Toshiba Strata Xiie, Strata Xxe Electronic Key Telephone Systems Installation And Maintenance Manual

							Strata XII, & XX, 
SYSTEM RECORD 
JULY 1988 
PROGRAM 7XX-STATION OUTGOING CALL RESTRICTION 
KEY/LED FEATURE STATION NUMBERS 
10/11j12/13~44~15~16~17~18~19(20~21(22~23~24~26~26(27~28~29/30/31~32~33~34~36/36/37~38(39~40/41 
CO21 pnctrirtml --- Ir.sLI I”Lb” 
co20 Restricted 
co19 Restricted 
CO18 Restricted 
co17 Restricted 
CO16 Restricted 
co15 Restricted 
co14 Restricted 
co13 Restricted 
co12 Restricted 
co11 Restricted 
co10 Restricted 
co9 Restricted 
CO8 Restricted 
co7 Restricted 
CO6 Restricted 
co5 Restricted 
co4 Restricted 
co3 Restricted 
co2 Restricted 
CO1 -Restricted 
/ / 
KEY/LED FEATURE STATION NUMBERS 
42143144145j4614714814915Oj51j52153154/55~56~57~58~59~60~61~62~63~64~65 
co21 Restricted 
RP 
--- ..- __.. -_-- 
co2 Restricted 
^ . . . I II III I I I I II I Ii 
X = Select (LED on) initialized Data: All LEDs off  
						

							Strata XII, & XX, 
SYSTEM RECORD 
JULY 1986 
PROGRAM 8Xx-CO RINGING ASSIGNMENTS-DAY 
co15 Ring in DAY 
co14 Ring in DAY 
co13 Ring in DAY 
co12 Ring in DAY 
co11 Ring in DAY 
co10 Ring in DAY 
co9 Ring in DAY 
CO8 Ring in DAY 
co7 Ring in DAY 
CO6 Ring in DAY 
co5 Ring in DAY 
co4 Ring in DAY 
co3 Ring in DAY 
co2 Ring in DAY 
co1 Ring in DAY, 
r co1 1 Ring in DAY1 
/ / / I I I I I I I 
I I I I I I 
X = Select (LED on) Initialized Data: Station lO-all LEDs on; all other LEDs off 
NOTE. 
Each line can ring on only eight stations. If more than eight are programmed, only the eight 
stations with the lowest station numbers will ring. 
-22-  
						

							Strata XII, & XX, 
SYSTEM RECORD’ 
JULY 1986 
PROGRAM 8#XX-CO RINGING ASSIGNMENTS-DAY 2 
Rinn 
in nav ,,,m,y III “a-l, L 
co19 Ring in DAY 2 
CO18 Ring in DAY 2 
co1 7 Ring in DAY 2 
CO16 lRinginDAY2) 1 ) 1 11 ) ) I I I ) ) ) / I ) I ) j I I ) ) 1 ) j ) j ) ) 1 
~015 1 Ring in DAY 2 j ( 1 1 1 ( 1 1 1 1 I ) 1 I I I ) 1 I I ( 1 1 I I I I / I 1 I I 
co14  co14 Ring in DAY 2  Ring in DAY 2 
co13  co13 Ring in DAY 2  Ring in DAY 2 
co12  co12 Ring in DAY 2  Ring in DAY 2 
co11  co11 Ring in DAY 2  Ring in DAY 2 
co10  co10 Ring in DAY 2  Ring in DAY 2 
co9  co9 Rim in DAY 2  Rim in DAY 2 
CO8 Ring in DAY 2 
co7 Ring in DAY 2 
CO6 Ring in DAY 2 
co5 Ring in DAY 2 
co4 Ring in DAY 2 
co3 (RinginDAY21 1 ( ( ( ( I I ( ( ( ( 1 ( ( (I 1 / / ( ( ( ( / 1 ( ( 11 I / 
co2 IRinginDAY21 1 I I / I I I I 11 1 I ] I I I I I I 11 I I I I I j ] I I I 
NOTE: X = Select (LED on) Initialized Data: All LEDs off 
Each line can ring on only eight stations. If more than eight are programmed, only the eight stations with the lo west 
station numbers will ring. This program is used only if the CO8 LED was turned on in Program 03. 
-23-  
						

