General Information; Basic Ksu; Expansion Ksus; Removing The Ksu Cover - NEC Electra Elite IPK II System Hardware Manual

Document Revision 3
___________________________________________________________________________________
3.1
3.2
___________________________________________________________________________________
5 - 10

General Information

3.1.1

Basic KSU

The B64-U20 KSU provides service for outside lines, Attendant
Consoles, and interconnection of the station terminals. The B64-U20
KSU has two fixed and eight flexible slots. The first fixed slot is
reserved for the CPUII( )-U( ) ETU in the basic KSU or for the
EXP-U( ) ETU in expansion KSUs. The second fixed slot is not used
in the Electra Elite IPK II KSU. The P64-U10 PSU (power supply
unit), backup batteries, and three PFT relays are included with each
KSU.
3.1.2

Expansion KSUs

The B64-U20 KSU is also used as the expansion unit that can be
attached to the basic KSU to provide additional ports. Two expansion
units can be added to the Electra Elite IPK II system. Each
expansion KSU provides eight flexible slots and accommodates
8-, 16-, or 24-channel interface cards. The P64-U10 PSU (power
supply unit), backup batteries, and three PFT relays are included
with each KSU.
The installation instructions provided in this chapter apply to the
basic B64-U20 KSU and the expansion B64-U20 KSUs unless
otherwise specified.

Removing the KSU Cover

To access the battery, cables, and ETU slots, the front cover must be
removed.
1. Loosen the screw that is located near the ON/OFF switch, on the right
side of the KSU. Do not remove the screw from the unit.
Electra Elite IPK II
Installing KSUs