Toshiba Strata Vi Electronic Key Telephone System Installation And Maintenance Manual

							DP for rotary dial outpulsing). 
Each !VICOU PCB serves up to 
three CO/PBX lines. 
MSTU-an interface between the 
MKSU and EKTs, which includes 
the solid-state space division mat- 
rix used for voice connections be- 
tween the EKTs and the CO/PBX 
lines. Each W!?TU PCB serves up 
to eight EKTs. Two-pair wiring is 
required for each EKT; one pair 
carrying voice and the other pair 
carrying data to and from the EKT. 
MCCU-all system control functions 
are performed by the single-chip 
microprocessor located on the 
MCCU. The system program stored 
in ROM, the RAM for system oper- 
ations, and the battery-protected 
RAM for system data storage are 
also located on this circuit board 
CKDU-this optional PCB mounts 
directly on the 
MCCU to provide 
the additional memory capacity re- 
quired for the 4utomatic Dialing- 
Station feature. The RAM con- 
taining the additional memory cap- 
acity is battery-protected. 
MTOU-performs a number of mis- 
cellaneous system functions: Generates system tones. 
Provides the switching matrix 
for the delivery of tones for 
both paging and intercom con- 
nections. 
Houses the external page amp- 
lifier. 
Rouses circuitry and connection 
points for the relay service and 
music-on-hold. 
Provides connection points for 
the 24 VDC input power. 
Houses the voltage regulators 
that provide 12 and 5 VDC for 
system operation. 
The separate Power Supply 
_. 
Assembly (EPSA) is a fixed unit com- 
plete with a wall mounting bracket. 
Attachment to a wall or other fixed 
surface is via two l/4-inch toggle bolts 
or screws. The unit can accommodate 
“brown out” conditions or high voltages 
within a range of 90 VAC to 130 VAC, 
60 Hz. A lo-ft. AC power cord allows 
flexibility in placing the power supply 
during installation. Physical parameters 
are: 
Length: 10.875 in. (276 mm> 
Width: 10.125 in. (257 mm) 
Height: 
6.375 in. (162 mm> 
Weight: 32.00 lbs. (14.5 kg) 
3.12 An optional battery back-up 
capability (PBBLT) is available as a PC6 
which couples directly into the EPSA. 
The recommended battery pack, which 
is customer supplied, consists of two 12 
VDC automobile maintenance-free type 
batteries. With the optional battery 
back-up installed, all functions of the 
STRATA VI system will operate for 
approximately 12 hours after a loss of  
						

							nor ma1 electrical power. 
No calls will 
be disconnected during switch-over to 
battery power. 
The principal components of 
the STRATA VI Electronic Key Tele- 
phone (Figure 8) are: Handset, Dial Pad, 
Speaker, Ringing 
Volume Control) 
Speakerphone Volume Control, 2 Inter- 
com Keys, 6 CO/PBX Line Keys and 6 
Feature Keys, Keys for the Intercom, 
CO/PBX Lines, Speakerphone, Message 
WaitinglFlash and Do Not Disturb are 
provided with LED indicators--HOLD, 
CUNF and 
MUTE keys have no LEDs, 
Standard features of 
the 
‘I’A VI EKT include full speaker- 
- phone capability, handsfree talk-back, 
modular handset cord and modular line 
cord. 
The EKT is easily converted 
wall mounting with an 
optional 
handset hanger kit. 
The 20-key EKT features, in 
on to those of the standard EKT, 
include the following: 
Seven keys (AD 1 through 7) for 
one-button auto-dial. 
Auto-dial access (REP). 4utomatic redial of last number 
dialed by pressing one key (RDL). 
A pause key for “behind PBX” use 
(PALI). 
The 
STRATA VI MKSU is 
ged at the factory for table-top 
mounting, but a simple reversal of the 
back panel quickly converts it for wall 
mounting. 
All connections to the MKSU 
made via the faceplates of the 
various printed circuit boards, 
CO/PBX line connections are made 
to the front of each MCOU using a 
%-pair modular cord for each card. 
Each group of eight 
EKTs is 
connected to the front of each 
;MSTU with one standard 50-pin 
ampherol-type connector. 
Screw terminal barrier strips are 
mounted on the front of the iLlTOIl 
to provide attachment points for 
the following connections: 
24 
VDC power input 
Music-on-hold source input 
External page output 
Night relay service 
External page relay service 
The EPSA is mounted to the 
wall separately from the MKSU and 
connected to the 24 
VDC input on the 
MTOU PCB. 
Faults in the STRATA VI are 
repaired by replacing 
any faulty 
component (i.e., printed circuit board, 
sub-assembly, station set, etc.) and 
returning it to the manufacturer for 
repair-  
						