							Strata XII, & XX, 
SYSTEM RECORD 
JULY 1986 
PROGRAM 9Xx-CO RINGING ASSIGNMENTS-NITE 
KEY/LED 
FEATURE STATION NUMBERS 
10~11 II 2~13~14~15~16~17/18~19~20~21/22~23~24~25)26~27j2B~29~30~31 132133/34/35(3613713Bl39(40(41 
rn3i RinninNlTF ///lllIIl/I///lIll/llIIIlIIIIll 
CO18 
co17 
CO16 
co15 
co14 
--- . . . . . . _ . - 
I 
I 
co7 Ring in NITE 
CO6 Ring in NITE 
co5 Ring in NITE 
co4 Ring in NITE 
co3 Ring in NITE 
co2 Ring in NITE 
co1 Ring in NITE 
KEY/LED FEATURE STATION NUMBERS 
42)43~44~45~46~47)48~49)50~61)52(53~54~65~56~57~68~59~60~61 162163164165 
I co1 Ring in NITE 
NOTE: X = Select (LED on) Initialized Data: Station IO-all LEDs on; all other LEDs off 
Each line can ring on only eight stations. If more than eight are programmed, only the eight stations with the lowest 
station numbers will ring. 
-24-  
						

							TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM FAULT FINDING 
SECTION 300-020-500 
DECEMBER 1986 
Strata XII, & XX= 
FAULT FINDING PROCEDURES  
						

							FAULT FINDING 
SECTION 300-020-500 
DECEMBER 1986 
STRATA XII, & XX, 
FAULT FINDING 
TABLE OF CONTENTS 
PARAGRAPH SUBJECT PAGE 
01 
02 
03 
04 
05 
06 
07 
07.01 
07.10 
CHART NO.l-FAULT CLASSIFICATION .............................. 4 
CHART N0.2-POWER FAULTS. ..................................... 
6 
CHART N0.3-STATION FAULTS ..................................... 7 
CHART N0.4-HKSU FAULTS ....................................... 9 
CHART NO.!!&CO LINE FAULTS.. ................................... IO 
CHART NO.G-INTERCOM FAULTS. .................................. 
I3 
CHART N0.7-DSS FAULTS ......................................... 
I5 
CHART N0.8-AUTOMATIC DIALING FAULTS ........................ 
I7 
CHART NO.S-MOH, BGM, PAGE 81 RELAY SERVICE FAULTS ........ 
I8 
CHART NO.1 0-SMDR FAULTS. ..................................... 
20 
CHART NO.Il-OPX FAULTS ........................................ 
21 
CHART N0.12-OPL FAULTS ........................................ 
22 
CHART NO.l3-DOOR PHONE FAULTS .............................. 24 
CHART N0.14-TIE LINE (HTIB) FAULTS ............................. 
27 
FIGURE TITLE PAGE 
TABLE OF CONTENTS ................................................... i 
GENERAL .............................................................. I 
FAULT CLASSIFICATION ................................................. I 
TABLE A-FLOWCHARTS. ............................................... 
I 
FAULT CLEARING PROCEDURES ......................................... I 
DEFECTIVE APPARATUS RETURNS ....................................... 2 
FLAULT IDENTIFICATION AND ELIMINATION PROCEDURES ................ 
2 
POWER SUPPLY ........................................................ 2 
STATION CABLE CONTINUITY CHECK .................................... 2 
Voltmeter Test..................................~.............~ ......... 2 
TABLE B-STATION CABLE CONTINUITY CHECK USING VOLTMETER ...... 3 
Ohmmeter Test ......................................................... 3 
TABLE C-STATION CABLE CONTINUITY CHECK USING OHMMETER ...... 3 
FLOWCHARTS 
ILLUSTRATION LIST 
1 FLOWCHART SYMBOLS ................................................. 
I 
2 HPSU VOLTAGE CHECKS ............................................... 2  
						

