Measurement Computing 200 Series DaqBook - Manual (Page 19)

DaqBook User’s Manual 01-23-02 DaqBook Hardware 3-1
A Closer Look at DaqBook Hardware 3
DaqBook/100, /112, /120, /200, and /216 ……3-1
In General …… 3-1
DaqBook Differences …… 3-1
Performance Factors …… 3-2
Front and Rear Panels ……3-2
Jumpers ……3-4
Connections ……3-7
DaqBook/260 …… 3-12
Front and Rear Panels ……3-12
Hardware Setup ……3-13
Stacking Hardware ……3-17
Using Dual-Lock Tabs and Splice Plates …… 3-17
Using T-Cables ……3-18
DaqBook/100, /112, /120, /200, and /216
In General
DaqBooks consist of boards enclosed in a 8.5 × 11 × 1.375 inch metal chassis; with exception of the
DaqBook/260, which is 11 × 13 × 3.5 inches. DaqBooks attach to a host PC’s parallel port via a 25-wire
parallel port cable and can transfer data bi-directionally at up to 170 Kbytes/s for a standard printer port
(SPP) and up to 800 Kbytes/s for an enhanced parallel port (EPP). Data is stored in the PC’s memory and
hard drive, not in the DaqBook.
DaqBooks can be powered from a suitable AC-to-DC power adapter, a 12 V car battery, or a rechargeable
NICAD battery module. This power flexibility is ideal for portable and remote data acquisition, such as
automotive and aviation in-vehicle testing.
Output power from the DaqBook’s P1 connector includes: +5 VDC via pin 1, +15 VDC via pin 21, and
-15 VDC via pin 2.
Reference Notes:
The section,
External Analog Expansion Power (JP1) , explains how to set JP1, based on
power use in the system.
DaqBooks have capabilities which, at one time, could only be met by using several plug-in DAS boards.
All DaqBooks provide 16 analog inputs, and can be expanded up to 256. In addition, each model has 2
analog outputs, and at least 4 digital I/O channels. Some models have built-in expansion slots; other models
have additional digital I/O and counter/timer capabilities.
DaqBook Differences
While all DaqBook models are closely related, the following should be noted.
•
DaqBook/112 and DaqBook/216 provide 1 slot for an expansion DBK card.
•
DaqBook/100, DaqBook/120, and DaqBook/200 do not have an expansion slot, but do have
24 general-purpose digital I/O channels (expandable up to 192), 16 high-speed digital inputs,
and 5 frequency/pulse I/O channels.
•
DaqBook models /120, /200, and /260 have EPP (Enhanced Parallel Port) capability.
•
DaqBook/260 has 3 expansion slots for DBK cards.
•
DaqBook/100, DaqBook/112, and DaqBook/120 are 12-bit.
•
DaqBook/200, DaqBook/216, and DaqBook/260 are 16-bit.