Toshiba Strata VI User manual

TOSHIBA SYSTEM PRACTICES
ELECTRONIC KEY TELEPHONE SYSTEM SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
Strata VI
INSTALLATION INSTRUCTIONS

Strata VI
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
INSTALLATION INSTRUCTIONS
TABLE OF CONTENTS
PARAGRAPH
PAGE
01
02
03
03.01
03.10
03.20
03.30
04
04.10
04.20
05
06
06.10
06.20
06.30
07
07.01
07.10
07.20
07.30
08
08.01
08.10
08.20
09
10
10.01
10.10
11
11.01
11.10
11.20
11.30
11.40
11.50
11.60
11.70
11.80
11.90
TABLE OF CONTENTS
ILLUSTRATION LIST
GENERAL . . . . .
PACKING . . . . .
MKSU LOCATION REQUIREMENTS
POWER REQUIREMENTS
VENTILATION REQUIREMENTS
ENVIRONMENTAL FACTORS
CABLING CONSIDERATIONS
MKSU MOUNTING .....
t\1KSU TABLE MOUNTING
MKSU WALL MOUNTING
MTOU PCB OPTIONS
PRINTED
CIRCUIT BOARDS
MTOU PCB INSTALLATION
POWER CONNECTIONS
PCB INSTALLATION
CABLE CONNECTIONS
MDF CONFIGURATION
STATION
CABLE CONNECTIONS
INTERCOM CODE ASSIGNMENTS
CO LINE CONNECTION
ELECTRONIC KEY TELEPHONE
GENERAL . . . . . .
EKT WALL MOUNTING
CONVERTING THE EKT
SYSTEM POWER-UP INITIALIZE
SYST&W TEST PROCEDURES
EKT FUNCTION CHECK
FEATURE CHECK . . . . .
MISC. EQUIPMENT CONNECTION
WIRING CONNECTION
MUSIC-ON-HOLD/BGM SOURCE
MOH VOLUME CONTROL ...
EXTERNAL PAGING CONNECTION
DIRECT EXTERNAL SPEAKER CONNECTION
EXTERNAL AMPLIFIER CONNECTION
TALK-BACK ~WPLIFIER
BACKGROUND MUSIC (BGM)
VOLUME SETTING SEQUENCE
NIGHT RELAY SERVICE ..
-i -
i
i i
1
1
1
1
2
2
2
2
2
2
3
4
4
5
7
7
7
9
9
12
12
12
14
14
15
16
16
18
18
18
18
19
19
19
19
20
20
21
22

FIGURE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Strata VI
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
INSTALLATION INSTRUCTIONS
ILLUSTRATION LIST
TITLE PAGE
MCCU
and
CRDU PCB
. . . . 1
MKSU Wa I l Mounting . . . . . 2
MKSU Wa 11 Mounting (Side
View)
3
MTOU Relay Layout
3
MTOU Relay Straps
. . . . . . 4
Impedance Sw i t ch
( SW2)
. . . 4
Key Service Uni t (MKSU) Internal View
5
MKSU Power Connection . . . 5
Mounting CRDU on MCCU
. . . . 7
J.VK::CU/CRDU
Battery Connections 7
System Block Diagram . 8
MKSU Cable Connections . . . . . . . 9
MKSU Cable Routing
. . . . . 9
MDF Block
A Connection Diagram
.
10
MDF Block B Connection Diagram
11
CO/PBX Modular Wiring
Diagram 12
MKSU Cable
Clamps . . . .
12
Electronic Key Telephone
(EKT) . . .
13
Busy
Lamp Field
(BLF)
EKT 13
20-Key Executive EKT 13
Removing EKT Base 14
Mounting EKT Base . . .
14
EKT Wiring . . . 14
Mounting Handset Hanger
15
MCCU/CRDU Battery Connections
15
MTOU Control
Switches
16
EKT . . . . . . . . . .
17
MTOU
Wiring Connections
19
MTOU Relay Connections
19
External
Amplifier
Connections
20
System Volume
Controls
. . .
21
- ii -

