Grass Valley NV7512 v.1.3 - Manual (Page 63)

NV7512 Audio Router • User’s Guide 53
2. Installation
Making Signal Connections
4 For analog signals, use NVISION’s breakout cable (NV5000-Cable1) or a DB25 connector and
cable with custom wiring:
For the breakout cable, the following table lists which signal is associated with each wire:
For custom wiring, wire the DB25 connector as shown in Figure 2-14.
Figure 2-14. DB25 Pin Wiring
5 Connect the other end of the cable to the signal destination.
6 If connecting two or more NV7512 routers together, connect the signal expansion connections.
(See Signal Expansion Connections on page 53.)
Signal Expansion Connections
Using the signal expansion connections, up to four NV7512 frames can be connected together to
create a maximum switching matrix of 2048 inputs and 2048 outputs stereo (4096 inputs and 4096
outputs mono). The signal expansion connections transmit signals between the connected routers
and feed the signals to the connected router’s crosspoint cards. Connections are located on the rear
of the router.
The NV7512 contains 24 signal expansion connections, located on the rear of the router. Signal
expansion connections are divided into four sets; one for each crosspoint card. Each connection is
labeled to correspond to a specific crosspoint card slot, as follows. (See
Crosspoint Card Slots and
Outputs on page 7.)
• XPT 1 — The crosspoint card installed in the top slot: ‘A’.
• XPT 2 — The crosspoint card installed in the center-top slot: ‘B’.
Signal Wire Number
Jacket Color
(corresponds to wire number)
Left 1 1 Brown
Right 1 2 Red
Left 2 3 Orange
Right 2 4 Yellow
Left 3 5 Green
Right 3 6 Blue
Left 4 7 Violet
Right 4 8 Gray
13 Unused
Input 2
Input 4
Input 8
Input 6
11
23
10
8
20
7
5
17
4
2
14
1
Input 1
Input 3
Input 7
Input 5
25
12
24
22
9
21
19
6
18
16
3
15
1
14
25
SHLD
–
+
SHLD
–
+
SHLD
–
+
SHLD
–
+
SHLD
–
+
SHLD
–
+
SHLD
–
+
SHLD
–
+