Toshiba Strata E Electronic Key Telephone System Installation And Maintenance Manual

							3 I HATAS,/& 
GENERAL DESCRIPTION 
AUGUST 1989 
FIGURE 9-W-button ELECTRONIC TELEPHONE 
FIGURE Xl-ZO-button ELECTRONIC TELEPHONE 
0 CO Line Identification 
l Speed Dial Memo 
l Timed Reminders 
System software allows the customer to assign 
feature buttons on all electronic telephones in a 
completely flexible manner. 
Electronic Telephone Upgrade Options: All elec- 
tronic telephones may be upgraded with Off- 
hook Call Announce. Loud Ringing Bell and 
Headset capability. 
l Off-hook Call Announce Upgrade: Each 
electronic telephone may be upgraded to 
receive intercom calls when the handset is 
off-hook by installing an Off-hook Call An- 
nounce upgrade assembly. 
FIGURE 1 I-20-button LIQUID CRYSTAL 
DISPLAY ELECTRONIC TELEPHONE 
NOTE: 
On/y those telephones programmed to re- 
ceive OCA announcements need the OCA 
upgrade. 4 
The assembly consists of two PCBs, the HVSU 
and the HVSI, which install inside the telephone 
base with plug-in connectors. 
l Loud Ringing Bell/Headset Upgrade: Each 
electronic telephone may also be upgraded 
to provide a loud ringing bell interface and a 
modular headset interface. To accomplish 
this. an upgrade assembly consisting of a 
small PCB (HHEU) installs on the main PCB. 
inside the telephone. with a plug-in connec- 
tor. 
An External Speaker (HESB) is directly con- 
nected to the upgraded phone. When the phone 
rings, the HESB sounds a loud tone that mimics the 
phone’s ring. See Peripheral Equipment.* 
Most standard headsets plug into the HHEU 
jack and are compatible with the electronic tele- 
phone. 
An electronic telephone may use all available 
upgrade options simultaneously. For example, the 
same station may be upgraded with OCA, a Loud 
Ringing Bell and a headset. 
.s 
-- 
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							More Electronic Telephone Standard Features: 
All electronic telephones may be wall mounted 
without additional equipment. They are also 
hearing aid-compatible. 
Each electronic telephone also features a stan- 
dard modular handset cord, and is connected to 
the system with a 2-pair modular line cord. Various 
upgrade options, such as the Off-hook Call An- 
nounce and Loud Ringing Bell upgrade assem- 
blies, require the telephone to be connected to the 
system with special wiring. (A 3-pair modular line 
cord is required for Off-hook Call Announce, and a 
custom external speaker cable is required for the 
Loud Ringing Bell.) 
3 ELECTRICAL CHARACTERISTICS 
General 
The key service unit operates from an internal 
power supply: which connects to a standard 3- 
wire. 
117 VAC. 60-Hz. grounded wall outlet. 
Loss of AC power will cause operational failure 
of the system. System memory, however. is pro- 
tected from loss due to power failure with a memory 
backup battery. ‘Full system reserve power is 
available as an option. 
NOTE: 
The memory backup battery is designed to 
maintain full memory protection for approx- 
imatelyone year with no externalpowersource 
applied. 
STRATAS,/VI, 
GENERAL DESCRIPTION 
AUGUST1989 
4 FEATURES and SERVICES 
The features and services of these electronic 
key telephone systems are summarized in Tables’ 
B and C, which list the standard and optional 
features, respectively. 
The electrical characteristics of the system 
are summarized in Table A. 
