Toshiba Strata S Electronic Key Telephone System Installation And Maintenance Manual

							E 
-05.02 A functio.nal block diagram of the 
Strata S MKSU is shown in Figure 9; it con- 
sists of the main PCB (MMAU), which includes a 
station interface and central control equipment, 
and a CO interface (ACOU). The optional Paging 
Amplifier module (AEPU), internal music-on-hold 
.source (AMOU), and Power Failure module(APFU) 
are also shown. 
05.03 Connections between the station voice 
GENERAL DESCRIPTION 
‘. 
SECTION 100-003-l 00 
JULY 1994 
lines and the CO lines are via theswitching matrix 
provided on the MMAU. A similar matrix is pro- 
vided on the MMAU for intercom connection, pag- 
ing connections and for the distribution of the 
various system tones (Dial, Busy, etc.). . 
05.04 The system is under the control of a 
single-chip microprocessor, which is located, along 
with the system programs and data memories, on 
the MMAU PCB. 
MM-AU 
I---- -ncou - --z-I 
- 
I 
To CO/PBX 
1 (3 lines) 
- 
DATA 
. . - 
115VAC 
b 
FIGURE 9-FUNCTIONAL BLOCK DIAGRAM 
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							GENERAL DESCRIPTION 
SECTION 100-003-l 00 
JULY 1984 
e.. 
06 SYSTEM CONFIGURATION 
06.00 Key Service Unit 
06.01 Completewith all options, the MKSU util- 
izes five circuit boards. The names and functions 
of the PCBs are: 
ACOU (MF or DP): 
An interface between the MKSU and the pub- 
lic telephone network or PBX lines. Ring detec- 
tion, hold and dial outpulsing for three circuits 
are performed by this PCB. Depending upon 
local CO requirements, an MF or DP type of 
ACOU will be provided (MF for DTMF outpuls- 
ing; DP for rotary dial outpulsing). 
MMAU: 
The main PCB of the MSKU, consists of the 
following four functions: 
a) Station Interface-An interface between 
the MKSU and EKTs, which includes the 
solid-state space division matrix used for 
voice connections between the EKTs .and 
the CO/PBX lines. Two-pair wiring is 
required for each EKT; one pair carrying 
voice and the other pair carrying data to 
and from the EKT. 
b) Control-All system control functions are 
performed by the single-chip micro-pro- 
cessor. The system program stored in 
ROM, the RAM for system operations, and 
the RAM for system data storage are also 
located on this circuit board. 
c) Tone-Performs a number of miscel- 
laneous system functions: 
l Generates system tones. 
0 Provides the switching matrix for the 
delivery of tones for both paging and 
intercom connections. 
l Houses the interface for the external 
paw. 
l Houses the interface for music-on-hold. 
d) Power Regulating-Performs the following: 
l Provides connection points for the 24 
VDC input power. 
l Houses the voltage regulators that pro- 
vide 12 and 5 VDC for system operation. 
l Houses a circuit breaker that protects 
the 24 VDC, EKT, and MKSU circuits. 
AEPU: 
An optional 3-watt amplifier for external paging. AMOU: 
An optional music-on-hold source. 
APFU: 
An optional power failure transfer module 
used to transfer the CO lines to single line 
telephones in the event of a power failure. 
06.02 The MKSU arrangement illustrated in 
Figure 10 shows the locations of the various PCBs. 
The MMAU, which hosts the ACOU, is secured to 
the MSKU with six screws. The ACOU, attached to 
the MMAU with four screws, is connected to it via 
four 1 O-pin connectors. 
FIGURE lo-MKSU (Interior) 
06.03 The optional AEPU is attached to the 
MMAU with two screws, and connected with the 
MMAU via two lo-pin connectors. 
06.04 The optional music-on-hold source 
(AMOU) is secured to the MKSU right side panel, 
and connected with the MMAU via a 3-pin 
connector. 
06.05 The optional power failure transfer unit 
(APFU) is secured to the MKSU right side panel 
and connected with the ACOU via four 2-pin 
connectors. 
06.10 Power Supply Assembly 
06.11 The system requires 24 VDC. Two power 
supplies are available; MPSA-200 and MPSA- 
512. Each of these requires 117 VAC, 60 Hz. The 
permissible AC input voltage range is 90 - 130 
VAC.  
						

							-..06.12 An optional battery back-up unit (PBBU) 
is available for the MPSA-200. With the optional 
battery back-up assembly installed, all functions of 
the Strata S system. will continue to operate 
for several hours (the actual time period is in direct 
ratio to the type and size of batteries selected) after 
a loss of normal electrical power. No calls will be 
disconnected during switch-over to battery power. 
