NEC UX5000, Руководство по оборудованию, Страница: 21 / 334

Chapter 1 - Installing the Chassis
Chapter 1 1 - 9
S
ECTION
1-4
Expansion Chassis-E
1.4.1
Expansion Chassis-E
The Expansion Chassis-E is used to install additional system blades and connects to the right of the
Controlling/Base Chassis-B. Combined with the Controllling/Base Chassis-B, it can accommodate up to 96
ports (40 trunk/80 stations max.). With a maximum of 4 hard-wired Controlling/Base Chassis-Bs and 4
Expansion chassis, 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.
Each chassis measures 9.5 inches wide. A Controlling/Base chassis with an Expansion chassis connected is a
total of 19 inches and 4.25 inches high.
The Expansion chassis provide 3 universal slots for the optional blades (such as ESIU, SLIU, COIU, etc.) and
an EXIFU (expansion) slot. All slots are connected to the backplane. The Controlling/Base chassis provides
the power through the backboard connector.
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.
Figure 1-6: CHASSIS-E
! Important !
●
The Expansion chassis must only be installed with the system power OFF.