Equipment Overview; System Chassis - NEC ux5000 Hardware Manual

S 1-2
ECTION

Equipment Overview

1.2.1

System Chassis

There are three types of chassis:
●
9 1/2" base Chassis-B
●
9 1/2" expansion Chassis-E
●
19" Chassis-A
The first chassis (the Controlling Chassis-B with CCPU) provides 3 slots and a power supply. One slot in the
first chassis (Controlling Chassis) is used for the CCPU. Each expansion chassis (Chassis-E) provides 3 slots.
In a networked system using CygniLink and an IP connection, a second CCPU can be used for a CCPU Fail-
Over feature (primary/secondary CPUs) as a backup in case of a hardware or power failure. (The CCPUs must
be programmed for primary/secondary operation.)
To expand the system further, additional chassis can be added. Each Chassis-B can be combined with an
expansion chassis (Chassis-E) - the Chassis-B providing the power to the expansion chassis. A Chassis-B or
combined Chassis-B / Chassis-Es can be added. These chassis are then interconnected, for a maximum of 4
combined hard-wired Chassis-Bs and 4 Chassis-Es.
In place of combining a Chassis-B and Chassis-E to make a 19" chassis, you can use the 19" Chassis-A. This
chassis provides 6 slots and a power supply. The first slot in the chassis is used for the CCPU. The remaining
slots can be used for the various system blades required.
Up to 4 combined Chassis-B/Chassis-E or 19" Chassis-A can be connected locally. However,
in order to reach the system's maximum port capacity, additional chassis (either combined
Chassis-B / Chassis-Es or the 19" Chassis-A) must be added - connected by a VoIP
connection.
9.5"
3 slot
1 Main Chassis
32 ports
Chapter 1
19" 19"x2
6 slot 12 slot
1 Main Chassis 2 Main Chassis
80 ports 160 ports
Figure 1-1: Expansion Options
Chapter 1 - Installing the Chassis
19"x4
24 slot
4 Main Chassis
IP connection
320 ports
IP Expansion
512 ports
1 - 3