							01 GENERAL 
01 .Ol This section describes the maintenance 
procedures used for the diagnosis of faults in this 
electronic key telephone system. Faults are clas- 
sified and then cleared by replacing the apparatus 
and performing operational tests in the se- 
quences prescribed by the fault clearing flow- 
charts in Paragraph 05. 
02 FAULT CLASSlFlCATlON 
02.01 A Fault Classification Flowchart is pro- 
vided to ensure that fault clearing is pursued in a 
logical sequence (Chart No. 1). 
02.02 An assumption is made in the flowcharts 
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 flowcharts in Ta- 
ble A are organized into the following categories: 
Flowchart 
1 Fault Classification 
2 Power Faults 
3 Station Faults 
4 HKSU Faults 
5 CO Line Faults 
6 Intercom Faults 
7 DSS Faults 
8 Automatic Dialing Faults 
9 MOH, BGM, Page and Relay Ser- 
vice Faults 
10 SMDR Faults 
11 OPX Faults 
12 OPL Faults 
13 Door Phone Faults 
14 TIE Line (HTIB) Faults 
03 FAULT CLEARING PROCEDURES 
Table A-Flowcharts 
Title 
03.01 Before attempting to clear any fault, er 
I- 
sure that it is in the system and not caused by as- 
sociated external equipment, such as wiring, 
MOH source, etc. 
IMPORTANT! 
Many system features are assigned, enabled 
or disabled using software entries as de- 
scribedin Programming Procedures. Further, 
with the exception of Programs 5XX - 9Xx, 
programming changes are not effective until 
the new data has been secured in working 
FAULT FINDING 
SECTION 300-020-500 
DECEMBER 1986 
memory (see Paragraph 02.06 of Pro- 
gramming Procedures). lt is important to 
verify that the system programming is cor- 
rect and functional before troubleshooting 
the hardware. 
03.02 In new systems, or when the HCAU/ 
CAAU PCB has been changed, the initialization 
procedure must be performed before testing. The 
system data stored on the original HCAU/CAAU 
will be protected from loss by the backup battery 
on that PCB. Therefore, the initialization se- 
quence should no? be performed if the original 
PCB is reinstalled. 
03.03 Faults in the system are cleared by re- 
placing PCBs, EKTs or the power supply, as in- 
structed in the flowcharts. 
03.04 Five symbols are used in the flowcharts, 
which are identified in Figure 1. 
Start and end of a 
flow chart sequence 
Important notes af- 
fecting the fault clear- 
ing procedure 
Question to be an- 
swered YES or NO 
Progression TO or 
FROM another fldw- 
chart location. Let- 
ters will denote 
exact entrance or exit 
0 
point 
Statement of a re- 
quired action 
FIGURE 1 -FLOWCHART SYMBOLS 
03.05 The flowcharts are sequentially ar- 
ranged to permit rapid fault localization within the 
system. All fault clearing must begin with the 
-l-  
						

