User's Manual

TB8100 Installation and Operation Manual Connection 107
© Tait Electronics Limited March 2005
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 12V
PA
The TB8100 12V PA is designed to accept a nominal 12VDC input with
negative ground. There is a minimum DC start-up 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.
The pin allocations for the 2-way DC input connector are shown below.
Nominal Supply
Voltage
Input Voltage
Range
Circuit Breaker/
Fuse Rating
Recommended
Wire Gauge
a
a. For a length of 1.5m to 2m (5ft to 6.5ft) (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
Nominal Supply
Voltage
Input Voltage
Range
Circuit Breaker/
Fuse Rating
Recommended
Wire Gauge
a
a. For a length of 1.5m to 2m (5ft to 6.5ft) (typical).
12VDC 10.6VDC to 16.8VDC 15A to 18A 8AWG / 8mm
2
Pin Description
1+V input
2 ground
2-way connector - external view
b
c