Tait TB9100, Installation And Operation Manual

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TB9100 Installation and Operation Manual Installation 55
© Tait Electronics Limited May 2006
You must connect the DC supply from the battery to the PMU via a fuse or
DC-rated circuit breaker with the appropriate rating, as shown in the table
below. The DC input leads should be of a suitable gauge to ensure less than
0.2V drop at maximum load over the required length of lead.
Terminate and insulate the DC input leads so they are protected from
accidentally shorting to the subrack if the PMU is removed before the leads
are disconnected.
DC Power with 12 V
PA
The TB9100 12 V PA is designed to accept a nominal 12 VDC input with
negative ground. There is a minimum DC startup threshold to prevent
damaging a battery which has little capacity left.
You must connect the DC supply from the battery to the PA via a fuse or
DC-rated circuit breaker with the appropriate rating, as shown in the table
below. The DC input leads should be of a suitable gauge to ensure less than
0.2V drop at maximum load over the required length of lead.
Nominal Supply
Voltage Input Voltage
Range Circuit Breaker/
Fuse Rating Recommended
Wire Gauge
a
a. For a length of 5ft to 6.5ft (1.5m to 2m) (typical).
12VDC 10VDC to 16.8VDC 60A 2AWG / 35mm
2
24VDC 20VDC to 33.6VDC 30A 5AWG / 16mm
2
48VDC 40VDC to 60VDC 15A 8AWG / 8mm
2
Figure 4.11 Recommended DC power connection
Nominal Supply
Voltage Input Voltage
Range Circuit Breaker/
Fuse Rating Recommended
Wire Gauge
a
a. For a length of 5ft to 6.5ft (1.5m to 2m) (typical).
12VDC 10VDC to 16.8VDC 15A to 18A 8AWG / 8mm
2