Toshiba Strata Vie General Description Manual

							TOSHIBA SYSTEM PRACTICES 
ELECTRONIC  KEY TELEPHONE  SYSTEM  STRATA 
Vie 
iOVEM9E’R  1986 
-.’ 
, TC$SS-IO-09  5Mlssile  4.1 
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							STRATA Vie 
GENERAL DESCRIPTIGN 
NOV_EMBER 1986 
PARAGRAPH 
STRATA VI, 
GENERAL DESCRIPTION 
TABLE of CONTENTS 
SUBJECT 
PAGE 
01 
02 
03 
04 
05 
06 
07 
TABLE of CONTENTS 
i 
GENERAL ..... : : : : : : : : : : : : : : : : : : : : : : : : 1 
Summary Description ....................... 1 
PHYSICAL DESCRIPTIONS ...................... 1 
Key Service Unit ............... , ......... 1 
Peripheral Equipment ....... , ............... 2 
Electronic Key Telephones 2 
ELECTRICALCHARACTERISTICS ’ : : : : : : : : : : : : : : : : : : : 3 
General 3 
FEATURESanbSEkVldES ’ 1 : : : : : : : : : : : : : : : : : 1 : : : 4 
TABLE A-Summary of Electrical Characteristics ............ 4 
TABLE B-Standard Features .................... 5 
TABLE C-Optional Features ............. , ....... 5 
SYSTEM OPERATION ........................ 6 
General 6 
SYSTEM CONFIGURhTldN’ ’ : : : : : : : : : : : : : : : : : -: ; : :. 7 
Key Service Unit .......................... 7 
Option Modules .......................... 8 
Station Equipment .................... , ... 9 
Installation ............................ 10 
Maintenance ........................... 10 
FEATURES and OPERATION ..................... 10 
General ............................. 10 
Standard Features ........................ 10 
System ............................. 10 
Station .............................. 12 
Optional Features ......................... 13 
ILLUSTRATION LIST 
FIGURE NO. TITLE 
PAGE 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 HKSU (Dimensions) 
......................... 1 
HKSU CABINET 
........................... 1 
HKSU (Internal View) 
........................ 1 
EXTERNAL MODULES 
........................ 2 
1 O-key ELECTRONIC 
KEY TELEPHONE ................. 2 
SINGLE-LINE EKT 
.......................... 
3 
lo-key BLF EKT 
........................... 3 
20-key EKT 
............................. 
3 
20-key LCD EKT 3 
SYSTEM DIAGRAM * : : : : : : : : : : : : : : : : : : : : : : : : : 
6 
FUNCTIONAL BLOCK DIAGRAM ................... 7 
HKSU (with PCBs) 
.......................... 8 
DOORPHONE 
........................... 9  
						

							STRATA We 
GENERAL DESCRIPTION 
NOVEMBER 
1986 
01 GENERAL 
Summary Description 
STRATA Vle is an electronic key telephone 
system with many standard features; utilizing 
stored program control, custom LSI circuitry, 
solid-state, space-division switching and re- 
duced station cabling. Served by a key ser- 
vice unit (HKSU) that is housed in a single 
cabinet, the system is factory-equipped with 
three central office/PBX lines, two intercom 
lines, and eight station lines. The system ex- 
pands to a maximum capacity of six central 
office/PBX lines, two intercom lines, and 16 
station lines. 
The system utilizes specially designed elec- 
tronic key telephones (EKTs). Each EKT is 
connected to the system via industry-stan- 
dard 2-pair cabling, and is equipped with a 
push-button dial pad. Solid-state electronics 
within the HKSU translate signals from the 
station dial pad into either DTMF or rotary- 
dial signals, as required by the central office. 
It is electrically compatible with the public 
telephone network and is also designed to 
function in a “behind PBX” environment. 
Maintenance procedures are based on 
quickly locating and replacing defective plug- 
in units, 
keeping service disruption to a 
minimum. 
