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13 Audio Distribution Amplifier - RB-DDA6W-2P
13 RB-DDA6W-2P 6 Way Word Clock Distribution Amplifier With
Dual Power Supplies
Introduction
Fig 13-1: RB-DDA6W-2P Front Panel
The
RB-DDA6W-2P
word clock distribution amplifier distributes a word
clock BNC input signal to 6 word clock BNC outputs re-conditioned. It is
used to distribute reference clocks for digital audio systems.
It has a single female BNC audio input which is distributed to 6 female BNC
outputs. The units primary application is to distribute a master TTL word
clock source to multiple pieces of equipment that need to be synchronised
from the master.
The unit provides redundancy protection by using two power supply units
that can be supplied from separate mains feeds. The unit automatically load
shares between the two supplies so that if either supply should fail the unit
will continue to work correctly. If both supplies fail the input is connected
directly to output 1.
Power Indicator LEDs
The condition of the two supplies is indicated on the front panel by two red
LEDs which illuminate to indicate the correct function of the supply. On the
alarm output connector there is a changeover relay to indicate the status
of each supply. This is normally closed to indicate power fail and once the
supply is working correctly the relay activates to make a normally open
contact.
