Miranda NV8144 User Manual

86 Rev 2.2 • 27 Mar 10
2. Installation
Connecting to Power
Depending on your system, more than one power supply module may be required. The following
table lists the power requirements for a single fully loaded router frame with either coax or fiber
optic cards and backplanes:
For details about power requirements, see Power Specifications (NV8000, PS8100) on page 107
.
When you are connecting the NV8000 power supply frame to a router, and the power supply frame
to power, separate connections are made for power and power monitoring. To create those connec-
tions, Miranda provides the following (one set is required per router):
•
Two WC0096 power supply cable.
• Two WC0046 monitor cables.
The NV8500 family router frames have a ground lug on the back of the router. We recommend you
connect the ground lug to earth ground. Failure to connect the ground does not affect normal opera-
tion. However, grounding helps protect you and your equipment in case of a power anomaly such
as a lightning strike.
NV8000 Monitor and Alarms Connections
The NV8000 power supply frame has two DB25 connectors, located at the rear. One connection,
labeled ‘Power Supply Monitor’ carries alarm and temperature signals to the router. When two
expandable router frames (NV8280-Plus or NV8576-Plus) are connected, each router is connected
to the monitor connection on its own pair of NV8000 power supply frames. A loop-through con-
nection passes monitoring information between the two NV8000 power supplies. Monitor connec-
tions can be made at the time power is connected.
(See How to Connect Two NV8000 Frames to One Router Frame (NV8576 only)
on page 91.)
The other DB25 connector, labeled ‘Alarms’ presents isolated alarm signals that can be connected
to an external alarm indicator. For information on connecting NV8000 alarms connections, see
Making Alarm Connections
on page 83.
Frames Wattage
NV8000s
Required
Total Power Supply Modules Required
NV8144 (coax) 850 None 1 required,
1 optional for redundancy
NV8144 (fiber optic) 875 None 1 required,
1 optional for redundancy
NV8280 (coax) 1,700 1 2 required,
2 optional for redundancy
NV8280-Plus (coax) 1,700 1 2 required,
2 optional for redundancy
NV8576 (coax) 3,400 2 4 required,
4 optional for redundancy
NV8576 (fiber optic) 3,600 2 4 required,
4 optional for redundancy
NV8576-Plus (coax) 3,400 2 4 required,
4 optional for redundancy
NV8576-Plus (fiber
optic)
3,500 2 4 required,
4 optional for redundancy

Miranda NV8144 Specifications

General

Brand	Miranda
Model	NV8144
Category	Switch
Language	English