Making alarm connections, Connections, see, Installation – Grass Valley NV7512 v.1.3 User Manual
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NV7512 Audio Router • User’s Guide
71
2. Installation
Making Alarm Connections
2 Connect to the ‘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 ‘2’, ‘3’ and ‘4’ monitor connections using a 75
Ω BNC connector and coaxial
cable, as described in steps 2 and 3.
Making Alarm Connections
The NV7512 provides alarms that send notification when a system malfunction occurs, such as
when a fan or power supply is not functioning properly. Alarms can be connected to an external
alarm indicator that displays visual cues when an alarm is activated. The NV6257 (power supply)
and the NV7512 each have alarm connections. NVISION does not provide external indicator
equipment, but does provide instructions on wiring the alarm connections. See
on page 72. Both the NV6257 and the router send status information to the router con-
trol system. For a detailed description of the router alarm connection, see
How to make alarm connections
1 On the rear of the NV6257, locate the ‘Alarms’ connection, as shown in Figure 2-32.
Figure 2-32. NV6257 Power Supply (Rear View)
2 Connect to the ‘Alarms’ connection using a DB25 connector and serial cable.
3 Connect the other end of the cable to an external alarm indicator box. See
page 72 for information on wiring the DB25 connector.
FAN
Power supply connections PS1 through PS8
Output
Power 1
Output
Power 2
Power
Supply
Monitors
Alarms
Output Power 1
and
Output Power 2
(Power Connector)
Power Supply
Monitors
(DB25 Connector)
Alarms
(DB25 Connector)
Power Supply
Power Connector
A