02 PHYSICAL DESCRIPTIONS 
FIGtIRE 1 -HKSU (Dimensions) 
Key Service Unit 
Designed for wall mounting, the .HKSU is 
housed in a single metal cabinet (Figure 1) 
with the following dimensions: 
Height: 21.25” (540 mm) 
Width: 12.9” (330 mm) 
Depth: 2.75” (70 mm) 
Weight: 15.63 Ibs. (7.09 kg) 
The cabinet (Figure 2) consists of a base, 
cover and side covers. 
FIGURE 2-HKSU CA~INEI 
The HKSU (see Figure 3 for factory-equip- 
ped HKSU) will accommodate up to seven 
printed circuit boards (PCBs). The various di- 
mensions and designations of these PCBs 
are: 
FIGURE 3-HKSU (Internal View) 
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							STRATA Vie 
GENERAL DESCRIPTION 
NOVEMBER 
1986 
VMAU: 9.75 x 15.37” 
(248 x 390 mm) 
VCOU: 5.75 x 10.60” 
(146 x 269 mm) 
VCCU: 6.00 x 6.50” 
(152 x 165 mm) 
SSTU: 4.13 x 4.60” 
Handset 
 
Headset 
COflneCtOr 
(105 x 117 mm)  
SEFU: 4.25 x 3.00” 
(108 x 76 mm) 
SMOU: 2.25 x 1.13” 
Rlnglng Volume 
~ Control 
3 Speaker 
Volume 
COlWOl 
(57 x 29 mm) 
The VMAU PC6 is se- 
cured directly to the base 
of the cabinet; the re- 
maining PCBs attach to 
the VMAU. 
Peripheral Equipment 
.oi 
00 
00 
00 
00 
00 
00 
00 
DO-- 
INT 
- 
 q 
Four optional expansion 
modules are available to 
accommodate 
the Door 
Phone (HDCB), Off-Prem- 
ises Line (HOLB), Station 
Message Detail Recording 
(HSMB) and Off-Premises 
Extension (HOXB) features. The two pairs of 
modules are identical in external appearance 
(Figure 4). A door phone (MDFB) is also 
available. An external ring generator/power 
- Intercom 
Kev 
Microphone 
( Conference 
Key 
Speaker Key 
On/Off Key  Hold Key ‘Feature & Function r^ 
 
MIcrophone 
FIGURE 5-lo-key ELECTRONIC KEY TELEPHONE 
supply (MRGU) that can be used with the 
HOXB is also provided. . 
Electronic Key Telephones 
Seven different electronic key telephones 
(EKTs) may be used in STRATA Vle: 
1) lo-key EKT (Figure 5): Available in two 
models, as a 
speakerphone or 
with 
handsfree answerback (HFU) on intercom 
calls only. 
FIGURE 4-EXTERNAL MODULES 
2) Single-line EKT (Figure 6): Equipped with 
three permanently dedicated keys (m 
=QzzI and an intercom/CO line 
key, which is not labeled. 
3) lo-key BLF EKT (Figure 7): Available as a 
speakerphone-only model, with 16 LEDs 
used as a Busy Lamp Field (BLF). 
4) 20-key EKT (Figure 8): Also available in 
two models, speakerphone or HFU. 
5) 20-key LCD EKT (Figure 9): Available as a 
speakerphone-only EKT with a 32-char- 
acter alphanumeric Liquid Crystal Display 
(12-digit display in current release). 
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							STRATA We 
GENERAL DESCRIPTION 
NOVEMBER 
1986 
FIGURE 6-SINGLE-LINE EKT 
FIGURE 7-lo-key BLF EKT 
FIGURE 8-20-key EKT 
All EKTs have the same dimensions: 
Height: .3.6” (92 mm) 
Width: 7.0” (178 mm) 
Depth: 9.0” (229 mm) 
Housed in an impact-resistant, off-white 
plastic case, each EKT comes with a brown 
faceplate (with wine, black or blue faceplates 
available as extra cost options). 