FIGURE 1 l-l O-key “S” EKT 
06.20 Station Equipment 
06.21 
The principal components of the lo-key 
“S” electronic key telephone (Figure 11) are: 
handset, dial pad, speaker, sliding ringing/speaker 
volume control, 3-position volume control, one 
intercom key, three CO/PBX line keys and nine 
feature keys. LED indicators are provided for all 
_- -. 
keys except FOLD] and [m%] keys. With the 
exception of the three permanently dedicated 
keys, the feature keys can be assigned to one of 
two modes by programming (see Figure 12). 
06.22 Standard features of the 1 O-key “S” EKT 
include, among other standard features, paging, 
one-touch automatic dialing keys, 
and auto-redial. 
In initialized mode, three of the keys are utilized for 
CO/PBX lines, one for intercom 
access, four keys 
for 
one-touch automatic dialing and one each for 
Do Not Disturb and Message Waiting/Flash. 
GENERAL DESCRIPTION 
SECTlON 100-003-l 00 
JULY 1994 
1 O-key 1 O-key 20-key 20-key 20-key 
#l 
#2 #I #2 #3 
FIGURE 12-KEY LAYOUT 
06.23 The optional lo-key EKT (Figure 13) pro- 
vides the same programmable feature keys as the 
standard EKT. plus a microphone control keym, 
handsfree answerback and full speakerphone 
capability. 
I I 
FIGURE 13-l O-key EKT 
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							GENEML DESCRlPTlDN 
SECTION 100-003-l 00 
aJ~lY 1994 _ _ 
06.24 The optional lo-key BLF EKT (Figure 14) 
provides the same features as those listed in Para- 
graph 06.23, plus an LED indication on which 
stations are in use. 
I - : . . 
06.26 All EKTs feature modular handset cords 
and are connected to the system via 4-conductor 
modular line cords. . . 
06.27 All EKTs are easily converted for wall 
mounting with an optional kit. 
06.30 Installation 
06.31 External devices are connected to the 
MKSU via connectors and terminals on the side 
panels. 
FIGURE 14--BLF EKT 
06.25 The optional 20-key EKT (Figure 15) pro- 
vides the same features as those listed in Para- 
graph 06.23, and has ten additional feature keys. 
That is, three CO/PBX keys, one intercom key, and 
16 feature keys that may be used as automatic 
dialing keys, direct station selection (DSS) keys, 
etc. Three different combinations of feature keys 
may be selected via programming, as shown in 
Fiaure 12. 
07 FEATURES and OPERATION 
FIGURE 15-20-key EKT 
a) 
b) 
cl CO/PBX lines are connected to the MKSU 
right side panel via a 3-pair modular cord. 
The station connection points are extended 
from the MKSU to the MDF using one cable 
equipped with a standard 50-pin amphenol- 
type connector. The individual EKTs are con- 
nected to the MDF with 2-pair station cable. 
Screw-terminal barrier strips are mounted on 
the side of the MKSU to provide attachment 
points for the following connections: 
24 VDC power input (left side) 
Music-on-hold source input (right side) -. 
External page output (right side) 
?4 
06.32 
The power supply is mounted to the well’ 
separately from the MKSU and connected to the 
24 VDC input on the MKSU left side. 
06.40 Maintenance 
06.41 Faults in Strata S are repaired by 
replacing any faulty component (EKT, printed cir- 
cuit board, sub-assembly, etc.) and returning it to 
the manufacturer for repair. 
07.00 
General 
07.01 This section contains brief descriptions of 
the 
Strata Sfeatures listed earlier in Tables B 
and C and some associated operating instructions. 
Detailed operating instructions can be found in 
either the Strata S USER GUIDE or Operat- 
ing Procedures. Section 100-003-4C0, 
Strata 
S Jnstallation and Maintenance Manual. 
07.10 Standard Features 
07.11 System 
All Call Voice Page: 
Dialing a 1 -digit access code permits a station 
user to page via all EKT speakers and (option- 
ally)the External Page speaker simultaneously. 
-1 o-  
						

							--.Alternate Point Answer: 
CO/PBX or intercom calls can be answered 
from any station. 
Automatic Dialing-System: 
This standard feature allows 40 numbers to be 
stored in the system memory. After selecting 
an outgoing line, any station user can cause 
one of the stored numbers to be outpulsed by 
dialing the proper address code. 
