19" Chassis-A (2U Chassis); 19" Chassis-A - NEC ux5000 Hardware Manual

S 1-5
ECTION

19" Chassis-A (2U Chassis)

1.5.1

19" Chassis-A

In this documentation, the first chassis in the system requires a CCPU and is called the Controlling chassis.
The system can then be expanded by attaching a total of 4 chassis directly together. Additional chassis can
be connected together using an IP connection to allow for a maximum of 200 trunks and 512 extensions.
The Chassis-A provides the power supply, connections on the power supply unit for an external backup
battery, 6 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.
When the Chassis-A is combined with additional chassis, Expansion Interface Units (EXIFU-B1 and EXIFU-
E1) are installed in the EXIFU slot in both chassis. The connection to the Expansion Interface Unit is made
using a CAT 5 cable.
The Controlling Chassis-A is used to install the system blades, including one slot for the CCPU. It can
accommodate up to 96 ports (40 trunk and 80 extension ports). Additional chassis can be connected
together to accommodate additional ports. With a maximum of 4 Chassis-As, the system will provide up to
184 trunks and 320 extensions and, with IP connections, a maximum of 200 trunk ports 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 1-14: CHASSIS-A - FRONT
Chapter 1 - Installing the Chassis
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