Expansion Ksu-E - NEC UX5000 Hardware Manual

S 1-4
ECTION

Expansion KSU-E

1.4.1
Expansion KSU-E
The Expansion KSU-E is used to install additional system PCBs and connects to the right of the Controlling/
Base KSU-B. Combined with the Controllling/Base KSU-B, it can accommodate up to 96 ports (40 trunk/80
stations max.). With a maximum of 4 hard-wired Controlling/Base KSU-Bs and 4 Expansion KSUs, 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.
Each KSU measures 9.5 inches wide. A Controlling/Base KSU with an Expansion KSU connected is a total of
19 inches.
The Expansion KSU provide 3 universal slots for the optional PCBs (such as ESIU, SLIU, VOIPU, etc.) and an
EXIFU (expansion) slot. All slots are connected to the backplane. The Controlling/Base KSU provides the
power through the backboard connector.
A KSU-B can be combined with an Expansion KSU-E,. Additional pairs of KSU-B/KSU-E's can be connected to
the system (up to 4 KSU sets maximum). Expansion Interface Units (EXIFU-B1 and EXIFU-E1) are installed in
the EXIFU slot in the KSU-Bs (base KSUs). The connection to the Expansion Interface Unit is made using a
CAT 5 cable.
Chapter 1
●
The Expansion KSU must only be installed with the system power OFF.
Figure 1-6:
Chapter 1 - Installing the KSUs
! Important !
KSU-E
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