01 GENERAL
01.01 This section describes the in-
stallation procedures necessary to en-
sure proper operation of the STRATA
VI system.
02 PACKING
02.01 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 car-
rier and make the proper claims.
02.02 Check the STRATA VI system
against the purchase order and packing
slip. If it is determined that any car-
tons are missing, contact your deli very
carrier immediately. If it is determined
that any equipment within a carton is
missing, contact your Toshiba supplier
immediately.
02.03 After unpacking (before in-
stallation is started), inspect all equip-
ment for damage. If any damage is
detected, contact your delivery carrier
immediately. If possible, retain all
original packing material.
02.04 When handling (installing, re-
moving, examining, etc.) a printed cir-
cuit board, do not touch the back
(soldered) side
or the edge connector.
Always hold a PCB by its edge.
02.05 When packing or storing the
CRDU and/or MCCU, ensure the fol-
lowing:
• Do not use plastic or any type of
conductive material for packing
either the CRDU or the MCCU.
• Use plain paper.
NOTE:
Conductive packing material
may cause the internal back-
up battery to discharge and
damage the system.
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER
1982
02.06 When.ever storing or shipping
the MCCU and/or CRDU, always ensure
that the battery strap is in the OFF
position (Figure 1).
SW! BATTERY STRAP
FIGURE l
NOTE:
Always make sure the battery
strap(s) on the MCCU and/or
CRDU is in the "ON" position
just prior to installation.
If not, the SET LED on the
MCCU will not operate.
03 MKSU LOCATION REQUIREMENTS
03.01 Power Requirements
03.02 The STRATA VI MKSU re-
quires 24 VDC. This is provided by the
power supply, which in turn requires
power from a grounded 115VAC outlet.
The outlet should be separately fused
and
rated at 15 amps.
03.03 Two power supplies
are
available:
• MPSA-200 provides sufficient power
for 16 stations, of which a maxi-
mum of three telephones may be
BLF EKTs.
-1 -

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
• The EPSA-104 is necessary if four
or more BLF EKTs are required
within a system. Up to 16 BLF
EKTs may
be installed with an
EPSA-104 power supply.
03.04 The 54-inch cord provided to
connect the power supply to the MKSU
dictates the relative location of the
power supply. The power supply is also
equipped with a 10-ft. AC power cord.
03.05 Optional battery back-up units
(PBBU) are available for both power
supplies. The PBBU is a printed circuit
board that mounts inside the power
supply housing. The recommended bat-
tery pack, which is customer supplied,
consists of two 12VDC batteries (main-
tenance-free automobile-type is recom-
mended). With the optional battery
back-up assembly installed, all functions
of the STRATA VI system will operate
for a period of time (which is in direct
ratio with the type and size of bat-
teries selected) after a loss of normal
electrical power. No calls will be dis-
connected during switch-over to bat-
tery power.
03.10 Ventilation Requirements
03.11 Sufficient ventilation should
exist to allow the dissipation of heat
generated by the power supply and
MKSU.
03.20
Environmental Factors
03.21 Humidity at the MKSU loca-
tion should be within 20 "'--' 80 % (without
condensation), and the temperature
should be relatively constant within a
range of O""'-' 50° C. Exposure to dust
and airborne chemicals should also be
taken into consideration.
03.30 Cabling Considerations
03.31 The MKSU must be located so
that all stations are within 1000 cable
feet of it. Acceptable cable is 22 or
24 A WG inside telephone station cable,
jacketed but not shielded, having two
or more wire pairs.
04 MKSU MOUNTING
04.01 The
MKSU is designed for
either table or wall mounting, but
comes from the factory configured for
table mounting. For wall mounting
instructions, ref er to Paragraph 04.20.
04.10 Table Mounting the MKSU
04.11
Since the MKSU is already
configured for table mounting, the only
requirement is to choose a suitable loc-
ation and proceed to Section 100-006-
250, MPSA-200 Installation or Section
100-006-255, EPSA-104 Installation.
04.20 Wall Mounting the MKSU
04.21
Prepare the MKSU for wall
mounting by reversing the back cover
to expose the two top mounting holes.
Proceed as follows:
•
Remove and save the five screws
securing the back cover.
• Rotate the back cover 180°, and
realign it so that the flanges with
the two mounting holes project
above the top of the MKSU, as
shown in Figure 2.
FIGURE 2
- 2 -

