Toshiba Strata S Electronic Key Telephone System Installation And Maintenance Manual

							: 
.I -; . ‘-- OPERATING PROCEDURES 
SECTION 10&00340 
JULY 1994 - 
1) Remove the handset from its hook (do not 
activate the intercom .or a CO line). 
2) Depress the 
q and q k&s, respectively. 
3) Dial a 2-digit address code. 
l Codes run consecutively from 60 through 
99. 
4) Dial the telephone number (up to 16 digits) to 
be stored. 
NOTE FOR BEHIND PBX: 
It may be necessary to insert a pause after the 
trunk access code to 
allow for dial tone delay. 
Depress the [ml key (if the pause is 
required) after entering the PBX access code. 
5) Depress the 
q key to record the number in 
memory. 
6) Repeat the above steps with every number, 
up to 40, to be stored. 
7) Return the handset to on-hook. 
8) Write down the address codes and numbers 
for future reference. 
NOTE: 
Repeat this procedure to replace the stored 
telephone numbers with new numbers. 
06.06.6 To store a telephone number in station 
memory 
Ten telephone numbers may be stored by each 
station. 
A) Repertory dialing using the a key. 
1) 
2) 
3) 
4) Lift the handset (do not activate the inter- 
com or a CO line). 
Depress the m and a keys, respectively. 
Dial a 2-digit address code. l Codes run consecutively 10 - 19. 
Dial the telephone number (up to 16 digits) 
to be stored. 
NOTE FOR BEHIND P0X: 
It may be necessary to insert a pause after the 
trunk access code to allow for dial tone delay. 
Depress the [hnw/FI] key (if the pause is 
required) after entering the P8X access code. 
5) Depress the@ key to record the number in 
memory. 6) Repeat the above steps with every number 
(up to 10) to be stored. 
7) Return the handset to on-hook. . 
8) Write down the address codes and numbers 
for future reference. 
NOTE: 
Repeat this procedure to replace the stored 
telephone numbers with new numbers. 
6) One-key automatic dialing using the m keys. 
1) Lift the handset (do not activate the inter- 
com or a CO line). 
2) Depress the 
q key. 
3) Depress one of the IAD keys. 
4) Dial the telephone number(up to 16 digits) 
to be stored. 
NOTES: 
1. 
2. 
5) 
6) 
7) 
8) 
Each AD key actually uses one of the 
station memory address codes ( jml) = 
10, m2] = 1 I, etc.). . 
fFOR BEHIND PBX)-It ma y be necessary* 
to insert a pause after the trunk access 
code to allow for dial tone delay. Depress 
the IMW/FLI key (if the pause is required) 
after entering the PBX access code. 
Depress the@ key to record the number in 
memory. 
Repeat the above steps with every number 
to be stored. 
Return the handset to on-hook. 
Write down the address codesand numbers 
for future reference. 
NOTE: Repeat this procedure to replace the 
stored telephone numbers with new numbers. 
06.06.7 TO output 
q and q tones 
When the special 
q or q tones must be output 
(for computer input service or other use), the 
Automatic Dialing feature must be disabled to 
permit manual dialing of the a and m tones. 
,.-A 
1) 
Depress any available m key. 
2) Dial any desired telephone number (either 
manually or by utilizing the Automatic Dial- 
ing feature in the usual manner). 
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							-3) To disable the -Automatic Dialing feature, 
thereby permitting the 
q and q tones to 
output manually, first press the 
q key and 
then the 
q key. 
NOTE:  NOTE: 
Manual dialing only will be possible and the  Manual dialing only will be possible and the 
special 
q and q tones, as well as digits q special q and q tones, as well as digits q 
mm. will be output as dialed. The Automatic  mm. will be output as dialed. The Automatic 
Dizihg feature &llberestoredwhentheEKT 
is hung up. or the CO line is placed on hold. 
06.07.0 On-hook Dialing 
Non-speakerphone models-see Paragraph 07 
for speakerphone model EK Ts. 
06.07.1 To make an outside call 
1) Leave the handset on-hook. 
2) Depress any available m key. 
l Listen for dial tone. 
l CO LED will flash at the l-use rate. 
3) Dial the desired telephone number. 
4) Lift the handset when the distant party 
answers.* 
5) Hang up when the call is completed. 
