Controlling/Base Chassis-B (2U Chassis); Controlling Chassis-B Vs. Base Chassis-B Vs. Expansion Chassis-E - NEC ux5000 Hardware Manual

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ECTION

Controlling/Base Chassis-B (2U Chassis)

1.3.1

Controlling Chassis-B vs. Base Chassis-B vs. Expansion Chassis-E

In the UX5000 system, there are three different versions of chassis - the 9.5" Base Chassis-B, the 9.5"
Expansion Chassis-E, and the 19" Chassis-A. This section will detaiil using the 9.5" chassis.
In this documentation, the first chassis in the system requires a CCPU and is called the Controlling Chassis.
This is a Base Chassis-B with a CCPU installed. The system can then be expanded by attaching an
Expansion Chassis-E to the right of the first chassis. When expanding a system past two chassis, the next
chassis is a Base Chassis-B (without a CCPU), which can then also have an Expansion Chassis-E attached.
Each chassis measures 9.5 inches wide and 4.25" high. With an Expansion chassis connected, the maximum
width is 19 inches.
The Chassis-B provides the power supply, connections on the power supply unit for an external backup
battery, 3 universal slots for the CCPU and other optional blades (such as ESIU, SLIU, COIU, etc.) and an
EXIFU (expansion) slot. All slots are connected to the backplane.
A Chassis-B can be combined with an Expansion Chassis-E. Additional pairs of Chassis-B/Chassis-E's can be
connected to the system (up to 4 chassis sets maximum). Expansion Interface Units (EXIFU-B1 and EXIFU-
E1) are installed in the EXIFU slot in the Chassis-Bs (base chassis). The connection to the Expansion Interface
Unit is made using a CAT 5 cable.
The Controlling Chassis-B is used to install the system blades, including one slot for the CCPU. It can
accommodate up to 16 trunk ports and 32 ports extension ports. An Expansion Chassis-E can be installed to
the right of the Controlling or Base Chassis-B to accommodate an additional 48 ports (40 trunk/80 stations
max.). With a maximum of 4 Chassis-Bs and 4 Expansion Chassis-Es or 4 19" Chassis-As, the system will
provide up to 184 trunks and 320 extensions and, with IP connections, a maximum of 200 trunk ports (128 IP
trunks max.) and 512 station ports is possible.
To reach these limits, a MEMDB would be required as well as a license for the expanded ports.
Chapter 1
Figure 1-3: CHASSIS-B - FRONT
Chapter 1 - Installing the Chassis
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