/
• Reinstall the back cover, and se-
cure it with the five screws that
were removed earlier.
04.22 Secure the MKSU, as shown
in Figures 2 and 3, with fasteners
through the upper two holes and the
single lower hole in the backplate.
The fasteners should be either 1/4-inch
molly screws, toggle bolts·, or lag
screws, depending upon the type of
wall surface being used.
WALL
CABLE
FIGURE 3
04.23 Prior to installing any printed
circuit boards, install the power supply
per instructions in Section 100-006-250,
MPSA-200
Installation or Section
100-006-255, EPSA-104 Installation.
05 MTOU PCB OPTIONS
05.01 The MTOU houses several
options that must be considered before
it is installed in the MKSU, they are:
• Background Music Relay Service--
the optional BR relay (Kl socket,
Figure 4), if installed, provides a
dry
contact at the BR terminals on
the front of the MTOU to control
cut-off of BGM during an external
page. The relay operates whenever
an external page occurs.
-3 -
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
• Night Relay Service-the optional
NR relay (K 2 socket), if installed,
provides a dry contact at the NR
terminals on the front of the
MTOU. The W3 strap option (Fig-
ure 4) allows the relay to function
in one of two modes.
a)
b)
FIGURE 4
Answering Machine Control-
if the W3 strap is not cut,
the relay is operated contin-
uously when the system is in
night service. This mode is
in
tended for indirect control
of an answering machine.
Night Bell
Control-if the W3
strap is cut, the relay pulses
at a 1-sec. on, 3-sec. off
rate whenever the system is
in night transfer mode and an
incoming
call is ringing the
system. This mode is in-
tended to be used for indirect
control of an external night
bell.
•
External Page Impedance Selec-
tion-the external page output
appears at the terminals labeled
8/600 on the front of the MTOU.
The
output impedance can be se-
lected to be either 8 ohms or 600
ohms. If 8 ohms
is selected, the
output will be via a 3-watt

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
amplifier on the MTOU, and the
voice path will be one way. If
600 ohms is selected, an external
PA amplifier or talk-back amplifier
is required and the internal voice
path will be two way.
05.02 To equip either of the two
relay service functions; obtain the op-
tional relay from your Toshiba supplier
and install it in the proper location on
the !V!TOU, per Figure 5.
FIGURE 5
05.03 External page impedance is
selected with the SW 2 switch located
adjacent to the relay sockets on the
!V!TOU PCB (Figure 6). Decide if 8- or
600-ohm
impedance is required, then
make the selection by positioning the
SW2 switch to n3n or
11
600", whichever
is required. Figure 6 shows the switch
in the 8-ohm position.
FIGURE 6
06 PRINTED
CIRCUIT BOARDS
06.01 A maximum
of seven PCBs
They
can be installed in the MKSU.
are:
NOTE:
For proper static electri-
city protection, install the
PCBs in the Following se-
quence.
• MTOU (Tone Unit)-one per system.
• CRDU (Repertory Dial Unit)--one
per system, to be installed on the
MCCU PCB when the Automatic
Dialing-Station option is required.
• MCCU (Central Control Unit)--one
per system.
• MSTU (Station Interface Unit)-
install one for each group of eight
stations. System maximum is two
(16 stations).
• MCOU (Central Office Unit)-in-
stall one for each group of three
CO/PBX lines. System maximum is
two (six lines). Two types of
MCOU are available.
a) MF-to be used when DTMF
outpulsing is required.
b)
06.10
06.11
vi des
24VDC
supply.
first.
DP-to be used when rotary
dial outpulsing is required.
MTOU PCB Installation
The MTOU front panel pro-
the connection point for the
input from the external power
Therefore, it must be installed
06.12 Install the MTOU PCB in the
MKSU as shown in Figure 7.
- 4 -