							This section contains brief 
descriptions of the STRATA VI features 
listed earlier in Tables B and C and 
some associated operating instructions, 
Detailed operating instruct 
found in the STRATA VI 
or Operating Instructions. 
All Call Voice Page-dialing a one 
digit access code permits a station 
user to page via all EKT speakers 
simultaneously. The system can 
also be programmed to include the 
External Page feature in an All 
Call Page. 
Alternate Point Answer-an inter- 
com call can be answered from any 
station. 
Automatic DialingSystem-this stan- 
dard feature allows 24 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 access code. 
Automatic Hold Recall-a CO line 
placed on hold by any station will 
remind that station after a pro- 
grammable period of time. 
Automatic Privacy With Release-- 
privacy is automatic on all con- 
net tions. Operation of the CONF 
key allows another station to enter 
the conversation. 
Automatic Release From Rold-the 
system automatically releases held 
CO lines if a disconnect signal is 
received from the central office. Background Music With Station Con- 
trol-music from the music-on-hold 
source can, at the station user’s 
option, be heard via the EKT 
speaker. The same music may also 
be broadcast via the external page 
interface if an external speaker is 
installed. 
Busy Override-after dialing a busy 
station and receiving a busy tone, 
the caller can dial a “2” and cause 
a tone burst to be sounded via the 
called El
						

							The timing of 
the flash can be 
programmed 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 Assign- 
ment-a programmable ring or no 
ring option is provided for each 
line selectively by each station. 
Each line may be programmed to 
ring a maximum of eight stations. 
Message Waiting-the operator can 
indicate a message is waiting for 
any station with 
the Message 
Waiting/Flash LED of that station. 
Handset must be off-hook for a 
station to cancel the MW/FL LED. 
Also see Flash Key. 
Multiple Simultaneous Handsfree 
Intercom Path-both intercom lines 
are able to carry handsfree con- 
versations simultaneously. 
Music-on-hold Interface-an inter- 
face is included for a customer- 
provided music source, 
CO lines 
placed on hold will be connected 
to this source. In addition, this 
music may also be broadcast from 
EKT speakers 
and external page 
when the background music options 
are selected. 
- Night Ringing Over External Page- 
as a programmable option, while 
the night mode is active, a sys- 
tem-generated 
ring tone will be 
transmitted via the external page 
whenever any line rings. 
Night Transfer of Ringing-CO lines 
can be programmed to ring dif- 
ferent stations while in the **Day*’ 
or in the “Night” mode, 
If this 
feature is to be used, the DND (Do 
Not Disturb) key on Ext. 10 is 
reassigned to the 
function and 
is then used to select the Day or 
Night mode. Non-blocking Dialing-dialing is per- 
mitted on all CO and INT lines 
simultaneously. 
Outgoing Call Restriction-any sta- 
tion can be selectively restricted 
from originating calls on any or all 
CO lines, 
However, the station 
will still receive calls on the res- 
t ric ted line(s), 
PBX Compatible-~TRA’rA VI fea- 
tures such as Toll Restriction and 
Automatic Dialing, are compatible 
with 
Private CO Lines-restrictions may 
be programmed into the system so 
that selected CO line(s) may ap- 
pear 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 when- 
ever the station user selects an 
outgoing line and presses the (#> 
key. 
System Programming-live 
system 
programming 
is accomplished by 
placing the system in the special 
programming mode and inputting 
data via Ext. 17. 
Toll 
Restriction-selectively 
pro- 
grammed on a per-station, per-line 
basis. 
The STRATA VI performs 
Toll Restriction by rejecting the 
numbers W and ‘*l** as the first or 
second digit and limiting the total 
number of digits dialed to seven or 
eight. 
Voice or Tone Signalling-a pro- 
grammable system feature that op- 
tionally 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 an extra digit following the 
extension number.  
						

