page 10 – 5
METERBRIDGE
D-75 / Sep 2004
D-75 / Nov 2009
B Source Logic Options
As shipped from the factory the following IN-75 features only work, by default, when
source A is selected on a module: remote logic functions, with the exception of the B tally;
mutes and tallies; and timer restart. Dipswitch SW2 on the PR-75 module in the
meterbridge provided a way to enable these features for B sources.
PR-75 SW2 position 1 (REM B) activates remote logic for B sources when ON
PR-75 SW2 position 2 (MUTE B) activates mutes and tallies for B sources when ON
PR-75 SW2 position 3 (TMR B) activates timer restart for B sources when ON
These settings are global in nature; each dipswitch setting affects all IN-75 modules
at the same time. In other words, if you need to, for example, do a CR mute from a B source
on one module, then any other module that does a CR mute will also mute from the B
source.
To make these settings, follow the directions shown on page 10-4 for UTIL Pre-Fade/
Pre-On Defeat, but substitute the dipswitch position required, as listed above.
In the case of mutes, tallies, and timer restart, note that the appropriate dipswitch
setting on the individual IN-75 module must also be set. That is, if you enable B timer
restart, a module must still have the timer restart dipswitch set for that module to do a timer
restart.
External AES Sync Input
The PR-75 board is provided with connector CT-12, a DB-9, to allow the console’s
sample rate to by synchronized to an external AES Black signal (Word Clock is not
supported). If a valid AES sync signal is connected, the console automatically synchro-
nizes to this signal, and if the signal disappears or becomes invalid the console automati-
cally switches back to the internal sample rate clock. The internal sample rate should be
set to the same frequency as the external sync to avoid drastic sample rate changes if the
external sync is lost.
N/C
N/C
N/C
AES SYNC IN L
ANALOG GROUND
N/C
N/C
AES SYNC IN SH
AES SYNC IN HI
5
9
4
3
2
1
8
7
6
CT-12
Female DB-9
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