Installation Instruction VARIODYN
®
D1 System
72 FB 798663.GB0 / 05.19
Using backup amplifiers
7.7.1 Series 2XHx00 and 2XDxx0
One DOM and one backup amplifier:
*10
(with 2 channels):
• Backup for 6 DOMs, each using one power amplifier
or
• Backup for 12 DOMs, each using two power amplifiers
*10
The output power of the backup amplifier must be equal to or higher than that of the largest power amplifier.
CH1 OUT
1
4
2
5
3
6
1
4
2
5
3
6
CH2 OUT
CH3 OUT
1
4
2
5
3
6
1
4
2
5
3
6
CH4 OUT
IN
REP PA
1 2
1 2
3 4
3 4
DOM
(with main aplifiers)
DOM
(with backup amplifiers)
to additional
DOM
1
2
The existing DOM can be used for the
connection. The second power amplifier
replaces the first power amplifier.
With a two-channel backup amplifier incl.
the backup cable RC 22
(Part No. 583422.21), up to 6 DOMs can
be substituted. This makes a maximum
ratio of 1:12 (backup to power amplifiers)
Use to connect the prefabricated cabling from two backup channels to four voice/data channels.
Fig. 65: Backup cable RC 22 VARIODYN
®
D1, 2 m (Part No. 583422.21)