06.07.2 To make an intercom call 
1) Leave the handset on-hook. 
2) Depress the m key. 
0 INT LED will flash at the l-use rate. 
3) Dial the desired station number. 
l You will hear a single ring tone.* 
4) Lift the handset to converse. 
5) Hang up when the call is completed. 
*If busy tone is heard, depress the pl key 
to disconnect. 
.06.08.0 Handsfree Monitoring 
See Speakerphone for speakerphone model EK Ts. 
Calls placed on hold by the distant party may be 
monitored “Handsfree.” 
1) Depress and hold the lwj key. 
2) Place the handset on-hook. 
3) Release the I=] key. 
l Sounds from the distant party will be 
heard via the EKT’s speaker. OPEfWlNG PROCEDURES 
‘. 
SECTION 19940349 
JULY 1994 
4) Lii the handset to continue the conversation 
when the distant party returns. 
06.09.0 Group Listening 
The group listening feature allows all persons 
present to hear the distant party’s responses. 
Depress and hold the IsPKRl key. 
l SPKR LED lights and distant party’s voice is 
heard via the EKT’s speaker (handset is off- 
hook but inoperative). 
When local response is required: 
l Release the m key. 
l SPKR LED goes off. 
l EKT speaker is silenced. 
l Handset is activated. 
Repeat as required. 
06.10.0 Paging 
06.10.1 To page 
1) Lift the handset. 
2) Depress the m key and dial 
q for all 
speakers(EKT and external).’ - -- 
3) Make your announcement twice in a normal 
voice level. 
4) Hang up. 
06.11 .O Override 
06.11 .l To initiate a busy override signal 
After reaching a busy station, you may signal that 
station that a call is waiting by dialing m. 
l A tone signal will be heard at the busy station- 
06.11.2 To override DND (programmable option) 
After reaching a DND station, you may signal that 
station that a call is waiting by dialing 
q . 
l A tone signal will be heard at the DND station. 
06.11.3 To use executive override (program- 
mable option) 
Overrides the CO line and intercom privacy fea- 
ture, and is able to enter any existing conversation 
within the system. Only two stations can be pro- 
grammed for this feature. 
You may enter any conversation on any CO/PBX -. 
line or the intercom by &pressing the appropriate 
key. . 
l A warning tone, however, is sounded before 
the overriding station is actually connected. 
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							OPERATJNG PROCEDURES 
SECTION 106-693469 
JULY 1994 
w.. - 
06.12.0 Do Not Disturb 
06.12.1 
To engage the Do Not Disturb mode 
Depress the ml key. 
0 DND LED will light steady. 
06.12.2 To release Do Not Disturb 
Depress the jml key. 
l DND LED will go off. 
07 Strata 
07.00.0 1 O-key EKT 
S OPTIONS 
07.00.1 The optional lo-key EKT, in initialized 
mode, is equipped with 14 line and feature keys 
including three CO keys, an intercom key, (DNDI, 
and I-1 keys are not equipped with LEDs 
(however, the AD LEDs do not operate). See Para- 
graph 07.30.0 for details of the programmable 
special feature keys. 
07.10.0 BLF 1 O-key EKT 
07.10.1 The optional BLF lo-key EKT has an 
LED panel showing the busy/idle status of each 
station. A station in the DND mode will show as 
busy. 
07.20.0 20-key EKT 
07.20.1 The optional executive telephone (20- 
key EKT) provides, in initialized mode (via ten addi- 
tional feature keys), all keys mentioned above in 
the 1 O-key description, plus 10 DSS keys. 
07.30.0 Special Key Functions 
07.30.1 Each EKT may have various special 
feature keys in place of or addition to the keys 
described previously. This paragraph outlines 
these keys: 
REDIAL KEY (RDII 
Will automatically redial the last telephone number 
dialed after accessing a CO line. 
REPERTORY KEY m 
Provides access to automatic-dialing address 
codes. 