							Do Not Disturb-this feature is 
activated .and deactivated by al- 
ternate depressions of the DND 
key. A station calling a station 
that is in the DND mode will 
receive a fast busy tone. 
Executive Override of Privacy-a 
station that is programmed for this 
feature will override the automatic 
privacy feature and is able to 
enter any existing conversation. A 
warning tone, however, is inserted 
before the overriding station is 
actually connected. A maximum of 
two stations can be programmed 
for Executive Override. 
Handsfree Talk-back-all EKTs are 
equipped for handsfree talk-back on 
voice-announced intercom calls as a 
standard feature. 
I-called Illumination-a distinctive 
flash appears on the Intercom LED 
at the EKT that is actually being 
called. ,411 other EKTs see the 
normal incoming call flash rate. 
I-hold Illumination-the EKT user is 
given a distinctive LED flash to 
indicate a line actually placed on 
hold at that EKT. All other 
stations see a normal hold flash. 
I-use Illumination-a distinctive 
flash rate shows the line presently 
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 modu- 
lar handset and line cords. 
Mute Key-all EKTs have a MUTE 
key that may be used to cut off 
the microphone when the speaker- 
phone is in use, thereby permitting 
a private local conversation. On-hook Dialing-STKATA VI lets 
YOU dial your calls with the 
handset still on-hook. 
Call pro- 
gress can be heard via the 
telephone speaker; no need to pick 
up the handset until your party 
answers. 
Push Button Dialing-all STRATA 
VI EKTs are equipped with push 
button dial pads. 
Ringing 
Line Preference-a line 
ringing at a station can 
be 
answered by merely lifting the 
handset. The ringing line will be 
autoinatically selected without the 
station user pushing a button. 
Speakerphone-all EKTs are fully 
functional speakerphones. 
Wall Mounting-the STRATA VI 
EKT is easily converted for wall 
mounting with an optional handset 
hanger kit* 
Automatic Dialing-Station-adding a 
CRDU PCB to the MCCU increases 
the STRATA VI automatic dialing 
capabilities. 
This feature encom- 
passes a 4Gnumber system list 
(increased from 24 numbers) and a 
private 40-number station list for 
each station. 
Busy Lamp Field-indicates which 
stations are in use. 
Relay Service-when the optional 
relays are equipped on the IMTOU 
PCB, 
the following signals are 
provided for external equipment. 
External Page-the 
relay is 
activated whenever the external 
page circuit is accessed. A 
‘:make” contact is provided for 
control of background music.  
						

							Night Transfer-the relay oper- 
ates (interrupted at the ringing 
rate) when the system is in the 
night mode and an incoming call 
appears. A “make” contact is 
provided to 
control a high 
power relay and loud ringing 
device. 
System Battery Back-up-an option- 
al PCB can be plugged into the 
STRA’T.4 VI EPSA to provide auto- matic switching to standby battery 
power. During normal power con- 
ditions the batteries are kept fully 
charged by the EPSA. 
20-key EXT-an optional executive 
unit provides, via ten additional 
feature keys, auto-dial access, 
seven one-but ton au to-dial tele- 
phone numbers, auto-redial, and a 
pause key.  
						

							TABLE OF CONTENTS e a + e a a a e a . . o e . ~ - 
ILLUSTR.4TIO-N LIST. o . e e 0 s v s a e s . ~ . ~ - - 
GENERAL e a e n a a a . s e e e e o a . , e ~ ~ 
PACKING. 9 . . e o . o . o e a . e ~ . ~ * . . 
MKSU LOCATION REQUIREMENTS 
POWER REQUIREMENTS o . e e a* : : : : : : : : : 
VENTILATION REQUIREMENTS 
ENVIKONiVfENTAL FACTORS .‘*I : : : : : : : : : 
CABLING CONSIDERATIONS 
MKSU MOUNTING e . * o . b *e ’ : : : : : : : : : : 
MKSU TABLE MOUN’I’ING. , e s . e e ~ . ~ I ~ * 
MKSU WALL MOUNTING s e a . 0 a e o . s o , ~ 
MTOU PCB OPTIONS . . . a . e (1 e . e . ~ ~ ~ . 
PRINTED CIRCUIT BOARDS e a e e . . e 0 . e e s e 
MTOU PCB INSTALLATION m e e s . . a e . e ~ ~ 
POWER CONNECTIONS. . a . . a a o . a e . o e 
PCB INSTALLATION. q 0 o 0 . s ~ ~ ~ ~ ~ ~ f ~ 
CABLE CONNECTIONS o . o e e . e e e e e 9 a a s . a . 
MDF CONFIGURATION 0 a e a e o o e e e e 0 m 9 q e 
STATION CABLE CONNECTIONS e o Q e . 0 0 4 Q Q 
INTERCO!VI CODE ASSIGNMENTS 
CO LINE CONNECTION e . o .s s e : : : : : : : : : : 
ELECTRONIC KEY TELEPHONE a a a a e 0 a v o e . . . 
GENERAL e o e e e . a. . a. a . e Q 0 0 . a . o 0 . 
EKT WALL MOUNTING e a a 9 e e o . e o o m e . . o 
CONVERTING THE EKT 
SYSTEM POWER-UP INITIGLI’ZE ’ ‘~*.e~o.*eoe’. : : : : : : 
SYSTEM TEST PROCEDURES e q e e . e . . . e . . e e 
MISC. EQUIPtMENT CONNECTION 0 * . 0 * . 
WIRING CONNECTION . o a . ~‘~‘.“.‘~~m*. . q e a . . 
MUSIC-ON-HOLD/BGNT SOURCE . s s e a o . e . B . e 
MOH VOLU’VIE C9NTROL . s e . . . 0 . a o o e s . q 
EXTERd4L 
PAGING CONNEC IION s . . . a . n e . a 
DIRECT EXTERNAL SPEAKEK CONNE(:T’ION s . . . . 
EXTERNAL AMPLIFIER CONNECTION . . . . . . . 15 
TALK-BACK AMPLIFIER q . . a . . . o e . a Q . . e 
BACKGROUND ;\ilUSIC (BGM) m . e e a a a s e . 0 . . 
VOLUME SETTING SEQUENCE * 0 e a 
EXTERNAL NIGHT BELL q a a : : : : : : : : . s . a  
						

