NEC Univerge SV8100 System Hardware Manual page 100

Issue 2.0
There are two 9.5" chassis, the Base and Expansion. The base unit has three
universal slots, one expansion slot and one MPS7101 (power supply unit). The
expansion unit has three universal slots, no expansion slot, and no power supply unit.
When the CD-CP00-US is installed in the first slot of the base chassis, it is called the
Controlling Chassis. Additional chassis, called Expansion Chassis, can be installed
to increase the capacity of the system to meet the customer's business needs.
As
(Base and Expansion) Maximum System Capacities – Trunks/Ports/Channels
illustrate, the system can be expanded from 104 ports to 512 ports by vertically
stacking a maximum of three additional chassis onto the controlling chassis. This
provides a maximum of 24 slots and 368 digital terminals. To obtain the maximum
port capacity of 512 ports, two systems can be linked together via an IP connection.
Up to four combined CHS2U B-US/CHS2U E (3-Slot Base/3-Slot Expansion) or
CHS2U-US (6-Slot) chassis can be connected locally to reach the system's maximum
port capacity.
2 - 8
Figure 2-3 9.5" Controlling and Expansion Chassis
EXAMPLE:
0 CHS2U-US (19" Chassis) & 4 CHS2U B-US/CHS2U E (9.5" Base Chassis/9.5"
Expansion Chassis)
1 CHS2U-US (19" Chassis) & 3 CHS2U B-US/CHS2U E (9.5" Base Chassis/9.5"
Expansion Chassis)
2 CHS2U-US (19" Chassis) & 2 CHS2U B-US/CHS2U E (9.5" Base Chassis/9.5"
Expansion Chassis)
3 CHS2U-US (19" Chassis) & 1 CHS2U B-US/CHS2U E (9.5" Base Chassis/9.5"
Expansion Chassis)
4 CHS2U-US (19" Chassis) & 0 CHS2U B-US/CHS2U E (9.5" Base Chassis/9.5"
Expansion Chassis)
UNIVERGE SV8100
and Table 2-3 SV8100 9.5"
SV8100 System Specifications