Automatic Hold Recall: 
A CO line placed on hold by any station will 
recall that station after a programmable period 
of time. 
Automatic Privacy: 
Privacy is automatic on all connections. 
Automatic Release from Hold: 
The system automatically releases held CO 
lines if a disconnect signal is received from the 
central off ice. 
Busy Override: 
After dialing a busy station and receiving a 
busy tone, the caller can dial a 
q and cause a 
tone burst to be sounded via the called EKT 
speaker. 
Conference-Multi-station (non-amplified): 
Conferencing is permitted to a maximum of 
four stations and one CO or the intercom line. 
Conference-Multi-trunk (non-amplified): 
Conferencing of two CO lines and three sta- 
tions is permitted. 
Distinctive Ringing: 
CO line and intercom calls are distinguished 
by different ringing tones. 
DTMF and Dial Pulse Compatible: 
DTMF or dial pulse signalling can be sent to 
the CO/PBX line by installing the proper 
ACOU PCB type. 
External Page Interface: 
A 6OD-ohm connection point is provided for a 
customer-provided external speaker. An am- 
plifier is also required, which can be mounted 
externally, or the AEPU (see Paragraph 07.20, 
External Page Amplifier) can be mounted in 
the MKSU. If the AEPU is used, the output 
impedance is 8 ohms. This page circuit is 
accessed as part of the All Call Voice Page 
- feature. GENERAL DESCRIPTION 
SECTION 100-003-100 
JULY 1984 
Flash Key (PSX Transfer or CO Dial Tone Recall): 
All EKTs are equipped with a Message Wait- 
ing/Flash m) key which, when operated 
while connected to a CO/PBX line, causes a 
timed “flash” to be transmitted to the CO or 
PBX. The timing of the flash can be pro- 
grammed to signal a PBX for feature operation 
or can be long enough to cause a disconnect 
and dial tone recall on a CO line. Also see 
Message Waiting. 
Flexible Line Ringing Assignment: 
A programmable ring or no ring option is pro- 
vided for each line selectively by each station. 
Each line may be programmed to ring all eight 
stations. 
Live System Programming: 
Live system programming is accomplished 
without service interruption to other station 
users by placing the system in the special pro- 
gramming mode and inputting data via station 
17. Station 17 is the only station that is 
“down” during programming. 
Message Waiting: 
The designated Message Cent‘er can indicate a 
message is waiting for any station with the 
Message Waiting LED of that station. Also see 
Flash Key. 
Music-on-hold Interface: 
An interface is included for a customer-pro- 
vided external music source (see Paragraph 
07.20, Music-on-hold Source). CO lines placed 
on hold will be connected to this source. 
Night Transfer: 
CO lines can be programmed to ring different 
stations while in the “Day” or in the “Night” 
mode. If this feature is to be used, the w 
(Do Not Disturb) key on station 10 is reas- 
signed to the NT function and is then used to 
select the “Day” or “Night” mode. 
Non-blocking Dialing: 
Dialing is permitted on the intercom and all 
three CO lines simultaneously. 
Outgoing Call Restriction: 
Any station can be selectively restricted from 
originating calls on any or all CO lines. How- 
ever, the station will still receive calls on the 
restricted line(s). 
PBX Compatible: +a- 
Strutu Sfeatures, such as toll restriction 
and automatic dialing, are compatible with 
PBX operation. 
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							GENERAL OESCRlWlON 
SECTION 100-003-l 00 
JULY 1984 
e.. 
-  Private CO Lines: 
Restrictions may be programmed into the sys- 
tem so that selected CO line(s) may appear 
only on selected station(s). 
Repeat Last Number Dialed: 
The last number dialed by each station is 
always stored by the system and will be dialed 
automatically whenever the station user selects 
an outgoing line and depresses the 
q key. 
Toll Restriction: 
Selectively programmed on a per-station, per- 
line basis. 
Strata S performs toll restric- 
tion by rejecting the numbersa andm as the 
first or second digit and limiting the total 
number of digits dialed to seven or eight. 
Voice or Tone Signalling: 
A programmable system feature that option- 
ally selects either tone ringing or voice page as 
the primary method of intercom call signalling. 
The calling station, however, may choose the 
alternate method by dialing a following the 
station number. 
Wall Mountable MKSU: 
The MKSU is designed for wall mounting only. 
07.12 Station 
Automatic Dialing-Station: 
Each EKT can store a private list of ten fre- 
quently used telephone numbers. 