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							alnHlAJe/Vle 
GENERALDESCRIPTION 
AUGUST1989 
TABLEA 
SUMMARYOFELECTRICALCHARACTERISTICS 
Loop Limits 
Station 
Door Phone Control Unit (HDCB)-to-KSU 
Door Phone/Monitor Station-to-HDCB 
HOXB-to-Station 
HOLB-, HSMB-, HCNB-, HOXB-to-KSU 
HIOB-to-KSU 
HIOB-to-Peripheral 
Ringing Tones 
CO Line (idle station) 
CC Line (busy station) 
HIOB Station (Intercom) 
HIOB Station (CO call) 
Intercom Line 
Door Phone A & C Tones 
Door Phone B Tone 
Busy Override Tone 
Dial Tone (intercom) 
Ringback Tone 
Busy Tone 
Do Not Disturb Tone 
Voice Page Warning Tone 
Off-hook Call Announce Warning Tone 
Executive Override Warning Tone 
Hold Recall Tone 
Dialing 
Primary Power 
HPSU 6120 (Se) 
HPSU 7120 (VI,) 
Environmental Specifications 
Operating Temperature 
Operating Humidity 
1,000’ (305 M), 24 AWG cable, 2 pair,(3-pair wit OCA) 
1,000’ (305 M), 24 AWG cable, 2 pair 
1 .OOO’ (305 M), 24 AWG cable, 1 -pair 
500 ohms (including telephone), 48*VDC, l-pair 
17’ (5.2 M), 24 AWG cable, number of pair as required 
650’ (200 M), 24 AWG cable, 2-pair 
300 R maximum, including peripheral resistance, 1 -pair 
600/800 Hz. modulated by 16 Hz, 1 second on-3 sec- 
onds off 
2.400 Hz, modulated by 10 Hz! 1 second on-3 seconds 
off 
20 Hz! 15OV P-P: 1 second on-3 seconds off 
20 Hz, 15OV P-P, l/4 second on-l/4 second off-l/4 
second on-l/4 second off @ 4-second intervals. 
600 Hz, 1 second on-3 seconds off 
870 Hz: 1 second/710 Hz, 2-l/2 seconds (5 rings) 
870 Hz. l/2 second/710 Hz, 2-l/2 seconds (5 rings) 
2.400 Hz, 1 second on-3 seconds off 
400 Hz, continuous 
400 Hz? 1 second on-3 seconds off 
400 Hz, i/4 second on-l/4 second off 
400 Hz, l/8 second on-l 18 second off 
600 Hz. 1 second on only (via electronic telephone 
speaker) 
600 Hz. 1 -second on only (via electronic telephone 
speaker) 
600 Hz. 112 second on only (via handset) 
2.400 Hz. modulated by IO Hz, 1 second on-l second 
off 
Pushbutton; system-generated DTMF or dial pulse 
117VAC; 60Hz 
40 watts 
100 watts 
32 
- 122F(O .., 50°C) 
20 m 80% relative humidity without condensation  
						

							STRATAS,/VI, 
GENERALDESCRIPTION 
AUGUST1989 
TABLEB 
STANDARDFEATURES 
SYSTEM 
l All Call Voice Page 
l Alternate Point Answer 
o Automatic Dialing-System 
l Automatic Hold Recall 
l Automatic Release from Hold 
l CO Line Call Pickup Groups (Vie only) 
e Conferencing (non-amplified) 
l CTXiPBX Compatible 
l CTX Ringing Repeat 
l Delayed Ringing 
l Distinctive Ringing 
l DTMF and Dial Pulse CO Line Compatible 
l DTMF Signal Time (80/160 ms) 
0 Dual FCC Registration 
l External Page Interface 
l Flexible Intercom Numbering 
l Flexible Button Assignment 
0 Flexible Line Ringing Assignment 
l Forced Account Code 
0 Group Paging 
9 Least Cost Routing (VI, only) 
l Automatic Callback (Intercom) 
@ Automatic Dialing Buttons 
s Automatic Dialing-Station 
s Automatic Off-hook Selection 
* Busy Override 
l Call Forward 
@ Call Pickup 
* Call Transfer with Camp-on 
* COICTXIPBX Feature Buttons 
l Directed Call Pickup 
9 Direct Station Selection (DSS) Buttons 
s Distinctive LED Indications 
l Incoming Call 
l In-use 
l On-hold 
0 Do Not Disturb 
s Do Not Disturb Override 
0 DP’MF Mode Change (TONE Button) 
0 Exclusive Hold 
* Executive Override (Break-in) 
l Live System Programming . 
