Grass Valley NV7512 v.1.3 - Manual (Page 61)

NV7512 Audio Router • User’s Guide 51
2. Installation
Making Signal Connections
An optional pre-made DB25 male to pigtail breakout cable is available from NVISION
(NV5000-Cable1). The balanced wiring details for this cable are as follows:
For single-ended wiring, connect the signal or “hot” wire from the source to the “+” input and
connect the common or “shield” wire from the source to the “–” input. Bridge the ground pin
to the “–” pin:
3 Connect the other end of the cable to the source of the signal.
4 Locate the analog output connections on the rear of the router, as shown in Figure 2-11 on
page 50.
5 For each output, connect using a DB25 connector and cable, wiring the connectors as described
in Step 2.
6 Connect the other end of the cable to the signal destination.
7 Make other signal connections for AES signals, MADI signals. See
AES Synchronous Signals
on page 45 , MADI Synchronous Signals on page 47, or Quad Mix on page 52, as needed.
8 If connecting two or more NV7512 routers together, connect the signal expansion connections.
(See Signal Expansion Connections on page 53.)
Channel Pair Jacket Color
DB25 Connector Pin Number
Red (+) Black (–) GND
1 - Left 1 BROWN 24 12 25
1 - Right 2 RED 10 23 11
2 - Left 3 ORANGE 21 9 22
2 - Right 4 YELLOW 7 20 8
3 - Left 5 GREEN 18 6 19
3 - Right 6 BLUE 4 17 5
4 - Left 7 VIOLET 15 3 16
4 - Right 8 GRAY 1 14 2
Note: Pin 13 is not used.
Channel
DB25 Connector Pin Number
Signal Common
1 - Left 24 12, 25
1 - Right 10 11, 23
2 - Left 21 9, 22
2 - Right 7 8, 20
3 - Left 18 6, 19
3 - Right 4 5, 17
4 - Left 15 3, 16
4 - Right 1 2, 14
Note: Pin 13 is not used.