User Manual

tions. With the switch in the ʻWrite OKʼ position, reads and writes can take
place normally. This switch must be in the ʻWrite OKʼ position for shows to
be downloaded via the serial port to the Br-ANA. With the memory write pro-
tected, the Br-ANA should retain whatever has been programmed into it for
at least forty years.
C) Smart' Brick/'Dumb' Brick Select
(Slide Switch)
This switch tells the Br-ANA whether the Br-ANA is going to be acting like
a ʻDumbʼ Brick or a ʻ'Smart' Brickʼ. When acting as a ʻDumbʼ Brick, the Br-
ANA will be triggered to play shows by the four optically isolated ʻJ8ʼ trigger
inputs. When acting as a ʻSmartʼ Brick, The Br-ANA will lock to and follow
time code information send to it through the 'Smart' Brick Network from the
'Smart' Brick Brian.
A single card cage should not have both ʻSmartʼ and ʻDumbʼ Bricks in-
stalled in the same card cage. Damage may result if there are.
This switch actually switches the six wires that connect to the backplane
of the Br-ANA between the optoisolators used for 'Dumb' Bricks and the RS-
422 receivers used for 'Smart' Bricks. If you plug a Br-ANA which has been
configured to act as a 'Smart' Brick into a slot that has been configured for a
'Dumb' Brick, you risk damaging the RS-422 receivers.
The Br-ANA doesnʼt actually believe that it has been set to act as a
'Smart' Brick until it receives a valid message through the 'Smart' Brick
Network. In the unlikely event that you switch from 'Smart' Brick to 'Dumb'
Brick mode while a Br-ANA is running, there will be a delay of ten seconds
or so before it starts acting as a 'Dumb' Brick.
D) J8 Power
(Slide Switch)
If the Br-ANA is acting as a 'Dumb' Brick, then this switch is used to select
whether the ʻJ8ʼ power for the optoisolators is provided by the same power
supply as the Br-ANA, or is provided by an external isolated source. When
operating as a 'Smart' Brick, this switch has no effect. See the ʻJ8ʼ instruc
-
tions
for more details on this.
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax [phone]
Br-ANA Manual / December 18, 2012 10:21 AM / page 28 of 60