Toshiba Strata Vi Electronic Key Telephone System Installation And Maintenance Manual

							Each EKT features a modular 
handset cord and is connected to the 
system via a &conductor modular line 
cord. 
The 20-key EKT (Figure 18) 
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. Proeram- 
ming, for inputting inform;ition’-rcon- 
cerning the 20-key. It is equipped with 
10 additional feature keys-see Section 
100-006-100, General Description, for 
additional information. 
(20-key EKT) 
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 surface to which the base 
can be secured. 
A.2 When selecting the mounting 
site, consider the EKT weight and the 
additional stresses to which the 
mounting will be subjected. 
Mounting screws or mollies, 
appropriate for the surface on which 
the telephone is to be secured, must be 
provided by the installer. Locking tabs secure the base 
to the EKT, The direction in which 
the base is attached to the EKT 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 (A & l3, Figure 20) by 
pushing downward on the base. Refer 
to Figure 19, choose which of the two 
lower choices is appropriate, and cut 
the holes through which the tail cord 
will be routed. 
F El 
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. 
Route the tail cord through 
the holes in the base and secure the 
EKT (Figure 20). Test the sturdiness 
of the EKT mounting.  
						

							Refer to Figure 21, the op- 
tional hanset hanger kit (available from 
Toshiba Teleeom) must be used when- 
ever the EKT is wall-mounted. 
Number Card -/ 
Card Cover 
F n 
Remove the card cover by in- 
g a paper clip in the hole at one 
end. Bend the cover up and remove it 
and the number card. 
Install the handset hanger 
place and tighten the self-tapping 
screws. Reinstall the number card and 
card cover and connect the modular 
plug to the modular jack. 
The STRATA VI has a list of 
standard system data assignments stored 
in ROM that can be ed at any 
time by activating the switch on 
the MCCU PCB. The system must be 
initialized when it is first installed or 
whenever the 1MCCU PCB is changed. 
This will allow the system to be tested 
and any faults to be corrected before 
time is spent on programming. Plug in the EPSA and check 
the 24 VDC output. Make sure the 
voltage is within 
tolerances before 
proceeding. 
Refer to Figure 22 and verify that 
the battery on the ivlCCU (and 
CRDIJ, if equipped) is connected to 
ensure that data changes entered 
after initialization will not be lost 
due to power failure. 
3 
-  
						

							To initialize the system data 
memory, refer to Figure 23 and perform 
the following steps: 
a> Make sure the power itch on the 
MTOU PCB is in the 
position. 
b) Hold in the switch on the 
ously depress the 
,itch and allow i 
lock. 
and release the switch 
MCCU. 
SW 
Depress 
again. 
c> Release the switch, 
he MTOU po-wer switch 
e) System is initialized. 
The Automatic Dialing memory 
will contain random numbers when the 
system is powered up initially. To 
clear the memory; therefore, preventing 
meaningless numbers from being dialed, 
proceed as follows: 
To clear Automatic Dial-Sys- 
tem memory (24 numbers): 
Lock in the 
switch on the 
MCCU-the &I 
LED and the 
NlW/FL LED on Ext. 17 will be on. 
Operate the key on Ext. 
17-SPKR LED will be on steadily. 
Dial E on the dial pad-the 
SPKR flash continuously. 
responding LEDs will light steadily. 
Operate the key-all Ext e 
17 LEDs (except MW/FL) will go 
off. 
Release the switch on the 
MCCU-the MCCU LED and the 
[VW/FL LED on Ext. 17 will go off. matic Dial-Station memory: 
Lock in the 
switch on the 
MCCU-the MCCU LED and the 
MW/FL LED on Ext. 17 will go on. 
Operate the 
key on Ext. 
17-the SPKR LED will be on 
steadily. 
Dial 
on the dial pad-the 
SPKR LED will flash steadily. 
responding LEDs will light. 
Operate the key-all 
17 LEDs (except MW/FL) wil 
off. Ext. 
go 
Release the switch on the 
MCCU-the M 
LED and the 
MI&L/FL LED on Ext. 17 will go off. 
If the appropriate sequence 
above fails, refer to Section 100-006- 
500, Troubleshooting, for assistance in 
locating the fault. 
If the appropriate initializa- 
tion sequence above appears successful, 
proceed to test system. 
To clear the optional Auto-  
						

