Measurement Computing WBK18 - Manual (Page 5)

Hardware Setup
Configuration
The WBK18 requires no physical hardware settings. All WBK18 configurations are controlled by software.
Reference Note:
Setup information pertaining to power, expansion control, and expansion signal connections is
contained in the chapter
System Setup and Power Options, in the WaveBook User’s Manual.
It is possible to connect a WaveBook to the host computer’s parallel port with either a 2-foot
(CA-35-2) or 6-foot (CA-35-6) communication cable. To minimize the amount of noise that is
introduced to the WBK18, use of the 2-foot (CA-35-2) cable with the WaveBook is
recommended.
Power
The WBK18 module can be powered by an AC power adapter or directly from any 10 to 30 VDC source, such as a
12 V car battery. For portable or field applications, the WBK18 and the WaveBook can be powered by the
DBK30A rechargeable battery module.
Reference Note:
For details regarding power, refer to the chapter,
System Setup and Power Options , in the
WaveBook User’s Manual.
As described in this referenced chapter, it is possible to power the WBK18 from the POWER OUT
DIN5 connector on the WaveBook and to power other WBK expansion modules from the POWER
OUT DIN5 connector on the WBK18. The following notes apply to those types of power connections.
Tables for determining amp load are provided in the WaveBook User’s Manual chapter entitled
System Setup and Power Options. The following factors are very important.
•
•
•
Calculate system amp load prior to creating a system daisy-chain. Although WaveBook
device connectors and CA-115 power cables have 5 amp limits, TR-40Us are limited to
2.2 amps. If necessary use auxiliary or high-current power supplies.
If using an AC power adapter for the system power, use separate adapters for the
WaveBook and the WBK18.
The WBK18 has a 5 amp current limit. TR-40U power supplies are limited to 2.2 amps.
Power consumption calculations must be done to ensure that a particular daisy-chain
scheme does not exceed either of these current limits.
WBK18, Dynamic Signal Input Module 926896 WBK18, pg. 5