System software assignments permit a 
wide variation to the feature keys on all 
EKTs. 
Each EKT features a modular handset cord, 
a modulur headset connector (except the 
FIGURE 9-20-key LCD EKT 
single-line EKT) and is connected to the sys- 
tem via a 4-conductor modular line cord. All 
EKTs are easily wall-mounted and are hear- 
ing-aid compatible. 
03 ELECTRICAL CHARACTERISTICS 
General 
The HKSU operates from an internal power 
supply, which connects to a nominal 117 
VAC, grounded wall outlet. 
Loss of AC power will cause operational 
failure of the system. System memory, how- 
ever, 
is protected from loss due to power 
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							STRATA Vls 
GENERAL DESCRlPTlON 
NOVEMBER 1986 
failure with a memory backup battery. In ad- 
dition, full system reserve power is available The electrical characteristics of the system 
are detailed in Table A. 
as an option. 
04 FEATURES 
and SERVICES 
NOTE. 
The batteries used are designed to 
maintain full memory protection for up 
to five years with no external power 
source applied. 
The features and services of this electronic 
key telephone system are summarized in Ta- 
bles B and C, which list the standard and 
optional features, respectively. 
TABLE A 
SUMMARY OF ELECTRICAL CHARACTERISTICS 
Loop Limits 
Station 
Door Phone Control Unit (HDCB) 
Door Phone/Monitor Station 
HOLB, HOXB, HSMB 
Ringing Tones 
CO Line (idle EKT) 
CO Line (busy EKT) 
Intercom Line 
Door Phone A & C Tones 
Door Phone B Tone 
Dial Tone (Intercom) 
Busy Override Tone 
Ringback Tone 
Busy Tone 
Do Not Distuib Tone 
Voice Page Warning Tone 
Executive Override Warning Tone 
Hold Recall Tone 
Dialing 
Primary Power 
HPSU 7120 
Environmental Specifications 
Operating Temperature 
Operating Humidity 
1,000’ (305 M). 24 AWG cable 
1,000’ (305 M)] 24 
AWG cable 
1,000’ (305 M), 24 AWG cable 
17’, (5.2 M), 24 AWG cable 
600/800 Hz, modulated by 16 Hz, 1 second on 
-3 seconds off 
2,400 Hz, modulated by 10 Hz; 1 second on-3 
seconds off 
4 
600 Hz, 1 second on-3 seconds off 
870 Hz, 1 second1710 Hz, 
2 l/2 seconds (5 
rings) 
870 Hz, l/2-second/710 Hz, 2 l/2 seconds (5 
rings) 
400 Hz, continuous  2,400 Hz, 
1 second on-3 seconds off 
400 Hz, 1 second on-3 seconds off 
400 Hz, l/4-second on-‘! /4-second off 
400 Hz, l/8-second on-l/8-second off 
600 Hz, 1 second on only (via EKT speaker) 
600 Hz, l/2-second on only (via handset) 
2,400 Hz, modulated by 10 Hz, 1 second on-l 
second off 
Push-button; system-generated DTMF or dial 
pulse 
117 VAC, 60 Hz 
100 watts 
32 - 22” F (0 - 50” C) 
20 - 80% relative humidity. without condensation 
-4-  
						

							STRATA We 
GENERAL DESCRIPTION 
NO\IEMBER 1986 
TABLE B 
STANDARD FEATURES 
SYSTEM 
l All Call Voice Page 0 Multiple Simultaneous Handsfree Intercom 
l Automatic Dialing-System Paths 
l Automatic Hold Recall l Music-On-Hold Interface 
l Automatic Release from Hold l Night Ring Answer Code 
l CO Call Pickup l Night Ringing Over External Page 
l Conference (Multi-Station)“. l Night Transfer 
l Conference (Multi-CO Line)* l Non-blocking Dialing 
l Distinctive Ringing l Outgoing Call Restriction 