Automatic One-touch Dialing (Programmable): 
This feature can be used with an EKT that 
includes m keys in its programmed as- 
signments. 
a) A station number can be stored at each 
m key. 
b) A number stored in the memory can be 
sent over a CO line by depressing the 
appropriate a key after accessing the 
CO line. 
NOTE: 
Each a key is counted as one of the 10 
possible stored numbers available to each 
station. 
Do Not Disturb: 
This feature is activated and deactiited by 
alternate depressions of the m key. A sta- 
tion calling a station that is in the DND mode 
will receive a fast busy tone. Do Not Disturb Override (Programmable Option): 
After reaching a DND station, that station may 
be advised that a call is waiting by dialing 
q . A 
tone signal will be heard at the DND station. 
Executive Override of Privacy: 
A station that is programmed for this feature 
will override the automatic privacy feature and 
enter any existing conversation within the sys- 
tem. A warning tone, however, is inserted 
before the overriding station is actually con- 
nected. A maximum of two stations can be 
programmed for executive override. 
l-called Illumination: 
A distinctive flash appears on the intercom 
LED at the EKT that is actually being called. 
l-hold Illumination: 
The EKT user is shown a distinctive LED flash 
to indicate a line actually placed on hold at that 
EKT. All other stations see the usual on-hold 
flash. 
l-use Illumination: 
A distinctive flash rate shows the line pres- 
ently in use at a given EKT. Other stations see 
a steadily illuminated LED for that line. 
Modular Handset and Line Cords: 
All EKTs are equipped with modular handset 
and line cords. 
On-hook Dialing: 
Strata S lets you dial your calls with the 
handset still on-hook. Call progress can be 
heard via the telephone speaker; no need to 
pick up the handset until your party answers. 
Push-button Dialing: 
All 
Streta SEKTs are equipped with push- 
button dial pads. 
Ringing Line Preference: 
A line ringing at a station can be answered by 
merely lifting the handset or depressing the 
m key (optional speakerphone EKTs only). 
The ringing line will be automatically selected. 
07.20 Optional Features 
1 D-key EKT with Speakerphone: 
An optional EKT provides handsfree answer- 
back and full speakerphone capability. 
Busy Lamp Field (BLF) El& 
An optional lD-key EKT provides handsfree 
answerback, full speakerphone capability, and 
an LED panel showing the busy/idle 
status of 
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							f a- GENERAL DESCRIPTION 
SECTION 100-003-l 00 
JULY 1994 
each station. A station in the DND mode will 
show as busy. 
ZO-key Executive EKT: 
An optional executive unit provides handsfree 
answerback, full speakerphone capability and, 
via 10 additional feature keys, automatic dial- 
ing access, four one-touch automatic dialing 
telephone numbers, redial last number dialed, 
a pause key, or may be used as a DSS station. 
External Page Amplifier: 
This optional external page 3-watt amplifier 
(AEPU PCB) allows a customer-provided ex- 
ternal speaker to be accessed in an all-call 
operation by dialing non the intercom (see 
Paragraph 07.11, External Page Interface). 
Handsfree Answerback: 
All optional EKTs are equipped for handsfree 
answerback on voice-announced intercom 
calls. 
Microphone Control Key: 
All optional EKTs have a 1-1 key that ’ may be used to cut off the microphone when 
the speakerphone is in use, thereby permitting 
a private local conversation. _ 
Music-on-hold Source: 
This optional electronic music source (AMOU 
PCB), when installed. illiminates the need for a 
custome.r-provided external music source and 
provides electronic-generated music to CO 
lines placed on hold. 
Speakerphone: 
All optional EKTs are fully functional speaker- 
phones. 
System Battery Back-up: 
An optional PCB can be plugged into the 
MPSA-200 power supply to provide automatic 
switching to standby battery power. During 
normal power conditions the batteries are kept 
fully charged by the power supply. 
Wall Mounting Kits for EKTs: 
All Strata S EKTs are easily converted for 
wall mounting with optional kits. 
,. - 
-13-  
						

							- 
TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM INSTALLATION 
SECTION 100-003-200 
JULY 1984 
, 
StrataS --. 
INSTALLATION INSTRUCTIONS  
						

							INSTALLATION 
SECTION 100-003-200 
JULY 1984  TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM 
_.. 
Strata S 
INSTALLATION INSTRUCTIONS 
TABLE of CONTENTS 
PARAGRAPH SUBJECT 
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TABLE of CONTENTS ............................ 
ILLUSTRATION LIST 
GENERAL . .... . ..I :: : : : ::: : :: ::: : ::: ::: : :: 
PACKING 
................................. 
