NV9700 • User’s Guide
1
NV9700
This brief guide describes the NV9700 Remote Diagnostic and Changeover Panel, a small and sim-
ple device that is part of a redundant NV9000 control system.
Please refer to the NV9000 documentation for information about NV9000 and its operation.
Introduction
The NV9700 is a slim 1RU device that allows an NV9000 operator these capabilities:
• See at a glance which NV9000 system controller is active.
• See at a glance whether an NV9000 system controller has an abnormal condition.
• Force a switch from one system controller to the other at any time.
• Hear an alert signal when an alarm condition occurs.
In addition, the NV9700 has a set of relay (GPO) outputs at the rear that can control fairly heavy-
duty external circuitry. The relays reflect the status conditions that are indicated at the front of the
panel. (See the
on page 10.)
This is the front of the panel:
There are two large push-button switches and 3 status LEDs for each of the two redundant system
controllers. Pressing the button forces the system active. The 3 LEDs indicate:
• Left, green LED
—
system controller is “healthy.”
• Middle, amber LED
—
the system controller is active. Normally, one controller is active.
• Right, red LED
—
the system controller has an alarm condition.
Buzzer
The front of the panel has an internal buzzer that sounds when an alarm condition arises. The
buzzer is behind the speaker icon imprinted on the panel. The buzzer can be disabled.
Next to the buzzer is a mute button. When the buzzer sounds and an operator responds to the alarm,
the operator may press the mute button to turn off the buzzer. (The mute is not a toggle. The buzzer
remains muted until another alarm condition occurs.)
Panel Health
At the right end of the panel are 3 more LEDs. Two represent the two (redundant) power supplies
and are illuminated when the power supply is connected and power is good. The remaining LED
Switch and Status LEDs for
System Controller 1
Switch and Status LEDs for
System Controller 2
Buzzer and
Mute Switch
Panel
Health LED
Power Supply
LEDs
