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INSTALLATION INSTRUCTIONS
SECTION 200-255-201
FEBRUARY1992
NDCU-Data Control Unit
NDKU-Digital Telephone, Digital DSS, PDIU-DI,
PDIU-DS Unit
NDSU-DSS
Console Controller Unit (Electronic
Telephone)
NDTU-Digital Trunk Unit
NEKU-Electronic Telephone Unit
NEMU-E
& M TIE Trunk Unit
NFDU-Floppy Disk Drive Unit
NLSU-DID Trunk Interface Unit
NMDU-Modem Pooling Unit
NOCU-Off-hook Call Announce Interface Unit
NPRU-Paging and Music-on-Hold Unit
NPSA-M-PERCEPTlONe
Main Power Supply
NPSA-S-PERCEPTIONehex
Expansion Power
SUPPlY
NRCU--Receiver Unit
NSTU-Standard Telephone Unit
NTWU-Time
Switch Unit
PCB-Printed
Circuit Board
PDIU-DI-Integrated
Data Interface Unit (Digital
Telephone)
PDIU-DB-Stand-alone Data Interface Unit (Key-
board Dial)
TTY-Teletypewriter
UNA-Universal Night Answer
5. INSPECTION,
PACKING and STORAGE
5.00 Inspection
5.01
When the system is received, examine all
packages and make careful note of any visible
damage. If any damage is found, bring it to the
attention of the delivery carrier and make the proper
claims.
5.02 Check the system against the purchase order
and packing slip. If it is determined that equipment
is missing, contact your supplier immediately.
5.03 After unpacking (and before installing), in-
spect all equipment for damage. If any is detected,
contact your supplier immediately.
CAUTION!
When handling (installing, removing, ex-
amining, etc.) prin ted circuit boards (PCBs),
do not touch the back (soldered) side or
edge connector. Always hold the PCB by
its edge whenever handling it.
5.10 Packing and Storage
5.11 When storing or shipping PCBs, be sure they
are packed in their original antistatic bags for pro-
tection against static discharge.
5.20 Required Tools
5.21 Installation of the PERCEPTIONeLe, systems
requires standard telephony tools. A 13mm socket
wrench and extension is recommended for ease of
expansion cabinet installation.
PFT-Power
Fail Transfer
SMDR-Station
Message Detail Recording
1-2
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