Gilderfluke&Co 8 Bit Digital Audio Systems User Manual
Page 66
Top
1)
A input negative
2)
A input positive
3)
B input negative
4)
B input positive
5)
Ground
6)
Negative audio output
7)
Positive audio output
8)
+ 5 volt supply
9)
+12 to +15 volt supply
Bottom
10)
-12 to -15 volt supply
CC-3251 Connections for DR-50 MiniRepeaters:
The CC-3251 card cage is the same as the CC-3250, except that the
audio outputs are through four DB-25 connectors and the trigger inputs are
through two 40 position ribbon cable connectors arranged in our standard
ФJ6Х. Power supply connections are identical to the CC-3250.
Audio Outputs: Twenty-five position female DB-25 connector. This is
used for the balanced audio outputs from the DR-50s installed in the
card cage. Each DR-50 has one balanced audio output on it. The
pinout of the the first of these connectors is as follows. The other three
connectors are identical for the remaining cardsÕ outputs.
The first connector is for cards one through eight.
The second connector is for cards nine through sixteen.
The third connector is for cards seventeen through twenty-four.
The fourth connector is for cards twenty-five through thirty-two.
SIGNAL NAME COLOR
SIGNAL FUNCTION
PIN #1
Ground 1
BROWN
card #1 Ground
PIN #14
+ Output 1
RED
card #1 Balanced Audio Line Level Positive (+)
PIN #2
- Output 1
ORANGE
card #1 Balanced Audio Line Level Negative (-)
PIN #15
Ground 2
YELLOW
card #2 Ground
PIN #3
+ Output 2
GREEN
card #2 Balanced Audio Line Level Positive (+)
PIN #16
- Output 2
BLUE
card #2 Balanced Audio Line Level Negative (-)
PIN #4
Ground 3
VIOLET
card #3 Ground
PIN #17
+ Output 3
GRAY
card #3 Balanced Audio Line Level Positive (+)
PIN #5
- Output 3
WHITE
card #3 Balanced Audio Line Level Negative (-)
PIN #18
Ground 4
BLACK
card #4 Ground
PIN #6
+ Output 4
BROWN
card #4 Balanced Audio Line Level Positive (+)
PIN #19
- Output 4
RED
card #4 Balanced Audio Line Level Negative (-)
PIN #7
Ground 5
ORANGE
card #5 Ground
PIN #20
+ Output 5
YELLOW
card #5 Balanced Audio Line Level Positive (+)
PIN #8
- Output 5
GREEN
card #5 Balanced Audio Line Level Negative (-)
PIN #21
Ground 6
BLUE
card #6 Ground
PIN #9
+ Output 6
VIOLET
card #6 Balanced Audio Line Level Positive (+)
PIN #22
- Output 6
GRAY
card #6 Balanced Audio Line Level Negative (-)
PIN #10
Ground 7
WHITE
card #7 Ground
PIN #23
+ Output 7
BLACK
card #7 Balanced Audio Line Level Positive (+)
PIN #11
- Output 7
BROWN
card #7 Balanced Audio Line Level Negative (-)
PIN #24
Ground 8
RED
card #8 Ground
PIN #12
+ Output 8 ORANGE
card #8 Balanced Audio Line Level Positive (+)
PIN #25
- Output 8
YELLOW
card #8 Balanced Audio Line Level Negative (-)
PIN #13
N/C
GREEN
The balanced line drivers used on the DR-50s are a SSM-2142.
This chip provides a high quality balanced output that is compen-
sated for 600 ohm lines. If operating in single ended mode, the
unused outputs must be tied to their respective ground lines. If
you donÕt, the output will be excessively noisy.
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ILDERFLUKE
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