Gilderfluke&Co BR-SmartMedia - Manual (Page 19)

7 Data bit 6
8 Data bit 7
9 Address bit 0
10 Address bit 1
11 Address bit 2
12 Address bit 3
13 Address bit 4
14 Address bit 5
15 Address bit 6
16 Address bit 7
17 ground
18 ground
19 Strobe/
20 Reset/
When the address and data lines are valid, the rising edge of
the Strobe line will latch the data into the addressed outputs.
D) Board Error LED: This LED will flash when:
1) BR-SmartMedia has just booted
2) An error is found in the DMX-512 data checksum
3) An error is found in the 'Smart' Brick Network checksum
E) DMX-512 LED: This LED will be lit when the BR-SmartMedia is re-
ceiving DMX-512 or RealTime updates via the RS-422 serial port.
F) Brain Heart/Running LED: ‘Smart’ Brick mode: The heartbeat from
the 'Smart' Brick Brain is transmitted throughout the system over
the 'Smart' Brick Network. The presence of a healthy heartbeat
means that the data on the 'Smart' Brick Network is getting
through cleanly. If it ever stutters or flashes erratically (or not at
all), then there is a problem with the 'Smart' Brick Brain, the 'Smart'
Brick Network, or the BR-SmartMedia. As the DMX-512 takes prece-
dence over the 'Smart' Brick Network, this LED will go dark whenev-
er a DMX-512 signal is present.
G) Heartbeat LED: This LED Flashes continuously while the CPU is run-
ning. If it ever stops for more than a fraction of a second, the
'Deadman' circuit in the BR-SmartMedia will automatically reset
the CPU. While performing an Ease-In, the heart rate will double.
H) Address Switches: These two rotary switches on the front of the
BR-SmartMedia are used to set the address of the RS-422 serial
port where this card will be found. Normally, only one card is set
to use any one address. If more than one card is set to the same
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