0
0 MCOU
-Mf2
MTOU'l
[:
0
01
QEX.SP
02
02
QMOH
0
OJ
OJ
QBG"
0
C]n<T
~ HV
8'1100 °
BR 0
00
~R EKT K:'IU
0 0
~OK 0 0
LJ-~-LJ~ .. m-~u~-'°..r-io
00 0
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
06.22 Disconnnect the power supply
from
the 115VAC outlet. Remove the
plastic protective cover from the power
terminal strip on the MTOU, and, with
the supplied cord, connect the power
supply
to the terminal strip and the
MKSU frame ground (see Figure 8) in
the following manner.
White:
Black:
Green:
"24V"
"OV"
"FG" on
MKSU
"E" on power supply
Make
sure the wires are connected to
matching terminals at each end.
co 1,2,3 10-17 Ext 18-25
FIGURE 7
Secure the power cord to the MKSU
with the plastic cable clamp that is
provided.
06.20 Power Connection
06.21 Plug the power supply into a
115
VAC outlet and check its output
voltage to be sure it is between 23.2
and 28.2VDC. If the voltage is not
within these limits, replace the power
supply before proceeding.
Q5ET
QMOH
0
Ow
Q!!GM
0
> ©
24V
DHT
, 0
8/600
J 0
80
00
""
E•T •SU
J GREEN
0 0
MOH
- -,,~
J
MCCU
"'TOU GREEN
CABLE CLAMP
06.23 Use the additional green wire
packed with the system to bond the "E"
and
"OV" terminals on the power supply
(see
Figure 8).
EPSA-104 POW ER SUPPLY
GREEN
JUMPER
FIGURE 8
- 5 -

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
06.24 For protection against static
electricity, a green jumper wire is
attached to the
11
FG
11
screw (refer to
Figure 8). This wire must be connec-
ted to the
11
0V
11
terminal on the MTOU
power strip. Reinstall the plastic pro-
tective cover on the power strip at
this time.
06.25
The Toshiba STRATA VI elec-
tronic key telephone system requires a
solid earth ground on the
11
FG
11
terminal
on the MKSU tray. Failure to provide
such a ground may lead to confusing
trouble symptoms in the system and, in
extreme cases, circuit board failure.
e In most installations, within the
continental United States, the
ground provided by the
11
third wire
ground
11
at the commercial power
outlet will be satisfactory for all
STRATA VI requirements. llow-
ever, in a small percentage of in-
stallations this ground may be
installed incorrectly. Therefore,
prior to installing a STRATA VI
system, the third wire ground must
be tested for continuity by either
measuring the resistance between
the 3rd prong terminal (earth
ground) and a metal cold water
pipe, or by using 11 commercially
available emth f~round indicntor.
lf neither of these procedures are
possible, then the test procedures
outlined in Parngrnph 06.26 should
be performed.
CAUTION:
Hazardous voltage is exposed
during the following test.
Use great care when working
with AC powerline voltage.
06.26 Test Procedure
1. Obtain a suitable voltmeter and set
it for a possible reading of up to
250VAC.
2. Connect the meter probes between
- 6 -
the two main AC voltage points on
the wall outlet. The reading ob-
tained should be 90"-'l30VAC.
3. Move one of the meter probes to
the 3rd prong terminal (GND).
Either the same reading or a
reading of 0 volts should be ob-
tained.
4. If the reading is OV, leave one
probe on the GND terminal and
move the other probe to the 2nd
voltage terminal. If a reading of
OV is obtained on both voltage
terminals, the outlet is not pro-
perly grounded. Omit Steps 5/'./ 7,
and proceed directly to Step 8.
5. If a
reading of OV on one terminal
and a reading of 90 ~ 130VAC on
the other terminal is not obtained,
the outlet is not properly groun-
ded. Omit Steps 6 &: 7, and pro-
ceed directly to Step 8.
6.
If a reading of OV on one terminal
and a reading of 90/\/130VAC on
the other terminal is obtained, re-
move both probes from the outlet.
7. Set the meter on the noHMS/Rxir'
scale, place one probe on the G ND
terminal and the other probe on
the terminal which gave a reading
of OV. A reading of less than one
ohm should be obtained. If a
reading of less the one ohm is not
obtained, the outlet is not ade-
quately grounded.
8. If the above tests show that the
outlet is not properly grounded,
that condition should be corrected
(per Article 250 of the National
Electrical Code) by a qualified
electrician before the STRATA VI
system is conn(~cted.
06.27 Ensure that the power switch
on the MTOU is OFF, then plug the
power supply into the 115VAC outlet

