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6
Installing an Analogue Connection Unit (ACU)
LBB 6725/xx and LBB 6726/xx
6.1 Functional description
The Analogue Connection Unit (ACU), which is mounted in the DCU, is an interface
unit between the DCU and the telephone exchange (PABX) analogue lines.
Each ACU contains 8 analogue lines in which each line represents a DECT6000
handset. The ACU also functions as a galvanic isolation between the DECT6000 system
and the PABX. One DCU can contain up to 8 ACUs. Figure 6.1 and 6.2 shows the
situation without and with the use of a DCU. If possible existing telephone wiring may
be used as shown in example below.
PABX
Figure 6.1 Normal telephone system
PABX
Figure 6.2 Telephone system integrated with DECT using existing cabling
Terminal strip
Terminal strip
BS
Terminal strip
Terminal strip
BS-DCU connection cable
ACU-PABX connection cable
DECT6000
BS
BS
BS
DCU
Installation Instructions
en
CHAPTER 6
13
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