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Plena Weekly Timer | Installation and User Instructions | Equipment
3.3
Installation
The Timer can be installed on a table-top or in a 19-
inch rack. Two rack-mounting brackets are supplied (see
figure 3.5 for installation details).
figure 3.5: Brackets for rack-mounting
Bosch Security Systems | 2006-05 | 9922 141 50741 en
3.4
External connections
3.4.1
Connect the back-up power
supply
The Timer has two 24 Vdc screw terminals (7) for
connecting a backup power supply. You must connect
an earth (12) to the unit to increase the electrical
stability of the system.
7
-
+
-
1 2 V
+
D C
1 2 V
D C
figure 3.6: Back-up battery connections
en | 14
12
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