PAUSE KEY m 
Applies a pause after the CO line access code in 
telephone numbers behind a 
key will not perform this func- 
tion, on this unit it is used to store a timed flash. ALL CALL KEY m 
Causes an All Call page throughout the system 
(including both EKT and external speakers) if 
depressed while the intercom line is idle.‘ 
DIRECT STATION SELECTION (DSS) KEYS 
110-171 
Each DSS key corresponds to the intercom num- 
bers of the respective EKTs. The LEDs on these 
keys indicate the busy lamp field. When the inter- 
com line is not busy (the station LED is not lit), 
depressing a DSS key assigned to an EKT which is 
neither busy nor in DND will ring the station. 
07.40.0 Automatic Dialing with Special Keys 
07.40.1 To dial a frequently called number 
automatically 
Telephone numbers can be dialedb y either an m 
or by using the m key and a 2-digit address 
code in the usual 
Strata S manner. 
1) Lift the handset. 
2) Depress any available m key. 
l Listen for dial tone. 
* 
3) Depress the m key and dial the 2-digit 
address code corresponding to the desired - 
telephone number. 
l Strata S will automatically dial the 
number for you. 
07.40.2 To redial the 
automatically 
1) Depress any available last number called 
m key. 
l Listen for dial tone. 
2) Depress the m key. 
l Strata S will automatically dial the 
last telephone number that was dialed 
from that station. 
3) Hang up when the call is completed. 
07.40.3 TO OlJ@NJt the q and @ tones 
NOTE: 
The 
q and q keys will not have the func- 
tions they perform on an EKT in initialized 
mode; they are now free to use for computer 
access. 
1) Depress any available a key. 
2) Dial any desired number in the usual manner. 
3) Depress either the 
q or q key, permitting 
the 
q or q tone to be output.  
						

							e.. 
0740.4 To store telephone numbers 
W 
3A) 
W 
38) 
4) Lift the handset (do not activate the intercom 
or a CO line). 
Depress the (RDLI and m keys, respec- 
tively. 
Dial a 2-digit address code. 
l Codes run consecutively 10 - 19. 
. . . or. . . 
Depress the m key. 
Depress an @ key. 
Dial the telephone number to be stored (16 
digits maximum). 
NOTE FOR BEHIND PBX: 
It may be necessary to insert a pause after the 
trunk access code to allow for dial tone delay. 
Depress the m key (if the pause is re- 
quired) after entering the PBX access code. If 
a PBX feature access code is being stored, a ’ 
timed flash may be stored by depressing 
the m] key. 
5) Depress the m key to record number in 
memory. 
6) Repeat the above steps with every number to 
be stored (up to 10). 
7) Return the handset to on-hook. 
8) Write down the address codes and telephone 
numbers for future reference. 
NOTES: 
1. 
2. Repeat this procedure to replace the 
stored telephone numbers with new 
numbers. 
The m and 
q tones may be output by 
automatic dialing when the m key is 
used for system or station telephone 
number storage of 
q and @ tones. 
0750.0 Speakerphone 
07.50.1 To make an outside call with speaker- 
phone (on-hook dialing) 
1) Leave the handset on-hook. 
2) Depress any available fcol key. 
l Listen for dial tone. 
l CO LED will flash at the l-use rate. 
3) Dial the desired telephone number. OPERATING PROCEOURES 
SECTION 100-003-400 
JULY1984 
4) Speak at a normal voice level in the direction 
of the telephone. 
5) Depress the m key when the call is 
completed. 
0750.2 To receive an incoming call (on 
speakerphone) 
1) 
a 
3) 
4) 
5) You will hear a ringing tone. 
Leave the handset on-hook. 
Depress the appropriate m key (LED that is 
flashing at the CO incoming call rate). 
l CO LED will flash at the l-use rate. 
Speak at a normal voice level in the direction 
of the telephone. 
Depress the m key when the call is 
completed. 
07.50.3 To call on intercom with speakerphone 
(on-hook dialing) 
1) Leave the handset on-hook. 
2) Depress the m key. 
l Listen for intercom dial tone. 
l INT LED will flash at the l-use rate. 
3) Dial the desired station number. 
l You will hear a single ring tone. 
4) Speak at a normal voice level in the direction 
of the telephone. 
5) Depress the ml key when the call is 
completed. 
07.50.4 To receive an intercom call (handsfree) 
1) You will hear a single long tone followed by 
the caller’s voice. 
l The INT LED will be flashing at the I- 
called rate. 
2) Leave the handset on-hook. 
3) To assure a private conversation, depress 
the m key.* 
l The INT LED will flash at the l-use rate. 
