NEC ElectraElite 48, Руководство по аппаратному обеспечению системы

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Issue 6 Electra Elite
1 - 4 Introduction
S
ECTION
2
E
QUIPMENT
D
ESCRIPTION
2.1 Equipment List
The following table lists all equipment used with the Electra Elite 48
system. The equipment name, a description of the equipment, and
the KSU quantities allowed for each unit are included. The list is
arranged alphabetically by category.
The following maximum values are based on the assumption that at
least one Electronic Station Interface ETU and one Trunk Interface ETU
are installed
Equipment Name Description
KSU Maximum
Quantities
Key Service Units, Power Supply Units, and Adapters
B48-U10 KSU
The Basic Key Service Unit (KSU) for the Electra Elite System
provides service for outside lines, Attendant Consoles, and
interconnection of the station terminals. The basic KSU provides 48
ports.
The B48-U10 KSU provides seven slots. Slot 1 is an ESI card that
is built-in on the MBD-U10 Unit. Slot S2 is the ISA slot. Slots
S3~S6 are interface slots with MDF connections. Slots S2 and S7
have no MDF connections and may be used for ETUs that do not
require MDF connections (
e.g.
, MIFM, PBR, VRS, or VMS).
The P64-U10 PSU (power supply unit), backup batteries, one PFT
connection, and one external zone paging connection are included
with each KSU.
1 per system
P64-U10 PSU The Power Supply Unit is included with the B48-U10 KSU. 1 per system
Common Electronic Telephone Units
CLKG-U( ) Unit
The Clock Unit provides synchronization for FT1
,
ISDN Basic Rate,
and ISDN Primary Rate connections. The unit is mounted on the
MBD-U10 Unit in the B48-U10 KSU and supports the DTI-U( ),
BRT(4)-U( ), PRT(1)-U( ), and BSU(2)-U( ) ETUs.
1 per system with FT1,
ISDN-BRI, ISDN-PRI or
Wireless connections
KMM(1.0)U
This unit is installed on the MIFM-U( ) ETU and adds LCR and
Caller ID scrolling and dialing features.
1 per
MIFM-U10 ETU