l DTMF and Dial Pulse CO Line Compatible 0 PBX Compatible 
o External Page Interface 
l Privacy/Non-Privacy 
l Flexible Key Assignment l Private CO Lines 
0 Flexible Line Ringing Assignment 0 Relay Service 
l Forced Account Code l Toll Restriction (6-digit) 
l Group Paging l Toll Restriction Override by System Auto- 
* Live System Programming matic Dialing 
l Message Waiting l Voice or Tone Signalling 
l MF Signal Time (160/80 ms) l Wall Mountable HKSU 
*Non-amplified 1 
STATION 
c- 
0 Automatic Callback (Intercom) l Handsfree Answerback 
0 Automatic Dialing-Station 
l l-called Illumination 
l Automatic Off-Hook Selection 0 l-hold Illumination 
l Busy Override 0 l-use Illumination 
l Call Forward l Modular Handset and Line Cords 
l Call Pickup l On-Hook Dialing 
l Call Transfer with Camp-on 0 Push-Button Dialing 
l Directed Call Pickup l Repeat Last Number Dialed 
l Direct Station Selection (DSS) Keys l Ringing Line Preference 
0 Do Not Disturb 
l Saved Number Redial 
0 Do Not Disturb Override 
l Station Security (MC0 Key) 
l DP/MF Mode Change (TONE Key) l Station-to-Station Message Waiting with 
l Exclusive Hold LCD 
l Executive Override (Break-In) l Trunk Queuing 
l Flash Key (PBX Transfer or CO Dial Tone 
Recall) 
TABLE C 
OPTIONAL FEATURES 
0 
Background Music with Station Control 
0 Door Phone/Monitor Station 
l Alarm Key 
l Door Lock Key 
l EKT Faceplates (Blue, Black or Wine) 
l External Page Amplifier 
0 Music-On-Hold Source 
l Off-Premises Extension 
l Ring Generator/Power Supply (MRGU) 0 Off-Premises Line 
l Station Message Detail Recording (SMDR) 
l System Battery Backup 
l Single-Line EKT . 
l lo-key EKT (HFU or Speakerphone) 
0 lo-key Busy Lamp Field (BLF) EKT 
l 20-key EKT (HFU or Speakerphone) 
l 20-key Liquid Crystal Display (LCD) EKT 
-5-  
						

							STRATA We 
GENERAL 
DESCRIPTION 
NOVEMBER 1986 
05 SYSTEM OPERATION 
General 
the HKSU and the EKTs are made via a 
customer-provided main distribution frame 
(MDF). Using modular line cord(s), the CO 
consrsts 01 an 
to 16 electronic 
to three door 
r 
phones (the door phone control unit occupies 
one station), and optional modules (HOLB, 
HC)XB and HSMB). All connections between ._.. - -..- ._... -,_ -- . ..-_-. -.-- --_____.. 
The system (Figure 10) 
HKSU, power supply and up 
key telephones (EKTs), up side panel and the locally provided RJ-25C 
(up to two each) or RJ-11C (up to six each)  lines are then connected between the left 
jacks. An external tuner (or equivalent) is re- 
quired if the 
Music-On-Hold/Background 
Music feature is utilized. 
t-Printer 
] HHSl 
HK :su 
Standard Phone 
tandard 
hone 
/lHOXBl 
RJ-25C 
i--h RJ-11C 
EKT 
1 
CO/PBX * 
Standard Phone 
FIGURE lo--SYSTEM DIAGRAM 
A functional block-diagram of the HKSU is tion connections (SSTU), additional CO con- 
shown in Figure 
11. It consists of CO and nections (VCOU), Off-Premises Line (HOLB), 
station interfaces on the VMAU, including a Off-Premises Extension (HOXB) as well as 
solid-state, space-division matrix and the 
the ring generator/power supply (MRGU) and 
central control equipment (VCCU). Optional the 
Station Message Detail Recording 
interfacing equipment includes additional sta- (HSMB). 