l Message Waiting 
l MF Signal Time (160/80 ms) 
l Multiple Simultaneous Han&free Intercom 
Paths 
l Music-on-Hold Interface 
l Night Ringing Answer Code 
l Night Ringing Over External Page (Vie only) 
* Night Transfer 
* Non-blocking Dialing 
l Outgoing Call Restriction 
@ Privacy/Non-privacy 
* Relay Service (VI, only) 
l Station Hunting 
0 Toll Restriction (6-digit) 
l Toll Restriction Override by System Automatic 
Dialing 
d ._ 
l Trunk-to-Trunk Connection 
e Voice or Tone Signaling 
* Wall Mountable Key Service Unit 
STATION 
s Liquid Crystal Display Features 
l Alphanumeric Messaging 
- Busy Station Messaging 
- Called Station Messaging 
- Calling Station Messaging 
- Remote Station Messaging 
l Busy Lamp Field (BLF) Indications 
l CO Line Identification 
l Speed Dial Memo 
l Timed Reminders 
0 Microphone Cut-off Button 
l Modular Handset and Line Cords 
l On-hook Dialing 
* Privacy Button 
l Privacy Override 
* Private CO Lines 
0 Pushbutton Dialing 
l Remote Retrieval of Held Calls 
* Repeat Last Number Dialed 
l Ringing Line Preference 
e Flash Button (CTXIPBX Transfer or CO Dial 
l Saved Number Redial 
Tone Recall) 
l Toll Restriction Override Code 
l Handsfree Answerback l ,Trunk Queuing 
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							STRATASJVI, 
GENERALDESCRIPTION 
AUGUST1989 
TABLEC 
OPTIONALFEATURES 
l lA2 Key System Interface (HCNB) 
0 Amplified Conference 
l Auxiliary Device Interface (HIOB) 
l Call Forward to Voice Mailbox 
l Message Waiting Indication 
l Voice Mail Control 
l Background Music with Station Control 
l Door Phone/Monitor Station 
l Alarm Button 
l Door Lock Button 
l Electronic Telephones 
l 1 O-button Handsfree Answerback or speak- 
erphone 
l 20-button Handsfree Answerback 
l 20-button Liquid Crystal Display 
l External Amplified Speaker (HE%) 
l Amplified Speaker , 
l Loud Ringing Bell 
* Talkback Amplified Speaker 
l External Page Amplifier .*- 
l Music-on-Hold Source 
l Off-hook Call Announce 
l Off-premises Extension 
l MRGU 
l Off-premises Line 
. Remote Administration/Maintenance 
l Station Message Detail Recording (SMDR) 
l System Battery Backup , 
Key 
24 VDC 
Backup 
Battery 
External Speaker 
External 
Music 
Source 
Service 1 Jnit 
lT!@sk Standard Phone 
1 O-huttnr 
Electronic 
Telephone 
L-_CO/PBX Lines ___f 
FlGURE12-SYairtlvl UlALiHAM 
.> 
-8-  
						

							STRATAS,/VI, 
GENERAL DESCRIPTION 
AUGUST 1989 
STRATA 
20.button LCD I 
I lllil 
Electronic Teleph 
- 1, To CO/PBx 
‘3.Pair requred for Off-hook Call Annoonce 
STRATA 
VI, 
1 O-button 
Electrons 
Telephone SSTU --2 22 25 
20.button LCD I 
Elecrrontc Telephone I 
I lllll 
,* EXtWnal 
Speaker 
iHESl3) 
FIGURE 13-FLiNCTI 
DNAL BLOCK DIAGRAM 
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							STRATAS,/VI, 
GENERAL DESCRIPTION 
AUGUST 1989 
STMU SDTU 
FIGURE 14-STRATA S, KEY SERVICE UNIT 
5 SYSTEM OPERATION 
General 
A system (Figure 12) consists of a key service 
unit (VI, HKSU is shown), power supply. up to 16 
stations”, HIOB, HDCB, HCNB, HOLB. HSMB and 
HOXB optional modules. and a maximum of six 
door phones. The door phone control unit(s) (HDCB) 
occupy one or two station location(s). All connec- 
tions between the key service unit and the tele- 
phones are made via a customer-provided main 
distribution frame. Using modular line cord(s), the 
CO lines are then connected between the left side 
panel and the locally provided RJ-2% (up to two 
each) or RJ-11 C (up to six each) jacks. An external 
tuner (or equivalent) is required if the Music-on- 
Hold/Back-ground Music feature is utilized. 
