Toshiba Perception Electronic Business Communications System Installation And Maintenance Manual

If a station user calls a controlled trunk: 
1) User dials the access code. 
Console signals. 
The LPK LED flashes. 
ICI lights and SRC and COS are displayed. 
2) Depress the appropriate m-1 key. 
The LPK LED lights. 
A voice connection is established with 
caller. 
NO TE. 
lfa trunk is available, proceed as in ,*Through 
Dialing,‘. If no trunk is available, take the 
cat/et--s name and station for a ca//back and 
then release. 
To pass a trunk to a station: 
I) Depress an idle m] key. 
The LPK LED...

.53. Your system automatically records the 
ails of some or all of the calls you make to or 
receive from outside the system. Recorded calls 
may be assigned account numbers for billing pur- 
poses ( digits). 
Perform the following before extending 
.53.3 To record an account number: 
I) Start from a standard voice connection. 
The LPK LED is on. 
ICI and SRC displays are on. 
2) Depress the 
PER/m key. 
Connection goes on hold. 
The VER/CHG LED lights. 
3) Dial account number on the dial pad 
t digits)....

NO TE. 
The time is displayed and entered in the 24- 
how **military,’ form (for any hour after 12 
noon, add 12). 
e.g. 9:30 AM is 093000 
9:30 PM is 2 13000 
To start the clock and clear the display: 
Depress the mSem/ key a third time. 
Display clears 
It is possible.for the Attendant Console 
o cancel all Call Forwarding arrangements set up 
by station users. 
To cancel all call forwarding: 
press and idle nw] key. 
The RLS LED goes off. 
The LPK LED lights. 
I the call forwarding cancel code 
All...

I FLOW CHART SYMBOLS. a . . . . . . . . . . . . . . . . . . . . . . . .s. . . . . . . . . . . . . . . . . . 
2 DCEC BACKPLANE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
4;  TABLE of CONTENTS. 
.............................................. 
i 
GENERAL ........................................................ 
‘I 
FAULT CLASSIFICATION 
........................................... ‘I 
FAULT CLEARING PROCEDURES 
.................................... 1...

Q-i.01 This section describes the maintenance 
procedures used for the diagnosis of faults in the 
PERCEPTION Electronic Business Communication 
systems. Faults are classified and then cleared by 
replacing apparatus and performing operational 
tests in the sequences prescribed by the fault 
clearing flow charts in Paragraph 05. 
Q2.01 A fault classification flow chart is pro- 
vided to ensure that fault clearing is pursued in 
a logical sequence (Chart No. II. 
Q2.02 In the flow charts an assumption is...

START AND END OF 
A FLOW CHART SEQUENCE 
IMPORTANT NOTES 
AFFECTING THE FAULT 
CLEARING PROCEDURE 
PROGRESSION TO OR FRO 
ANOTHER FLOW CHART LOC 
LETTER WILL DENOTE EXACT E 
0 
OR EXIT POINT TO/FROM SPECIFIC FLOW CHART (FC) 
I 1 
STATEMENT OF A 
REQUIRED ACTION 
When defective PERCEPTION appa- tag can remain attached during the testing and 
repair process. 
ratus is shipped for repair, the apparatus must CM.03 If different and/or additional faults are 
be packed in a suitable container (an original...

5) At the modular block, measure the resistance 
between all wire combinations. The proper 
NOTE: 
Perform the following at the locations in- 
dica ted: 
7. Modular block: Check all station cables. 
2. MDF: Check cables from DEKlJ to MDF. 
1) Disconnect the EKT. 
2) Using a DC voltmeter, measure between the 
wires of the two pairs to verify the presence 
of the following readings: 
24 
24 
24 
1 R Red 2 R Yellow 24 
I T Green 1 R Red 0 
2 T Black 2 R Yellow 0 
3) An improper reading indicates an open,...

Please read the 
maintenance 
procedures before 
Start here to 
classify faults gn 
the PERCEPTION 
YES 
Switch main circuit 
breaker (power) 
to ON. 
* Wait approx. 30 
seconds for the 
system to load. NOTE: See Section 
IO@ 100-200, 
Installation, 
Paragraphs ll.Ol& 
11.02 (System 
Power-up). 
NO  

To 
NO 
To 
NO 
YES 
NO 
YES 
NOTE: This is 
no fault. To 
extinguish the 
LED, set time and 
date on attendant 
console or with 
the LYTRF Program. Fro 
FALT LED on 
NO 
NO 
NO 
NO 
To 
YES 
To 
NOTE: Verify