Belden Grass Valley NV8900, Руководство пользователя

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14
Misc. Topics
Follow these steps to install an NV8900 interface:
1 Set the position of the 16-position rotary switch on the front of the interface.
Set the switch to any non-zero position.
Although the switch is not used at present, in the future MRC will use the switch
position to distinguish multiple NV8900s on an Ethernet LAN.
Use a small screwdriver to turn the rotary switch.
 In a network, all devices must have unique IP addresses. An IP address is deter-
mined (at least initially) by the rotary switch at the front of the MADI interface. The
rotary switches must (at least initially) be distinct.
2 Mount, and secure, the MADI interface in the rack.
For the 1 RU interfaces, the mounting holes are spaced 1.25 in (31 mm) vertically and
allow approximately 1/8 in (3 mm) of movement horizontally.
For the 2 RU interfaces, the 3 mounting holes on each side are spaced 1.25 in (31 mm)
and 1.75 in (44 mm)
(3
in, 76 mm, overall) vertically and allow approximately 1/8 in
(3 mm) of play horizontally.

You might not have enough space to reach behind the MADI interface and make
connections. In that case, leave this step until last.
3 If you are using the MADI interface on a network (for MRC), connect an Ethernet cable
(RJ-45) from the network switch to the Ethernet port of the MADI interface. Also
connect an Ethernet cable from your PC running MRC to the Ethernet switch.
4 Connect your video reference.
Each MADI interface has two video reference BNC connectors. You can connect a
reference source to either one. You can “daisy chain” the output of one reference
connector to the input of another. The output of the last connector in the series should
be terminated with a 75
Ω
BNC terminator.
Your MADI interfaces must use the same video reference as your router (especially an
NV8500 family hybrid router).
5 Optionally connect the ground lug to earth ground. Use copper wire from 14 to 6 AWG.
Grounding decisions are left to you or your facilities manager. Failure to connect the
ground will not affect normal operation, but connecting the ground will protect you
and your equipment in a power anomaly such as a lightning strike.
6 Connect one or both power supplies. First connect the 4-pin connector to PS1 or PS2
on the rear of the router. The connectors are keyed and snap into place. There is only
one way they fit. Do not force them. Then connect the power supply to AC power.
The second power connection is for redundancy only (protection against failure) and is
not a requirement for operation.
7 Connect input devices and output devices. No particular order or combination is
required.
Some of the MADI interfaces use standard 75
Ω
BNC connectors.
2
1
4
3
Receptacle
n.c.
n.c.
GND
12VDC
4
3
2
1
GND
12 VDC
n.c.
n.c.
Plug