and measure the voltage at the MTOU
input terminals. Correct any problems
before proceeding.
06.30 PCB Installation
06.31 Mount the CRDU on the
MCCU if required (see Figure 9).
P2~ ·- rn f11 rTI ®
P3 ~ rn rn ~ m ~ ~ ~ ii
mm mma
rn rnrn rn ~
CRDU
Pl .
FIGURE 9
06.32 Connect the memory back-up
battery on the MCCU (and on the
CRDU if the system is so equipped).
Ref er to Figure 10, locate the SW 1
SW 3 Battery Strap
CRDU
SWl Battery Strap
FIGURE 10
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
battery strap on tl1e CH.DU, and
SW 3 battery strap on the MCCU;
plugs are shown in the off or
connected position. To connect
battery, remove and reinstall
strapping plugs so that they bridge
center pin with the pin labeled ON.
the
the
dis-
each
the
the
06.33 Install the MCCU in the cor-
rect MKSU position (Figure 7).
06.34 Follow the position arrange-.
ment in Figure 7, and install the re-
quired MSTU PCB(s).
• #1 MSTU serves extensions 10..-v-17.
• #2 MSTU
serves extensions 18 -'V"25.
06.35 Select the proper type of
MCOU PCB (MF or DP) and install the
required number in the position(s) shown
in Figure 7.
•
#1 MCOU serves CO lines 1/\..-3.
• #2
MCOU serves CO lines 4...-v6.
07 CABLE CONNECTIONS
07.01 Main Distribution Frame (MDF)
Configuration
07.02 Two 66MI-50 split connection
blocks (Figure 11) are recommended as
the fully-equipped STRATA VI main dis-
tribution frame (MDF).
07 .03 A 25-pair male-amphenol-
ended cable is connected directly to
the front of each MSTU PCB and fas-
tened with the metal bracket that is
provided (Figure 12).
07 .04 Secure the cable(s) to the
bottom of the MKSU shelf (Figure 12)
using the plastic cable clamp(s) pro-
vided. Route the cable(s) under the
MKSU and toward the rear, as shown in
Figure 13.
07.05
Route the cable from #1
-7 -

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
TO CO/PBX
RJ-25C
2-PAIR
1
11=~~'~
1 [J Q mcri
:cc .. ~ ~.2 CT] [I QI
c ~i "\~,-·!·:"· CTI ret1 el
11 i:;];!IJG]
p-~.;r.;;.r
---:='~
EKT
MKSU
3-WIRE
CABLE
25-PAlR CABLE
MDF:f.H
MDF:f2
10-17
18-25
2-PAIR
EKT
FIGURE 11
- 8 -
GREEN
JUMPER
WIRE
POWER
SUPPLY
FM
TUNER
EXTERNAL
SPEAKER
115VAC
2-PAIR
EKT

MSTU (Ext. 10 17) to Block 1 and the
cable from #2 MSTU (Ext. 18 25) to
Block 2.
'/
v/
Screws Cable Clamps
FIGURE 12
07 .06 Use the industry-standard
color code sequence and terminate the
cables from the MSTU PCBs on the
MDF blocks as shown in Figures 14 and
15. (Use one side of each block for
each cable.)
07.10
07.11
pair
WALL
CABLE
FIGURE 13
Station Cable Connections
Terminate
station cables
the individual
consecutively
2-
on
-9 -
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
each MDF block; attach them to the
side opposite the iV1STU cable. Use
bridging clips to connect the MSTU
cable pairs to the station cable pairs.
07 .12 The cables used for station
wiring should be industry-standard quad
or twisted pair.
07 .13 The overall length of the
cable run must not exceed 1000 ft. for
24 AWG wire.
WARNING:
When installing station ca-
ble, do not run parallel to
and within 3 ft. of an AC
power line; any power lines
should be crossed at right
angles (90°) only.
07.14 At the station locations, ter-
minate the station cable in a conven-
tional 4- or 6-conductor modular station
connector to accommodate the modular
line
cord from the EK T. The standard
modular EKT cord length is 7 ft., while
the maximum allowed length is 25 ft.
07 .15 Figures 14 and 15 show the
EKT wiring arrangement.
07.16 The various manufacturers of
modular station blocks have employed
different color codes to indicate the
sequence of pairs in their blocks.
However,
the color code most commonly
used
is shown in Figures 14 and 15.
Verify the configuration of your modu-
lar blocks before connecting the station
cables.
07 .20 Intercom Code Assignment
07 .21 Intercom codes are assigned
permanently to specific MSTU cable ap-
pearances in STRATA VI. Make sure
the station cables are connected to the
proper terminals (Figures 14 and 15).

