Measurement Computing LogBook Series - Manual (Page 48)

4-4 System Expansion 957096 LogBook User’s Manual
Remote On/Off Switch and LED Indicator Options . If LogBook’s female DB9 TERMINAL connector
is not being used for the LBK1 remote terminal or another device, it can be used to connect a remote on/off
switch and/or indicator LED. The following chapter provides the information needed to add any one of the
following three remote options:
• Remote On/Off Switch and LED
• Remote On/Off Switch (no LED)
• Remote LED Indicator (no remote switch)
Considerations
DBK Configuration
The DBKs are usually configured before the connections are made and power is applied. This order of
installation can prevent equipment damage and help ensure proper operation on startup.
Many DBKs have on-board jumpers and/or DIP switches used for setting channels and other variables.
These settings are discussed in the individual DBK sections of the DBK Option Cards and Modules User’s
Manual (p/n 457-0905), which is installed on the PC’s hard drive as a part of product support. The default
location is the Programs directory, accessible via the Windows Desktop.
For systems with many modules, stacking units together helps conserve space and assure easy cable runs.
Such stacking is typically accomplished with the use of a splice kit. The kit is shipped as part of the
package for several DBK modules. The splice plate kits include metal plates (fastener panels) that screw
onto the sides of a module. A vertical rack of several modules can be assembled. An optional handle is
available for portable use, for example, when using two stacked modules.
Prior to expanding your LogBook system you should review the following DBK Basics section of the
manual, with special attention to the section entitled, Tips on Setting up a Data Acquisition System. Prior
planning will go a long way towards optimizing your acquisition setup and will most likely save you time.
Dimensional and Environmental Factors
Before setting up your LogBook-based acquisition system, you should consider the following size and
environmental related factors.
LogBook/300 Dimensions: 8½ × 11 × 1-3/4 in. (216 × 279 × 44 mm). This enclosure has the same
footprint as the DBK modules for easy stacking of units.
LogBook/360 Dimensions: 14 × 11 × 3-7/16 in. (330 × 279 × 84 mm). The width (11”) provides for
convenient stacking of DBK modules.
Operating temperature/humidity: -40° to 140°F (-40° to 60°C) @ 0 to 95% RH, non-condensing.
Operation of the unit in environments exceeding these limits requires that a temperature-regulated
enclosure).
Storage temperature: -40° to 176°F (-40° to 80°C). The standard case is rugged but not designed for
immersion. Special enclosures are available for harsh environments.
All connectors, including the power connector, are locking. The D-sub connectors have thumbscrews and
the DIN5 power connector has a twist-lock ring to ensure solid connections are maintained.