NV8288 and NV8288-Plus Digital Video Routers • User’s Guide
49
3. Installation
Making Alarm Connections
For an external alarm indicator box, connect to the ‘Alarms’ connection using a DE9 female con-
nector, wiring as shown in Figure 3-24. Each pin monitors a specific function and activates a spe-
cific alarm.
Figure 3-24. NV8000 Power Supply Alarms Connection, DE9, Female
Router
The ‘ALARM’ connection on the rear of the router uses a DE9 connector. An “alarm” or ON con-
dition occurs when the connection between an alarm pin and Alarm_COM (common) opens. The
alarm turns OFF when the connection between Alarm_COM and the alarm pin closes again.
For an external alarm indicator box, connect to the ‘ALARM’ connection using a DE9 female con-
nector, wiring as shown in Figure 3-25. Each pin monitors a specific function and activates a spe-
cific alarm.
Figure 3-25. Alarm Connections and On/Off Switches
1
2
3
4
5
6
7
8
9
1
2
3
4
5
PS1
PS1 COM
PS2
PS2 COM
PS3
8
7
8
9
PS3 COM
PS4
PS4 COM
GND
For connection examples, see the
NV6257 diagram. Connections may
be made for all 4 power supplies in
the NV8000 frame.
Typical Circuit 1
Customer-supplied relay
contacts NC, (but open during
alarm condition)
External Power,
30VDC max, 150mA max
Normally ON, the LEDs turn off to indicate failure
1
COM
Normally OFF, the LEDs turn on to indicate failure
30VDC max, 150mA max
External Power
1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
Alarm COM
Alarm 1
Alarm 2
Alarm 3
Alarm 4
8
7
8
9
Alarm 5
Alarm 6
Alarm 7
Alarm COM
Typical Circuit 2
COM
Содержание NV8288
Страница 1: ...User s Guide NV8288 and NV8288 Plus Digital Video Routers ...
Страница 10: ...x Rev 1 3 21 Oct 08 Table of Contents ...
Страница 62: ...52 Rev 1 3 21 Oct 08 4 Configuration Summary ...
Страница 70: ...60 Rev 1 3 21 Oct 08 6 Maintenance Obtaining Service ...
Страница 76: ...66 Rev 1 3 21 Oct 08 7 Technical Details Environmental Specifications ...
Страница 80: ...70 Rev 1 3 21 Oct 08 A Part Numbers Frame Expansion ...
Страница 86: ...76 Rev 1 3 21 Oct 08 Index ...