4) Speak at a normal voice level in the direction 
of the telephone. 
5) Depress the mkey when the call is com- 
pleted (if you depressed the m key earlier). 
*If privac y is not required, it is not necessary 
to depress the m key. However, any other 
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							. OPERATING PROCEDURES 
SECTION 190-90349 
JUtY 1994 - 
station can access the intercom by depress- 
ing the (INTI key (this also cancels the con- 
nection with the answering station. 
NOTES: 
To change from speakerphone to handset 
l Lift the handset. 
To change from handset to speakerphone: 
1. Depress and hold the lsPKR[ key. 
2. Return the handset to on-hook. 
3. Release the I=] key. 
-lO-  
						

							TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM FAULT FINDING 
SECTION 100-003-500 
JULY 1984 
Strata S 
- FAULT FINDING. 
PROCEDURES 
,..-  
						

							TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM FAULT FINDING 
SECTION 19D-903-990 
JULY 1994 
v.. - 
Strata S 
FAULT FINDING PROCEDURES 
TABLE of CONTENTS 
PARAGRAPH SUBJECT PAGE 
01 
02 
03 
04 
05 TABLE of CONTENTS ........................ i 
GENERAL 1 
FAULTCLAW-FIcAT;OI;‘::::::::::::::::::::::: 1 
FAULT CLEARING PROCEDURES ................... 1 
DEFECTIVE APPARATUS RETURNS 1 
................... 
FIGURE 1 -Flow Chart Symbols .................... 2 
FAULT IDENTIFICATION & ELIMINATION PROCEDURES ......... 2 
TABLE A-Station Continuity Check Using Voltmeter .......... 2 
TABLE B-Station Continuity Check Using Ohmmeter .......... 3 
CHART NO. l-Fault Classification .................. 4 
CHART NO. 2-Power Faults ...................... 6 
CHART NO. 3-Station Faults ..................... 8 
CHART NO. 4-MKSU Faults ..................... 9 
CHARTNO.5-COLineFaults 
...................... 10. 
CHART NO. 6-MOH Faults ...................... 11 
CHART NO. 7-Page Faults ...................... 12 
CHART NO. &-Power Failure Transfer Faults .............. 13 
,r-  
						

							e.. 
01 GENERAL 
01 .Ol This section describes the maintenance 
procedures used for the diagnosis of faults in the 
Struta S electronic key telephone system. 
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. 
02 FAULT CLASSIFICATION 
02.01 A fault classification flow chart is pro- 
vided to ensure that fault clearing is pursued in a 
logical sequence (Chart No. 1). 
02.02 In the flow charts an assumption is made 
that the fault was discovered and reported by an 
EKT user. All faults, therefore, are classified ac- 
cording to the way they would appear at the EKT. 
02.03 Faults and associated flow charts are 
organized into the following categories: 
Flow Chart Title 
1 Fault Classification 
2 Power Faults 
3 Station Faults 
4 MKSU Faults 
.5 CO Line Faults 
6 MOH Faults 
7 Page Faults 
8 Power Failure Transfer 
Faults 
03 FAULT CLEARING PROCEDURES 
03.01 Before attempting to clear any fault, 
ensure that it is in the StrsesSsystem and not 
caused by 
associated external equipment, such as 
wiring, MOH source, etc. 
tMPORTANTI 
Many features of the Strata S are as- 
signed, enabled or disabled using software 
entries as described in System Program- 
ming. Further, with the exception of Pro- 
grams 5XX - SXX. programming changes 
are not effective untilthe SETswitch on the 
MKSU has been released and the MKSlJ 
power switch has been cycled off/on (shif- 
ting the new data into permanent mem- 
ory). It is important to verify that the sys- 
tem programming is correct and functional 
before troubleshooting the hardware. 
fn new systems, the initi8liz8tionprocedure 
FAULT FINDING 
SECTION 1 OO-G03-500 
JULY 1994 
must be performed before testing. The sys- 
tem data stored on the MMAU will be pro- 
tected from loss by 8 backup battery on 
that PCB. Therefore, the initi8liiztion se- 
quence should not be performed on 
an 
existing system. 
03.02 Faults in 
the Struta S are cleared by 
replacing PCBs, EKTs or the power supply, as 
instructed in the flow charts. 
