Toshiba Perception Electronic Business Communications System Installation And Maintenance Manual

This section describes the installation
proceduresnecessary to ensure proper operation
of the PERCEPTION system.
When the PERCEPTION system is re-
ceived,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.
Check the PERCEPTION system against
the purchase order and packing slip. If it is deter-
mined that equipment is missing, contact your
supplier imm~djately.After unpacking (before the...

Conventional telephone-500 ohms (including
telephone)AI .” :/. 1
Attendant Console-1000 cable feet (24 AWG)
Acceptable cable for all telephones is
22 or 24 AWG twisted pair inside telephone
station cable, jacketed but not shielded. Two
twisted pairs are required for an EKT and one
pair for a conventional telephone.
A 
25pair cable is required for the
ant console. The console is equipped with
a male 50-pin amphenol-type connector.
The PERCEPTION system requires a
solid earth ground on the ground...

consists of a single, free-standing cabinet mounted
on casters for easy movement. Assembly of the
DCEC consists of installing the disk drive/ringing
supply subassembly (DFRA), the power supply
assembly (DPSA), and the various printed circuit
boards 
(PCBs).
5.
~stal~atio~
5.14The DFRA subassembly, housing the
Disk Drive 
(DFDD) and the ringing supply
(DRGU), is mounted on the top shelf of the DCEC.
To install the DFRA:
a)
b)
4
d)
e)
f)Loosen the 
6 screws securing the rear cover
of the DCEC and lift the...

g) Secure the DFRA to the front of the DCEC
using the 4 screws removed earlier.h) Replace the DCEC rear cover and tighten
the 6 screws.
Power Supply installation
05.21The DPSA (Figures 6 and 7) consists of
a single metal chassis. Circuit breakers and LED
indicators for each output, along with an AC
FF switch, are located on the front panel.
An AC power cord, green ground wire and two
connectors are found on the rear of the unit.
The two connectors are labeled 
J201 and J202and will receive the two mating...

4
b)
d)Remove and save the two screws located in
the upper corners of the 
DCEC connector
panel (Figure 
1 I).Loosen the thumb screws that are provided
for securing the connector locking
the connector panel can move freely 
(FThe connector panel is hinged on the bottom;
lower it carefully to expose the internal wiring.
Locate the 
twe plastic connectors in-
tended for the
Remove the tape secur-
ing their
cablestothe bottom of the Dand ensure that they are positioned so as
be damaged or cause damage when...

slot switching on the DSWU PCB and supplies
the system tones.
DCCU (Central Control Unit)--one per system:
Contains the system central processor andmain memory. Performs all system control
functions.
DPEU (Peripheral Equipment Interface Unit)-one
per system:
Performs data transmission and receiving func-
tions between the central control, and all
peripheral equipment, including:(Station 
PCBsTrunk 
PCBs

L-
a
Q
3
cl
L--
cI
i“.\ “’ 

2-6 (housing six circuits) is available. Only one
operated in an Immediate Start, Delay Dial,
DRCU per system is permitted.
or Wink Start mode. Each DEMU occupies
a DCOU position and, therefore, a maximum
DPMU (Paging and Music-on-hold Unit)-oneof eight may be installed in a system.per system:This 
PC6 is required in every system, and per-DEKU (Electronic Key Telephone Unit):
forms several miscellaneous functions.Interfaces eight 
EKTs to the system. It is also
used as 
thrxendant console interface....

and 600/900-ohm termination options that must
be selected before they are installed:
a) Ground/Loop Start selections are made 
in-dividually for each of the four circuits using
the strapping terminals (Figure 21).shorting bar that can connect any one pair
of adjacent pins. Select the desired option
according to the following table. (Note; the
table is printed on each DCOU PCB for 
ref-erence.)
OPTIONSTRAP PINS
TB 
102-Circuit ‘ITB 
202~Circuit 2
TB 302-Circuit 3
TB 
402-Circuit 4NO EXTEND
D-EEXTEND
B-C...