BSS Audio FDS-388 OMNIDRIVE Owner's Manual - Manual (Page 59)

59
C.2 AES3 Input
Board Operation
With the AES3 Input board fitted the operation of the Omnidrive unit is largely
unchanged. The dynamic range of the Omnidrive with AES3 input is slightly
better than when an analogue input board is fitted and measures greater than
107dB.
The Sample Rate item in the Default Utilities screen will display the current
AES3 input sample rate as either 44.1kHz or 48kHz. If the AES3 input is
removed or goes out of a narrow lock range, the output relays will immediately
mute the analogue outputs. The output relays will be unmuted when the input
is back within lock range again.
Plugging in the AES3
Input/Output Board
Parts Supplied
AES3 input/output board SC5575 (approx 300mm by 180mm).
AES3 PLL board SC5560 (approx 80mm by 65mm).
AES3 input/output rear blanking panel (approx 40mm by 240mm).
A 34way IDC ribbon cable assembly.
M2.5 by 30mm screw.
M2.5 nut.
4 M3 by 8mm screws
4 M3 nuts.
1 Unplug the unit from the mains supply.
2 Remove the 8 screws holding the lid on and the 8 screws holding the base
on.
3 Unplug the 50 way IDC cable from the analogue output board.
4 Unplug the 8 way meteorology cable from the analogue output board.
5 Remove the screws and washers around the analogue output board. Older
units have three screws at the front of the output board and one in the back
left corner. Newer units have four screws at the front and four between the
output xlr connectors at the back.
6 Remove the 16 plastite screws fixing the output XLRs in place.
7 Remove the analogue output board and store in a safe place along with four
of the plastite screws.
1 Compare the front edge of the AES3 input/output board supplied to the
analogue output board removed from the unit. Older units will require the
protruding front edge strip of the AES3 input/output board to be broken off
at the point where slots have been cut in the board.
2 Insert the AES3 input/output board into the unit.
3 Fix the board with the M3 screws and washers that were removed.
4 Put the rear blanking panel over the input and output sockets and fix using
8 of the XLR plastite screws in the digital output sockets and the M3 nuts
and bolts supplied with the AES3 input/output board in the input sockets.
5 Refit the meteorology connector.
6 Refit the 50 way IDC cable into the AES33 input/output board.
7 Unplug the 34 way IDC cable which connects the analogue input board to
the dsp board at the dsp board end. Plug the free end into the AES3 input/
output board at position CN4 (labelled ‘To ADC Board’). Plug the new
34way cable supplied in the kit into CN3 (labelled ‘To ADC Connector on
DSP Board’) and plug the other end into the dsp board where the original
input cable was connected.
C.3 Fitting The
AES3 Input/Output
Board
Removing the
Analogue Output
Board
AES3 Input Board Operation
Fitting The AES Input/Output Board