							,_ 
1 
2 
3 
4 
r 
ii 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
lb 
19 
20 
21 
22 
23 
24 
25 
26 
27 NICCIJ and CRDU PCB . a . 0 . . . . . Q 9 . e o . e 
;VlKSU c&all Mounting - o Q a m . e o a D a ~ , ~ ~ . . 
iVlKSU Nail Mounting (Side View) e , Q s ~ ~ . ~ . . 
2 
IVITOU Relay Layout n 0 . . a e 0 e . e s + . o a e . 
IVITOU Relay Straps q - q a e . e D . e m . . e . . - . 
i(ey Service UiGt (;i/rKSU) Internal Vievv a 0 . a . a 
2/11(SU Power Connection s D , 5 . m e e e . a . a . s 
il’iountingCRT)UoniVlCCU .~I~~~~..*~... 
MCCU/CKDU Battery Connections B e , . , e a o Q e 5 
System Block Diagram m . a e . a B a . . . e o . . q e 
i\/lKSIJ Cable Connections . . . . e . . . . . . - . . . 
YiKSU Cable Routing . . . . e a 9 . . + c . . . e . . 
r\llDF 13lock 4 Connection Diagram . a . Q . . 0 . . . 
XIDF Block B Connection Diagram . 0 . e a . . (I . . 
Station Block Wiring Diagram a a (d a . n . . - 0 . q B 
;A!IKSU Cable Connections . . e e e m . . . s o - . a a 
Electronic Key Telephone (EKT) . Q . q 0 . . . . . . 
2%Key EKT . . a . . . a a . . a + e s s f . q * a . + - 1 
Mounting EKT Base - . a a 0 a 0 . e . e . q . a . - q 
EKT Wiring . - . e - )1 - a - e - e Q s e e * - - . Q . e 
Mounting Handset Ranger e . e - e . o . + e n . e 
NlCCU/CRDU Battery Connections a . . . m . e . ,, 
MTOU Power Switch 
EKT e m . 0 e m 9 n e .’ : e” : .* .’ : B- a’ e* e’ ‘e ‘0 ‘a ‘. : : 
MTOU Wiring Connections 0 e e e . . e s . a a . e . 
IVITOU .Relay Connections . e . a e e . . ~ . n e a o e 
System Volume Controls 0 - s . . . . o ~ ~ . o 0 . ~ ~  
						

							This set tion describes the 
installation procedures necessary to 
ensure proper operation of the STRATA 
VI system. 
When a STRATA VI system is 
received, examine all packages and 
make careful 
note of 
any visible 
damage. 
If any damage is found, bring 
it to the attention of the delivery 
carrier and make the proper claims. 
Check the STRATA VI system 
against the purchase order and packing 
slip. If it is determined that equipment 
is missing, contact your supplier 
immediately. 
After unpacking (before the 
installation is started), inspect all 
equipment for damage. If any damage 
is detected, 
contact your 
supplier 
immediately. 
When packing or storing the 
CRDU and/or MCCU, ensure the 
following: 
use plastic or any type of 
conductive material for packing 
either the CRDU or the NICCU. 
plain paper 0 
When installing or removing 
DU PCB from the MCCU PCB, 
touch the back side (soldered 
side) of either PCB. Hold the PCB by 
the edge whenever handling it. 
Whenever storing or shipping the MCCU and/or CRDU, always ensure 
that the battery strap is in the 
position (Figure l>, 
SW3 BATTERY STRAP 
 
The STRATA VI MKSU 
requires 24 VDC. This is provided by 
the EPSA, which in turn requires power 
from a grounded 115 VAC outlet. The 
outlet should be separately fused and 
rated at 15 amps. 
The 54-inch cord provided to 
connect the EPSA to the MKSU 
dictates the relative location of the 
EPSA. The EPSA is also equipped with 
a lo-ft. AC power cord. 
Sufficient ventilation should