User's Manual

Doc. No.
Rev.
Date
DRAFT
1.01
2012-01-27
Damm Cellular Systems A/S, Denmark
TetraFlex
®
7.5 Manual - BS41x
TetraFlex® 7.5 Manual 1-27
The plus pole of the Battery shall be grounded with a 15mm
2
yellow/green wire. A protective
ground connection shall also be established from the Battery to the BS.
Note: In case of using a DC mains supply where the plus pole not is connected to ground
then the connection to the DC mains supply shall include a disconnection device which
disconnects both poles simultaneously, otherwise there shall be a disconnection device, in
the connection to the minus pole.
1.3.6 Connection to AC Mains
The BS is provided with Power Supplies supporting direct connections to 100V-240V AC and
47-63 Hz, one phase. Mains connection shall not be established, when the BS is running on
an external battery with separate charger.
Mains are connected in the connection box (See 1.3.7). Two separate connections are
available and both shall be connected. The first (and third) PS411 is powered from the left
connection and the second (and fourth) PS411 from the right connection. The split makes it
possible to run the BS on two different mains phases to obtain redundancy in case of a phase
dropout (fuse blown). The two connections can also be parallel connected in the BS.
The mains connection is provided with a protective earth connection. If a separate earth
connection is provided on the BS, it is recommend to leave it open.
Figure 1-26: Mains connection block
PS1
PS3
PS2
PS4