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
TO #1 MSTU
2-PAIR JACKETED
STATION CABLE
W-BL ..-~~~------ GN
BL·W :-r--=~Rf-------------------------
WO BK
OW y
W-GN
GN·W
W·BR
BR·W
W-5
S·W
R·OL
BL·R
A·O
O·R
R·GN
GN·R
A·BA
BR·A
R·S
S·A
BK BL
BL-BK
BK·O
0-BK
BK·GN
GN·BK
BK·S
S-BK
Y·BL
BL·Y
y.o
O·Y
Y·GN
GN·Y
Y·BA
BR·Y
y.s
5.y
V·BL
BL-V
V·O
O·V
V-GN
GN·V
V·BR
BA·V
v.s
S·V
.--=-'--_i __ Ext. 11
r-::-t--• -- J
1
r:-:--.,__ ____ _. Ext. 12
J
_,----;-;-i._ __ .1
- Ext. 13
-0 _J
- '' l
-0
- QD Ext. 14
- L..:.::'.....r---i>-J
= 1
!!liiW 0 Ext. 15
-J
MW0 1
-0
lll'lli!llll Ext. 16
-J
= QD l
_. Ext. 17
-J
DD l
CJD
CJD
CJD
BRIDGING
CLIPS
CJD
CJD
CJD
CJD
CJD
CJD
CJD G---
CJD
DD
CJD
DD
CJD
CJD
CJD
66Ml50 SPLIT BLOCK
FIGURE 14
- 10 -
MODULAR STATION BLOCK
T2
I I I I I I
5 4 3 2
MODULAR ( )
C0 RD -+--+---+-+-"
'
EKT
y
R2
......
Ext. 10
--

TO #2 MSTU
W-BL
qL·W
w.o
o.w
W-GN
GN·W
W·BR
BR·W
W·S
S-W
R·BL -
BL·R
-
R·O -
O·R -
R·GN -
GN·R -
-
R·BR
BR·R -
A·S -
S·R -
-
BK-BL -
BL·BK
BK·O -
0-BK
-
-
BK·GN
GN·BK
-
BK-BR -
BR-BK -
BK·S -
-
S-BK -
Y·BL -
BL·Y
y.o
O·Y
Y-GN
GN·Y
Y-BR
BA·Y
y.5
5.y
V-BL
BL·V
V·O
O·V
V-GN
GN·V
V-BR
BR·V
V·S
S·V
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
2-PAIR JACKETED
STATION CABLE
GN
R
BK
y
l
~~ • _Ext. 19
J
l
Ext. 20
~-----'- J
l
Ext. 21
J
17 l
Ext. 22
_J
l
Ext. 23
J
l
Ext. 24
J
l
Ext. 25
J
BRIDGING
CLIPS
NOT USED
MODULAR STATION BLOCK
BK
T2
MODULAR
CORD
I I I I I
5 4 3 2
EKT
y
R2
Ext. 18
66Ml50 SPLIT BLOCK
FIGURE 15
-11 -

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
NOTE:
White and blue (T3 & R3) are
not used for STRATA VI sta-
tion line connectors.
07 .30 CO Line Connection
07 .31 The CO/PBX lines are intro-
duced into the STRATA VI system via
6-wire modular line cords (no longer
than 25 ft.) connected directly to a
jack on the MCOU PCB. Each modular
cord contains three lines. The opposite
end of each cord then terminates
directly into an RJ-25C jack provided
by the telephone company (Figure 16).
TO
CO/PBX
w
t:C
z
st r~
u w
E-<
<C
0 w ...:i ::::i
.......
0.::
::r::
...:i
w w
...:i
3: co
0:::
v ~
co
:-- -- ---- --,- -,- -,-: 6-POSITION
I I PLUG
L-- - -- - ---- .J
T3 T2 Rl Tl R2 R3
' /
TO MCOU PCB
FIGURE 16
• #1 MCOU serves CO lines 1 ..-v3.
• #2 IVICOU serves CO lines 4 rv6.
07 .32 Secure the modular cords to
the MKSU shelf (Figure 17) using the ·
plastic cable clamps that are provided.
FIGURE 17
08 ELECTRONIC KEY TELEPHONE
INFORMATION
08.01
General
08.02 All STRATA VI EKTs may be
used as desk units or wall-mounted
telephones. Each one measures:
Width
Depth
Height
8.8 inches (224 mm)
9.1 inches (230 mm)
4.0 inches (102 mm)
and is equipped with 14 line and f ea-
ture keys in addition to its push-button
dial pad. Six of the keys are utilized
for central office/PBX lines, two for
intercom lines and the remaining six
keys are used for feature operation
(Figure 18).
08.03 Each EKT f ea tu res a modular
handset cord and is connected to the
system via a 4-conductor modular line
cord.
08.04 An optional Busy Lamp Field
(BLF) EKT (Figure 19) provides LED
indication on which stations are in use.
08.05
The 20-key EKT (Figure 20)
- 12 -