Inspection 
MKSU LOCATlON’REdlJiREMENTS’ : : : : : : : : : : : : : : : : : : : : : : 
Power Requirements .......................... 
Ventilation Requirements ........................ 
Environment Factors .......................... 
Cabling Considerations ......................... 
MKSU MOUNTING 
Wall Mounting theMKSU ’ : : : : : : : : : : : : : 1 : : : : : : : : : : 
PRINTED CIRCUIT BOARD DESCRIPTIONS 
OPTION SELECTION .......... : : : : : : : : : : : : : : : : : : 
External Page Option Selection ...................... 
Music-on-hold Option Selection 
PCBINSTALLATION ....... . . . . . . . . . . . . . . . . . . . . . 
General Information ........................... 
AMOU (MOH Source) Installation ................ ) ... 
APFU (Power Failure Transfer Unit) Installation ............ : : . 
AEPU (External Page Unit) Installation ................... 
MKSU Cover Installation ......................... 
POWER CONNECTION ........................... 
Cable Connection ............................ 
Test Procedure 
CABLECONNECTIONS - : : : : : : : : : : : : : : : : : : : : : : : : : : : 
MDF Configuration ............................ 
Station Cable Connection ........................ 
Intercom Code Assignment ........................ 
CO Line Connection ........................... 
EKT INFORMATION ............................. 
General 
................................ 
lo-key S EKT Wall Mounting ....................... 
Optional EKT Wall Mounting ....................... 
Installing the Handset Hanger Kit ..................... 
EKT Connections 
SYSTEM POWER-UP INITIAL& . : : : : : : : : : : : : : : : : : : : : : : : 
Clearing Automatic Dialing ........................ 
SYSTEM TEST PROCEDURES 
lo-keys EKTFunctional Check’ : : : : : : : : : : : : : : : : : : : : : : 
Optional EKT Functional Check ...................... 
Feature Check 
MISCELLANEOUS EQljlPMENT%NhiECTiONS ’ : : : : : : : : : : : :- : : : : 
Wiring Connections ........................... 
Music-on-hold Source .......................... 
External Paging Connections ....................... 
Direct External Speaker Connection .................... 
External Amplifier Connection se- 
PowerFailureTransfer . ..:::::::::::::::::::::: i 
ii 
1 
1 
1 
1 
1 
1 
1 ’ 
1 
1 
1 
2 
2 
2 
3 
3 
3 
3 
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5 
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5 
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6 
6 
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7 
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10 
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12 
12 
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15 -. 
17 
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							TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM INSTALLATION 
SECTION 100-003-200 
JULY 1984 
w.. 
NUMBER 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
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14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
:: 
33 
34 
Strata S 
INSTALLATION INSTRUCTIONS 
ILLUSTRATION LIST 
TITLE PAGE 
SideCovers ................................................................. 2 
WallMountedMKSU ........................................................ 2 
MKSUwith PCBs ............................................................ 2 
External Pagelerminals ...................................................... 3 
MMAUSwitches ............................................................ 3 
MKSUCoverScrews ......................................................... 3 
MountedAMOUPCB ........................................................ 4 
AMOU/MMAU Cable Connection ............................................. 4 
MountedAPFUPCB ......................................................... 4 
APFU Connection ............................................................ 4 
Mounted AEPU PCB ......................................................... 5 
System Diagram ............................................................. 6 
MKSU Cable Clamping ....................................................... 7 
MDF/EKT Wiring ............................................................ 8 
RJ25C Wiring ............................................................... 7 
1 D-key “S” EKT ............................................................. 9 
1 O-key Speakerphone EKT .................................................... 9 
BLFEKT .................................................................... 9 
20-key EKT ......................................................... . ....... 9 
KeyLayout .................................................................. 10 
Wall Mount Bracket .......................................................... 10 
BracketSlots ................................................................ 10 
“S” EKT Wire Routing ........................................................ 11 
Removing Optional EKT Base ................................................. 11 
EKT Wire Access ............................................................ 11 
EKT Wire Routing ............................................................ 11 
Handset Hanger Kit .......................................................... 12 
SET Switch . 
_ ............................................................... 12 
MKSU Connection ........................................................... 15 
MMAU SW3 Switch ......................................................... 15 
MMAU SW2 Switch ......................................................... 16 
AEPU Volume Switch ........................................................ 
16 
Power Failure Transfer Diagram ............................................... 16 
PFf Telephone Connections ................................................... 17 
-ii-