Miranda NV8256-Plus, Руководство пользователя

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44 Rev 1.3 • 29 Mar 09
3. Installation
Making Monitor Connections
from each output card in the router. By connecting monitoring equipment to the monitor connec-
tions, the quality of signals being distributed from the router can be verified.
If connecting two NV8256-Plus routers together, only one router is connected directly to the moni-
toring equipment. This router acts as the
primary router. Monitor expansion connections are then
made between the primary router and the secondary, connected router. This enables the monitoring
equipment to see both routers through the monitor connections on the primary router. (See
Monitor
Expansion Connections on page 44.)
Local Monitor Connections
There are two monitor connections: ‘OUT 1’ and ‘OUT 2’, located on the rear of the router. Each
connection can be configured to match a level set up in the control system. Depending on how lev-
els are configured, ‘OUT 1’ and ‘OUT 2’ can each monitor one signal type: SD, SWB or 3Gig. For
more information, see
Monitor Card on page 21.
How to Make Monitor Connections
1 Locate the monitor connections on the rear of the router, as shown in Figure 3-14.
Figure 3-14. Monitor Connections (Rear View)
2 Connect to the ‘OUT 1’ monitor connection using a 75 Ω BNC connector and coaxial cable.
3 Connect the other end of the cable to the monitoring equipment being used to monitor outgoing
signals.
4 Connect to the ‘OUT 2’ monitor connection using a 75
Ω
BNC connector and coaxial cable.
5 If connecting two NV8256-Plus routers together, connect the monitor expansion connections.
(See Monitor Expansion Connections on page 44.)
Monitor Expansion Connections
If two NV8256-Plus routers are connected together, monitor expansion connections need to be con-
nected between the routers. One router acts as the
primary router. This router is directly connected
to the monitoring equipment. (See Making Monitor Connections on page 43.) The secondary , con-
nected router is connected to the primary router’s monitor expansion connections. This enables you
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