Modular Cord
Speaker Volume-Ring
Tone & Intercom Voice
Dial Pad
t
[J[ffi][]J
mm ffi1
~[]]ru]
GmGJ
FIGURE 18
FIGURE 19
-13 -
Key
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
Speaker Volume-Dial
Tone & Voice Level
Flash & Message
CJ1L Waiting Key
0
Do Not Disturb
f Key
CJ .......... _
Outside Line
Access Keys
FIGURE 20

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
has the same overall dimensions as the
standard EKT, and is installed in
exactly the same manner. See Program
5XX in Section 100-006-300, Program-
ming, for inputting information con-
cerning the 20-key. It is equipped with
10 additional feature keys-see Section
100-006-100, General Description, for
additional information.
08.10 EKT Wall Mounting
08.11 An optional handset hanger
kit is required to convert either type
of EKT for wall mounting. The EKT
may
be mounted on a wall or any other
flat, vertical surf ace to which the base
can be secured.
08.12 When selecting the mounting
site, consider the EKT weight and the
additional stresses to which the
mounting will be subjected.
08.13 Mounting screws or mollies,
appropriate for the surf ace on which
the telephone is to he secured, must be
provided by the installer.
08.14 Locking tabs secure the base
to the EKT. The direction in which
the base is attached to the EK T de-
termines whether it will be used as a
desk unit or wall unit (it is factory-
configured as a desk unit). Disengage
the locking tabs by pushing downward
on the base (Figure 21).
FIGURE 21
08.15 Refer to Figure 22, choose
which of the choices are appropriate
for the tail cord route, and then cut
them.
FIGURE 22
08.16 Secure the base to the de-
sired wall site. Use a spirit level and
make certain the top of the base is
level and that the deeper portion is
down.
08.17 Route the tail cord through
the holes in the base and secure the
EKT (Figure 23). Test the sturdiness
of the EKT mounting.
FIGURE 23
08.20 Converting the EKT
08.21
Refer to Figure 24, the op-
-14 -

tional handset hanger kit (available
from your Toshiba supplier) must be
used whenever the EKT is wall-mounted.
Handset
Hanger
Nurnber Card
Card Cover
FIGURE 24
08.22 Remove the card cover by in-
serting a paper clip in the hole at one
end. Bend
the cover up and remove it
and the number card.
08.23 Install the handset hanger
in to place and tighten the self-tapping
screws. Reinstall the number card and
card cover and connect the modular
plug
to the modular jack.
09 SYSTEM POWER-UP INITIALIZE
09.01 The STRATA VI has a list of
standard system data assignments stored
in ROM that can be entered at any
time
by performing the initialize
sequence outlined below. The system
must be initialized when it is first
installed or whenever the MCCU PCB
is
changed. This will allow the system
to be tested and any faults to be
corrected before time is spent on
programming.
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER
1982
NOTE:
Do not initialize if using a
pre-programmed, battery-pro-
tected HCCU.
09.02 Ref er to Figure 25 and verify
that the battery on the MCCU (and
CRDU, if equipped)
is connected to
ensure that data changes entered after
initialization will not be lost due to
power failure.
NOTE:
The SET LED will not func-
tion if the MCCU battery is
not connected.
Sl'.3 BATTERY STR,\P
SW! BATTERY STRAP
FIGURE 25
09.03 To initialize the system data
memory, ref er to Figure 26 and perform
the following steps:
a)
Place the power
switch on
the
MTOU
PCB
in
the
ON position.
b)
Depress
the
INT switch
on
the
MCCU, and hold it
in.
c) Depress
the
SET switch
and allow
it to lock.
-15 -

SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
0 "4COlJ
-Mrt
01
Ot
01
Oi O•
FIGURE 26
d) Depress and release the SET switch
again.
e) Release the INT switch.
f) Cycle the MTOU power switch OFF
and ON.
09.10 The Automatic Dialing memory
will conti:l.in
random numbers when the
system is powered up initially. To
clear the memory; therefore preventing
meaningless numbers from being dialed,
proceed as follows:
a) To
clear Automatic Dial-System
memory (24 numbers):
e Lock in the SET switch on the
MCCU-the MCCU LED and the
MW/FL LED on Ext. 17 will be
on.
e Operate the LS1'K.RJ key on Ext.
17-SPKR LED will be on
steadily.
c Dial 00 0 0 on the dial
pad-the SPKR LED will flash
continuously.
(') Operate the following keys:
0
0
aNlJl lCID &:IT:J ~-the
responding LEDs will
steadily.
cor-
light
e Operate the IHOLDI key-all Ext.
17 LEDs (except MW /FL) will
go
off.
• Release the SET switch on the
MCCU-the MCCU LED and the
MW/FL LED on Ext. 17 will go
off.
b) To clear the optional Automatic
Dial-Station memory:
e Lock in the SET switch on the
MCCU-the MCCU LED and the
MW /FL LED on Ext. 17 will go
on.
•
Operate the ISPKR I key on Ext.
17-the SPKR LED will be on
steadily.
• Dial 0 0 Won the dial pad-
SPKR LED will flash continu-
ously.
• Operate the following keys:
lffIT2 fCQ2l ~ ~the cor-
responding LEDs will light.
• Operate the IHOLDI key-all Ext.
17 LEDs (except MW /FL) will
go
off.
• Release the SET switch on the
lVlCCU-the MCCU LED and the
MW /FL LED on Ext. 17 will go
off.
09.11 If the appropriate preceeding
sequence fails, refer to Section 100-
006-500, Fault Finding Procedures, for
assistance in locating the fault.
10 SYSTEM TEST PROCEDURES
10.01 EKT Functional Check
10.02 Verify the basic system func-
- 16 -

tions and confirm the proper func-
tioning of the EKT itself. Refer to
Figure 27, and perform the following
test procedure at each station. Begin
with Ext. 10.
)1ra ....,.,.. -:ootlllOl.ll!
c:::J c::J CJ CJ
FIGURE 27
10.03
With handset on-hook:
•
Operate []!IT]]
key
INT 1 LED:
I-use
flash
SPKR LED: on
steady
Listen
for INT dial tone
via
EKT
speaker
•
Adjust
speaker volume
with the
volume
control on the
rear
right
side of
the EKT.
•
Operate INI2 key
INT 2 LED: I-use flash
SPKR LED: on steady
Listen for INT dial tone via
EKT speaker
• Operate ~ key
CO 1 LED:
I-use flash
SPKR LED: on steady
Listen for CO/PBX dial tone
via EKT speaker
• Dial any digit (2 - 9) on the dial
pad and dial tone will stop.
- 17 -
SECTION 100-006-200
INSTALLATION INSTRUCTIONS
DECEMBER 1982
e Operate [MW/FL I key
Listen for circuit break fol-
lowed by dial tone after ap-
proximately 2 seconds.
• Operate fCT[2l key
CO 1 LED:
I-use flash
SPKR LED: on steady
Listen for CO/PBX dial tone
via EKT speaker
NOTE:
If no CO /PBX facility is con-
nected to a CO key, dial
tone will not be heard but
the LED is still functional.
• Operate ICIT]l key
CO 3 LED:
I-use flash
SPKR LED: on steady
Listen for CO/PBX dial tone
via EKT speaker
• Operate ~ key
CO 4 LED:
I-use flash
SPK R LED: on steady
Listen for CO/PBX dial tone
via EKT speak er
• Operate ~ key
CO 5 LED:
I-use flash
SPKR LED: on steady
Listen for CO/PBX dial tone
via EKT speaker
• Operate ~ key
CO 6 LED:
I-use flash
SPK R LED: on
steady
Listen for CO/PBX dial tone
via EKT speaker
• Operate ISPKR I key
SPKR LED: off
EKT speaker: off
• Operate ON:Q key
DNO LEO: on
•
Operate c:ND key
DND LED: off