Building block structure Manual BG41/BG42/BG43
2-6 Rev. 99/49
2.2.3 Building block BG43
The building block module BG41 is a flat building block in double Euro-format
with two 48-pole base plugs in the construction system ES 902. It has a width
of 1 1/3 mounting places.
The building block BG42 has 3 interfaces, which could be adapted to certain
physical modes of transmission by means of interface modules.
The front panel of the module consists of:
(1) Three 25-pole SubD socket for the three interfaces with
(2) hexagonal threaded bolts for fastening the plugs
(3) Two or four LEDs above the 25-pole SubD sockets, which provide
information on the operational state and on each connected module
(see chapter 3).
(4) An 8-pole mini DIN-socket for the service interface.
Fig. 2-6:Front panel of building block BG43
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