Description
Leuze electronic
Technical description BCL 21/22 SB
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TNT
35/7-2
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3
Description
BCL 21/22 device construction
Figure 3.1:
BCL 21/22 device construction
3.1
The bar code readers BCL 21/22
The bar code readers BCL 21/22 are high-speed scanners with integrated decoder for all
bar codes currently in use, e.g. 2/5 Interleaved, EAN etc.
The many possible configurations allow the adaptation of the device to a multitude of
reading tasks. Due to the small dimensions, the BCL 21/22 may also be used in highly
constrained spaces. The low weight permits the installation into machines that were not
designed for heavy components. The various beam exits (perpendicular/front side) extend
the area of application of the BCL 21/22 and help it to adapt.
The connector units MA … offer simple electrical installation in conjunction with the BCL 21.
Information on technical data and characteristics can be found in chapter 4.
BCL 22 "stand alone"
The bar code reader BCL 22 is operated as a "stand-alone" device on the RS 232 interface.
The BCL features a cable for the electrical connection of the supply voltage, the interface,
and the switching inputs.
BCL 21 with MA2/MA 4…
If several BCLs are to be networked, the use of a connector unit MA 2/MA 4… is recom-
mended for each BCL 21 with RS 485 interface. Electrical connection, commissioning, and
service can be comfortably carried out in a short period of time. BCL 21 and MA 2/MA 4…
are arranged separately. The two devices are connected by a cable.
Reading
window
Two mounting threads M3 each
(4mm thread depth) on the rear
and bottom side of the device
Cable with 15-pin Sub-D
connector or with panel
connectors for connection
to MA …
Mounting slider