
Description
P1
connects to
J101 in WaveBook
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
8 MB
DRAM
Memory
Controller
Acquired data
Data to PC
WBK30 Block Diagram
The WBK30 is a DRAM-based memory board that installs inside a WaveBook. There are three models of
WBK30 available; each significantly increases the capacity of WaveBook's standard data buffer of
64 K samples. Capacities are as follows:
• WBK30/16—16 MB
• WBK30/64—64 MB
• WBK30/128—128 MB
Benefits of using the larger and enhanced data buffer include:
• The WBK30 Pre-Trigger Mode compensates for a slow connection, slow disk-drive, or limited
memory in the host PC. In addition, there is a reduction of the host computer’s CPU load during
pre-trigger acquisition. This reduction is obtained by internal buffer management.
• The WBK30 Overflow Protection mode prevents data loss when an acquisition is stopped
(deliberately, or due to buffer overflow). On disarm, data in WBK30 is preserved and transferred
to the PC.
Data acquired from a WaveBook flows as fast as possible from the WaveBook to the
host PC. When a WBK30 is installed, and you have selected high acquisition rates
(relative to the transfer rate), then some delay in "real-time" viewing may occur.
Hardware Setup
CAUTION CAUTION CAUTION CAUTION
Turn power off to all connected devices before performing the setup.
To avoid pin damage, make sure the WBK30 card is aligned correctly with the mating
connector (J101) prior to pressing in place.
CAUTION CAUTION CAUTION CAUTION
Components are sensitive to damage from electrostatic discharge. Perform the setup
in a static-free work area using tools, wrist strap, containers, and procedures that are
ESD-safe.