“Some optional features reduce maximum 
station capacities (see Optional Features). 
Functional block diagrams of both key service 
units are shown in Figure 13. Each consists of CO 
and station imerfaces on the main PCB. including 
a solid-state, space-division matrix and the central 
control equipment (SCCU/VCCU). Optional inter- 
facing equipment includes additional station con- 
nections (SSTU), off-hook call announce (SVCU). 
remote maintenance (SDTU), off-premises line 
(HOLB), station message detail record (HSMB/ 
STMU”), IA2 interface (HCNB), auxiliary device 
interface (HIOB), door phone controller (HDCB) 
and door pl,~ne/monitor station, external page 
SEPU 
vcou 
FIGURE 15-STRATA VI, KEY SERVICE UNIT 
amplifier (SEPU), internal music-on-hold source 
(SMOU), and power failure (SPFU*) PCBs are also 
shown. 
*STRATA Se only 
-. 
The system is entirely under the control of a 
single-chip microprocessor, located (along with 
the system program and data memories) on the 
SCCUiVCCU PCB (STRATASe/VIe, respectively), 
which mounts on the SMAWVMAU, respectively. 
Connections between the station voice lines 
and the CO lines are via the switching matrix 
provided on the SMAU/VMAU PC6 (STRATA Se/ 
VI,. respectively). The SMAUIVMAU also pro- 
vides a similar matrix for intercom connection, 
background music. paging connections and the 
distribution of various system tones (dial, busy. 
etc.). 
6 SYSTEM CONFIGURATION 
Key Service Unit 
The STRATA Se key service unit arrangement 
illustrated in Figure 14 shows the locations of the 
various printed circuit boards and optional equip- 
ment. 
The STRATA VI, key service unit arrangement 
illustrated in Figure 1.5 shows the locations of the 
various printed circuit boards and optional equip- 
ment. .s 
-. 
. 
-lO-  
						

							STRATAS,/VI, 
GENERALDESCRIPTION 
- AUGUST1989 
NOTE: 
The optional modules are used on/y when 
required. All internal boards connect to the 
main PCB (in some cases, they also attach to 
the key service unit’s side panel). 
Complete with all available options, both key 
service units utilize up to eight printed circuit boards 
internally (as shown in Figures 14 and 1.5) and 
various option modules. The names and functions 
are as follows: 
SMAUNMAU: The main printed circuit board of 
the key service unit consists of the following 
three functions: 
a) Station interface: An interface between the 
key service unit and up to four stations (Se) or 
up to eight stations (VI,), which includes the 
solid-state. space-division matrix used for 
voice connections between the stations and 
the CO/PBX lines. Two-pair wiring is required 
for each station; one pair carrying voice and 
other pair carrying control data to and from 
the station: 
b) CO Interface: An interface between the key 
service unit and the public telephone network 
or PBX for up to two lines (Se) or up to three 
lines (VI,). Ring detection, hold and dial 
outpulsing for these lines are performed by 
this board. Depending upon local CO re- 
quirements, each incoming line can be sepa- 
rately connected and programmed to provide 
DTMF or rotary-dial outpulsing. 
CJ Tone: Performs a number of miscellaneous 
system functions: 
* General system tones 
e Provides the switching matrix for the de- 
livery of tones for both paging and inter- 
com connections. 
SCCUIVCCU: All system control functions are 
performed by the single-chip microprocessor on 
this printed circuit board. The system program 
stored in ROM. RAM for system operations. and 
the RAM for system data storage are also lo- 
cated on this circuit board. A battery on this 
board protects system memory should a power 
failure occur. 
SCOUNCOd: An optional interface between the 
SMAUNMAU and one/three additional CO line(s). Depending upon local CO requirements, 
the SCOUNCOU is programmed to. provide 
DTMF or rotary-dial outpulsing. The SCOU _ 
serves one CO line; the VCOU serves up to 
three CO lines, and both serve up to three off- 
premises lines. 
SSTU: An optional interface between the key serv- 
ice unit and stations 18 - 25 (stations 14 - 17 on 
Se). Each SSTU PCB serves up to four stations. 
Two-pair wiring is required for each station; one 
pair carrying voice and the other pair carrying 
control data to and from the station. 