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							STRATA Vie 
GENEaAL DESCRIPTION 
NOVEMBER 
1986 
’ HOLB 1 
__- 
VMAU 
- 
SSTU #2 #22 - 25 
Door Phone/ 
Monitor Station 
FIGURE 11 -FUNCTIONAL BLOCK DIAGRAM 
Connections between the station voice 
lines and the CO lines are via the switching 
matrix provided on the VMAU PCB 
The system is entirely under the control of 
a single-chip microprocessor, located (along 
with the system program and data memories) 
on the VCCU PCB. 
06 SYSTEM CONFIGURATION 
Key Service Unit 
The HKSU arrangement illustrated in Fig- 
ure 12 shows the locations of the various 
PCBs and optional equipment. The optional 
modules are used only when required. All PCBs connect to the VMAU (in some cases, 
they also attach to the HKSU’s side panel). 
Complete with all available options, the 
HKSU utilizes up to seven different printed 
circuit boards internally (as shown in Figure 
12) and various option modules. The func- 
tions of the internal units and power supply 
are: 
VMAU: The main PCB of the HKSU consists 
of the following three functions: 
a) 
Station Interface-An interface between 
the HKSU and up to eight EKTs, which 
includes the solid-state, space-division 
matrix used for voice connections be- 
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							STRATA Vls 
GENERAL DESCRIPTION 
NOVEMBER d 986 
FIGURE 12-HKSU (with PCBs) 
tween 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) CO 
Interface-An interface between 
the HKSU and the public telephone 
network or PBX for three lines. Ring 
detection, hold and dial outpulsing for 
three lines are performed by this 
PCB. Depending upon local CO re- 
quirements, the VMAU is program- 
med to provide DTMF or rotary-dial 
outpulsing. 
c) Tone-Performs a number of miscel- 
laneous system functions: 
0 
9 
0 
0 Generates system tones. 
Provides the switching matrix for 
the delivery of tones for both 
paging and intercom connections. 
Houses the interface for the exter- 
nal page. 
Houses the interface for music-on- 
hold. 
VCOU: An optional interface between the 
VMAU and three additional public telehone 
network or PBX lines. Depending upon lo- 
cal CO requirements, the VCOU is pro- 
grammed to provide DTMF or rotary-dial 
outpulsirg. The VCOU PCB serves up to 
three CO/PBX lines and three OPLs. 
SSTU: An optional 
interface between the ... 
HKSU and stations 18 - 25. Each SSTU 
PCB serves up to four EKTs. Two-pair wir- 
ing is required for each EKT; one pair car- 
rying voice and the other pair carrying 
control data to and from the EKT. 
VCCU: All system control functions are per- 
formed by the single-chip microprocessor 
on this PCB. 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. A battery on 
this PCB protects system memory should a 
power failure occur. 
SMOU: The SMOU is an optional music-on- 
hold source that provides electronic syn- 
thesized music. One of two musical tunes 
are available, selected via a switch on this 
PCB. The SMOU is connected to the 
VMAU via a 7-pin connector. 
SEPU: An optional 3-watt amplifier for ex- 
ternal paging, using a customer--supplied 
8-ohm speaker (connected to the VMAU 
via a IO-pin connector). 
HPSU 7120: The system’s required voltages 
are provided by this factory-installed power 
. 
supply. The HPSU requires 117 VAC, 60 
Hz, with a permissible AC input voltage 
range of 90 - 130 VAC. 
HPBU-7: An optional battery backup unit. It 
is a PCB that mounts inside the power 
supply housing and is connected to the 
recommended battery pack (which is 
customer-supplied, consisting of two 12 
VDC, maintenance-free, automobile-type 
batteries-80 amp/hour maximum rating). 
With the optional battery backup assembly 
installed, all functions of the 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 
or from battery power. 
Option Modules 
HOLB: 
An off-premises line module that al- 
lows the bridging of a CO/PBX line, which 
appears in the system with a conventional 
telephone; supervision is provided. Each 
HOLB provides three circuits, all three of 
which may be directed to an answering 
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