03.03 Five symbols are usad in the flow charts. 
These symbols are identified in Figure 1. 
03.04 The flow charts are sequentially arranged 
topermit rapidfault localizationwith the 
Strata 
S system. All fault clearing must begin with the 
Fault Classification Flow Chart, which is arranged 
in the correct fault locating sequence. 
03.05 The following precautions must be 
observed when handling PC8s. 
DO NOT: 
Drop a PCB. 
Stack one PCB on top of another. 
Handle a PCB without discharging any static 
electricity from your person by touching a 
metal part of the grounded MKSU. 
Touch the PCB contacts with your fingers. 
/MPORTANTI 
If the f8uh is not cleared by substituting 8 
PCB, the original PCB must be reinstalled 
in the MKSU. 
04 DEFECTIVE APPARATUS RETURNS 
04.01 When defective Strata S apparatus 
is shipped for repair, the apparatus must be 
packed in a suitable container (an original type box 
is highly recommended). 
a) Anti-static container for the ACOU PCB. 
b) Plastic bags for EKTs, M)GU, etc. 
84.02 NEVER WRITE CiN THE APPARATUS -. 
ITSELF! Describe the-*-nature of the defect on 
an information tag, and attach the tag to the front 
of the unit with string (not wire) so that the 
tag can remain attached during the testing and 
repair process.  
						

							. FAULT FINDlIG 
SECTION 100-003-500 
;flllY 
1994 . - ‘. 
- 
START AND END OF 
A FLOW CHART SEQUENCE 
IMPORTANT NOTES 
AFFECTING THE FAULT -- 
CLEARING PROCEDURE 
t 
QUESTION TO BE ANSWERED 
YES OR NO 
PROGRESSION TO OR FROM 
ANOTHER FLOW CHART LOCATION. 
LETTER WILL DENOTE EXACT ENTRANCE 
0 
OR EXIT POINT TO/FROM SPECIFIC FLOW CHART [FC) 
STATEMENT OF A 
REQUIRED ACTION 
r-l 
FIGURE ‘I -FLOW CHART SYMBOLS 
NOTE: 04.03 If different and/or additional faults are 
created in the system by substituting a PCB, tag 
and return the substitute PCB as a defective unit. 
05 FAULT IDENTIFICATION 
Perform the following: 
Modular block - check all station cables 
MDF - check cable from MKSU to MDF 
and ELIMINATION PROCEDURES 
05.01 The MKSU may contain a “soft” fault due 
to static electricity. If it is found defective during 
the fault finding procedures, attempt to clear a soft 
fault prior to returning the MKSU for repair. The 
correct procedure to test for this fault is to reinitial- 
ize and reprogram (as 
necessary) the system. If the 
fault returns after these procedures are performed, 
tag the defective MKSU and return it for repair. 
TABLE A 
STATION CABLE CONTINUITY CHECK USING 
VOLTMETER 
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: 
3) An improper reading indicates an open, crossF 
or shorted wire. 
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							v.. 
4) For the MDF-to-EKT cable, a more precise 
check is made using an ohmmeter per Table B. 
‘Nominal voltage-within the power supply limits 
of 23.2% 28.2 VDC while under AC power. 
TABLE B 
STATION CABLE CONTINUITY CHECK USING 
OHMMETER 
1) Disconnect the EKT at the wall. 
2) At the MDF, remove the bridging clips. 
3) Using an ohmmeter, measure the resistance 
between all combinations of the four wires 
at the modular block. All measurements should 
exceed 1 MOhm. 
4) 
5) FAULT FINDING 
SECTlOW 109-993-500 
JULY 1994 At the MDF, place shorting jumper wires 
between the T and R of pair #l (green-red) 
and the T and Fl of pair #2 (black-yellow). 
At the modular block, measure the resistance 
between all wire combinations. The proper 
readings are as follows: 
1 1 T 1 Green 1 1 1 R 1 Red 
2 I T I Black I 2 
I R I Yellow 
RESISTANCE 
1 MOhm 
1 MOhm 
1 MOhm 
1 MOhm 
55 Ohms’ 
55 Ohms’ 
‘NOTE: 
The green-red and black-yellow measure- 
ments should be within 10% of each other. 
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