SMOU: An optional music-on-hold source that 
provides electronic synthesized music. A choice 
of two musical tunes are available, selected via 
a switch on this board. The SMOU is connected 
to the SMAUNMAU via an 8-pin connector. 
SEPU: An optional 3-watt amplifier for external 
paging. using a customer-supplied 8-ohm 
speaker (connected to the SMAUNMAU via a 
1 O-pin connector). 
SVCU: The Off-hook Call Announce interface that 
mounts on the main printed circuit board of the 
key service unit to provide OCA access. One 
SVCU is required for every eight stations requir- 
ing OCA. (Adds two intercom lines in VI,.) 
SDTU: Provides Remote AdministrationiMainte- 
nance access via its built-in 300/1200 bps 
modem. One SDTU per system is required for 
Remote AdministratioNMaintenance. 
STMU: Required for connection to an HSMB to 
provide SMDR for a STRATA Se key service 
unit. 
HPSU 6120/7120: Each system’s required volt- 
ages are provided by one of these factory- 
installed power supplies. The HPSU connects to 
a standard 3-wire, 117 VAC, 60-Hz, grounded 
wall outlet. with a permissible AC input voltage 
range of 90 -- 130 VAC. 
HPFB: An optional battery backup unit that is 
available for the HPSU 6120 (Se). With the 
optional battery backup assembly installed, all 
functions of the system will continue to operate  
						

							STRATASJVI, 
GENERAL DESCRIPTION 
AUGUST 1989 
for approximately two to three hours after a loss 
of normal electrical power. Calls will not be 
disconnected during switch-over to or from bat- 
tery power. 
HPBU-7: An optional battery backup unit for the 
HPSU 7120 (VI,). It is a printed circuit board 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 oper- 
ate for several hours (the actual time period is in 
direct ratio to the type and size of batteries se- 
lected) after a loss of normal electrical power. 
Calls will not be disconnected during switch- 
over to or from battery power. The HPBU-7 also 
provides a charge to the battery pack during 
normal operations. 
Option Modules 
HOLB: 
An off-premises line module that allows the 
bridging of a CO line! which appears in the 
system! with a conventional telephone: supervi- 
sion is provided. Each HOLB provides three 
circuits, all three of which may be directed to an 
answering machine (or similar device) attached 
to the HUNT connector. 
HDCB: An optional module (two per system maxi- 
mum) connected to the key service unit at sta- 
tion 13 and/or 14 (station 11 and/or 12 on Se) 
that allows up to three (each HDCB) door phonei 
monitor stations (MDFBs) to ring pre-selected 
stations. The HDCB has three outputs (A, 8. C), 
which are modular connectors for the three 
MDFBs. Outputs B and C may be used for the 
Door Lock feature. An alarm monitor can be 
used at station 11113C only. 
HOXB: An external module that serves as an 
interface between the key service unit and con- 
ventional. standard telephones or off-premises 
extension (OPX) lines. Each HOXB PCB serves 
two extensions: Se supports two HOXBs, VI, 
supports four. An HOXB will operate with either 
DTMF or rotary-dial telephones. One auxiliary ring generator/power supply (MRGU) is required 
for use with up to three HOXBs. 
HSMB: Serves as an interface between the key ’ 
service unit and a printer or storage device used 
for the SMDR feature. The module is equipped 
with an RS-232C interface and connects to the 
left side panel via one supplied 8-wire modular 
connector (one HSMB per Svstem). (Se also 
requires an STMU PCB.) - 
HCNB: Provides an interface between a IA2 key 
system and the CO lines appearing therein to a 
STRATA, system. One HCNB is required for 
every three lines where (j ::i appearances are 
desireo. AI.$IJ. A-IeD-! _._ rVI bLI Ji, lamp signal detec- 
tion and cir,; outpulsing are performed by this 
module (see Figure 16). 
’ 
Kev -CO/CTX/PBX 
Lines 
HKSU 
1 
co [- T&R 
: 
OPL 
OPL HCNB 
1 1 
FIGURE16 
1A2lNTERFACEFUNCTlONALBLOCKDlAGRAM 
HIOB: 
Provides one circuit to interface with exter- 
nal devices such as voice mail port, answering 
machine, standard telephone. modem, etc. Up 
to eight HlOBs (four in Se) may be installed in a 
system. A 24 VDC power supply, which con- 
nects to the unit via a 7’ cord and plugs into a 117 
VAC! 60 Hz outlet, is included with each HIOB. 