							FAULT FINDING 
SECTION 300-020-500 
DECEMBER 1986 
Fault Classification Flowchart, which is arranged 
in the correct fault locating sequence. 
03.06 The following precautions must be ob- 
served when handling PCBs. 
DO NOT: 
l Drop a PCB. 
0 Stack one PCB on top of another. 
0 Handle a PCB without discharging any static 
electrlclty from your person by touching the 
grounded HKSU. 
0 Touch PCB contacts with your fingers. 
IMPORTANT! 
If the fault is not cleared by substituting a 
PCB, the original PCB must be reinstalled in 
the HKSU 
before trying another PCB. 
04 
DEFECTIVE APPARATUS RETURNS 
04.01 When a defective system apparatus is 
shipped for repair, the apparatus must be packed 
in a suitable container (the original box is highly 
recommended), as follows: 
a) Paper container for the HCAU/CAAU PCB. 
b) Anti-static containers for all other PCBs. 
c) Plastic bags for EKTs, HKSU, etc. 
04.02. NEVER WRITE ON THE APPARATUS IT- 
SELF! Describe the nature of the defect on an in- 
formation tag. Attach the tag to the front of the 
unit with string (not wire) so the tag can remain 
attached during the testing and repair process. 
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 
and ELIMINATION PROCEDURES 
05.01 The HCAU/CAAU PCB may contain a 
“soft” fault due to static electricity. If it is found 
defective during the fault finding procedures, at- 
tempt to clear a soft fault prior to returning the 
HCAU/CAAU PCB for repair. The correct proce- 
dure for this is to reinstall the HCAU/CAAU, per- form the initialization procedure, and then repro- 
gram the system as necessary to test for the fault. 
If the fault returns after these procedures are 
performed, tag the defective HCAUICAAU PCB 
and return it for repair. 
06 POWER SUPPLY 
06.01 If a power supply fault is suspected, the 
power supply (HPSU 8120/9120) should be re- 
moved from the HKSU. Figure 2 shows the loca- 
tions of the voltage checks on the rear of the 
HPSU.. Voltages should fall within the following 
ranges: 
Nominal Range 
+24 +23.0 - 29.0 
+I2 
+10.8 - 13.2 
+5 +4.75 - 5.25 
FIGURE 2-HPSU VOLTAGE CHECKS 
06.02 If voltage checks indicate a power supply 
fault, replace the HPSU with a correctly operating 
unit. Refer to the Installation section of this man- 
ual for HPSU installation procedures. 
07 
STATION CABLE CONTINUITY CHECK 
07.01 Voltmeter Test 
07.02 
The continuity of the cable run between 
the HKSU and the EKT is checked with a voltmeter 
as follows: :. 
-2-  
						

							FAULTFINDING 
SECTION 300-020-500 
DECEMBER 1986 
07.10 Ohmmeter Test 
Oaol 1 The continuity of the cable run between 
the HKSU and the EKT is checked with an ohm- 
meter as follows:  NOTE: 
Perform the following at the locations indi- 
cated: 
1. Modular block: Check all station cables. 
2. MDF: Check cable from HKSU to MDF. 
1) Disconnect the EKT. 
2) Using a DC voltmeter, measure between the 
wires of the two pairs to verify the readings 
shown in Table B. 
3) An improper reading indicates an open, 
crossed or shorted wire. 
4) For the MDF-to-EKT cable, a more precise 
check is made using an ohmmeter. 
TABLE B 
STATION CABLE CONTINUITY CHECK 
USING VOLTMETER 
*Nominal voltage- within the power supply 
limits of +23.2 - 28.2 VDC while under AC 
power. 
1) 
2) 
3) 
4) 
5) Disconnect the EKT. 
At the MDF, remove the bridging clips. 
Using an ohmmeter, measure the resistance 
between all combinations of the four wires at 
the modular block. All measurements should 
exceed 1 M ohm. 
At the MDF, place shorting jumper wires be- 
tween the T and R of pair #l (green-red) and 
the T and R of pair #2 (black-yellow). 
At the modular block, measure the resistance 
between all wire combinations. The proper 
readings are shown in Table C. 
TABLE C 
STATION CABLE CONTINUITY CHECK 
USING OHMMETER 
1 R Red 2 R Yellow 1M ohm 
1 T Green 1 R Red 55 ohms* 
2 T Black 2 R Yellow 55 ohms* 
“NOTE. 
The green-red and black-yellow measure- 
ments should be within 10% of each other. 
-3-  
						

							FAULT FINDING 
SECTION 300-020-500 
DECEMBER 1986 CHART NO. 1 
FAULT CLASSIFICATION 
Please read the 
maintenance 
lnformatlon 
before proceeding. 
To Start here to 
clear faults I” 
STRATA XII, & XX,. 
Check fuses, 
ctrcuht breakers 
lndlcators 
To 
NOTf: Verify 
STA U installed.