QuickStart Guide
Product Number: QG0014-01 Revision: A0; Date: 4/29/13
1
NV920 Control System
and Accessories
Product Summary
Your Miranda shipment contains an NV920 frame contain-
ing one or two NV920 system controllers and power supplies,
power cords, and this Quick Start guide. Depending on your
order options, the shipment might also include cables and
peripheral devices. See Figure 1.
An NV920 system controller allows you to configure and
operate routers, control panels, and other connected equip-
ment. A complete NV920 control system includes several
parts that work together:
•
NV920 system controller(s).
•
NV9000-SE Utilities configuration software.
•
PCs running configuration or control software.
•
Routers.
•
Control panels (physical or virtual).
•
Optionally, master control components.
•
Optionally, automation, UMD, monitor walls, and other
subsystems.
Control Systems
The NV920 is a member of Miranda’s NV9000 family of sys-
tem controllers. In order of price and performance, the series
includes these control systems:
•
NV960
Each NV960 system controller is 2RU, has 2 disk drives,
and 3 PCI expansion slots. Two of the expansion slots typi-
cally provide Ethernet connections. The remaining expan-
sion slot can be used for other purposes such as
connecting serial devices.
Several models of the NV960 are available.
•
NV920
Each NV920 is 1RU and houses two system controllers.
Each system controller has 2 disk drives, 3 Ethernet ports,
and no expansion slots. However each NV920 does have
an RS-485 port that supports one serial device.
Several models of the NV920 are available. as listed on this
page.
•
NV915
Each NV915 system controller is 1RU, has one disk drive, 2
Ethernet ports, and no expansion ports. One of the Ether-
net port is available to support routers and control panels.
(Older NV915s had compact flash and no disk drive.)
The NV960, NV920, and the NV915 run the same software.
The NV920 is priced between the NV960 and the NV915.
A system controller is a device that (1) receives commands
from control panel operators or from third-party systems, (2)
dispatches instructions to routers, and (3) returns status
information to the control panels or to automation.
The NV920 product line includes these items:
•
NV920D. NV920 frame with dual controllers.
•
NV920S. NV920 frame with a single controller.
•
NV920-PRI. A primary NV920 system controller.
•
NV920-SEC. A secondary NV920 system controller.
•
NV920-FME. An NV920 frame only.
•
NV920-FRU. A “field replacement unit,” that is, a spare
system controller.
The NV920
The NV920 frame is a 1RU frame which contains a power sup-
ply having two removable power supply modules, and one or
two removable NV920 system controllers. See Figure 2.
One controller is labeled ‘Primary’ and the other ‘Secondary’.
These terms distinguish one from the other, but otherwise
have no specific meaning.
The NV920 frame has two power supply modules for redun-
dancy. In normal operation, both supplies operate in tan-
dem, sharing the load. If one power supply module fails, the
other immediately absorbs the full load.
If the NV920 frame has two system controllers, it is for redun-
dancy. One of the system controllers is active; the other is
stand-by. If the active system controller fails, the stand-by
system controller takes over.
NV920
Figure 1. Package Contents
QuickStart Guide
(this document)
Power cords
Software and
Documentation CD