Each HIOB is connected to a proprietary station 
port. reducing station capacity accordingly. 
Station Equipment 
The principal components of the electronic  
						

							telephone are: handset, dial pad. speaker, mi- 
crophone, two volume controls, four fixed feature 
buttons, an 5 button, 
and 9 or 19 flexible CO/ 
feature buttons, LED indicators are provided for all 
buttons except m and m. See Figures 9? 
10 and 11. 
A 20-button Liquid Crystal Display electronic 
telephone (Figure 11) with speakerphone may be 
located at any or all of the stations. The 32- 
character alphanumeric display provides many 
capabilities-an accurate clock/calendar in its idle 
state; and elapsed time, dialed number, calling 
station and CO line are just a few of the features 
available. For additional explanations of the fea- 
tures listed below, see Liquid Crystal Display. 
@ Alphanumeric Messaging 
l Busy Station Messaging 
l Called Station Messaging 
l Calling Station Messaging 
l Remote Station Messaging 
l Busy Lamp Field (BLF) Indication 
l CO Line Identification 
l Speed Dial Memo 
l Timed Reminders 
All phones are easily converted for wall mount- 
ing, feature .moduiar handset cords. are equipped 
with a second modular connector for headset 
connection. and are connected to the system via 
modular line cords. 
The optional door phone/monitor station (Fig- 
ure 8) ailows distinctive ringing to preselected 
station(s). When a station dials an individual door 
phone, a circuit providing monitoring capabilities 
on the intercom is established. This option requires 
station 13 and/or 14 (station I 1 and/or 12 in STRATA 
Se) to be replaced by a door phone control unit 
(HDCB) and up to six door phone units (MDFBs)- 
three each HDCB. One door phone/monitor (only 
station 13C for VI,; 11 C for S,) can be replaced by 
an alarm control circuit on starion 13/i 1 HDCB and 
one by a door lock control circuit on ail HDCBs. 
An external amplified speaker (HESB) may be 
connected in any one of the following three appli- 
cations: 
l Loud Ringing Bell: Allows you to amplify the 
tone of a pagingiringing signal without using 
STRATAS,/VI, 
GENERAL DESCRIPTION 
AUGUST 1989 
other manufacturer’s equipment. Three-pair 
wiring is required for this application. . 
Amplified Speaker: Allows you to use the HESB . 
as a paging speaker, reducing the need for 
other manufacturer’s paging equipment. 
Taikback Amplified Speaker: Allows you to 
provide a talkback speaker in areas where a 
telephone is not needed. For&alkback opera- 
tion, connect the HESB to the door phone unit 
(MDFB), which is used as a microphone; how- 
ever, the push-button is inoperative. 
The HESB is a 6” 3-watt speaker with an 
amplifier that is built into an attractive speaker box 
(Figure 8). A +I2 VDC power supply (HACU-120), 
which connects to the back panel via an 8’ cord. is 
included with each HESB. 
Installation 
The key service unit is configured for wall 
mounting only. * 
All external devices are connected to the key 
service unit via connectors and terminals on the 
side panels as follows: 
a) CO lines are connected to the key service unit 
right side panel via separate (one for each line) 
single-pair modular cords or a single 3-pair 
modular cord (Se); or two 3-pair or six single- 
pair modular cords (Vle). 
b) The station connection points are extended 
from the key service unit to the main distribution 
frame using 3-pair modular line cords. The 
individual telephones are connected to the main 
distribution frame using 3-pair station cables. 
c) A screw-terminal barrier strip is mounted on the 
left-hand side of the key service unit to provide 
attachment points for the music-on-hold source 
input. relay service (Vie only) and external page 
output). 
d) Two (only one for Se) modular connectors are 
also provided on the left side panel for two (only 
one for Se) optional off-premises line moduies 
(HOLBs). 
The power supply is mounted inside the key 
service unit. In STRATA Se a connector is provided 
on the left side panel for optional system reserve 
power (HPFB). In STRATA VI, an optional battery 
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