							EKT functional cheek-the 
following procedures verify the basic 
system functions and confirm the pro- 
per functioning of the EKT itself. 
Refer to Figure 24, and perform the 
following test procedure at each 
station. Begin with Ext, 10. 
With handset on-hook: 
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 
key 
INT 2 : 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 on the dial pad and 
dial tone will stop. 
Tap the EKT microphone and verify 
that the sound can be heard over 
the speaker. 
Press the E key while con- 
tinuing to tap the microphone and 
verify that the sound cannot be 
heard via the speaker. 
Operate 
key 
CO 1 LED: off 
SPKR LED: off 
Operate 1 
key 
CO 1 LED: I-use flash 
SPKR LED: on steady 
Listen for CO/PBX dial tone 
via EKT speaker Operate 
key 
Listen for circuit break fol- 
lowed by dial tone after ap- 
proximately 2 seconds. 
Operate 
key 
CO 3 LED: I-use flash 
SPKR LED: on steady 
Listen for CO/l?BX dial tone 
via EKT speaker 
Operate 
key 
CO 4 LED: I-use flash 
SPKR LED: on steady 
Listen for CO/PBX dial tone 
via EKT speaker 
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 
SPKR LED: on steady 
Listen for CO/PBX dial tone 
via EKT speaker 
Operate 
key 
SPKR LED: off 
EKT speaker: off 
Operate 
1 key 
DND LED: off 
Operate 
key 
CO I LED: I-use flash 
SPKR LED: on 
Listen for CO/PBX dial tone 
via EKT speaker  
						

							Operate 
key 
CO 1 LED: 
I-hold flash 
Speaker off (no dial tone) 
SPKR LED: off 
Operate 
key 
co : I-use flash 
SPKR LED: on 
Listen for CO/PBX dial tone 
via EKT speaker 
key 
flash rate Conference call 
Dial tone continues 
Operate 
key 
co : off 
SPKR LED: off 
Dial tone: off 
Call EKT from another station 
Listen for caller’s voice via 
speaker after warning tone 
INT LED at called station: 
I-called flash 
at calling station 
ne signalling 
heard via 
speaker 
Adjust tone signalling volume with 
the volume control on the rear 
left-hand side of the EKT being 
tested. 
Operate E 
key 
INT : I-use flash 
SPKR LED: on 
Listen for INT dial tone via 
EKT speaker 
Lift handset 
SPKR LED: off 
Speaker: off 
Listen for dial 
tone via 
handset receiver 
Speak into handset transmitter 
Verify that side tone is pre- 
sent at a comfortable level Dial another station and talk into 
the handset transmitter 
Verify that your voice can be 
heard via the speaker on the 
called EKT. 
Set handset back on-hook 
INT 1 LED: off 
This 
completes 
the station 
functional check; repeat the procedure 
for all stations in the system. 
Feature Check-verify that all 
system features function properly as 
instrueted in the aperating Procedures. 
All connections to the equip- 
ment (other than EKTs or CO/PBX 
lines) are made via the barrier strip 
mounted on the front of the NlTOU 
PCB, as shown in Figure 25. 
Connect the eustomer-provi- 
ded MOH/BGM program source (tape 
deck, tuner, or commercial source) via  
						

							the two MOW terminals on the MTOU 
barrier strip. Input impedance is 600 
ohms. 
Adjust the MOH volume with 
volume control on the front 
of the MTOU. Maximum volume is 
limited by internal circuits in order to 
co in ply ‘with FCC regulations. See 
Paragraph for the correct volume 
setting sequence. 
1 
The STRATA VI provides ae- 
cess to an external paging system by 
dialing a single digit (7). The single 
output connection is made via the 
8/600 terminals on the front of the 
IllTOU terminal, and can be used in one 
of three ways: 
To operate a customer-provided 
speaker directly, via an internal 
3-watt amplifier located on the 
MTOU PCB, 
If, more than 3 watts are required, 
an external customer-provided amp- 
lifier can be connected to operate 
the external speaker. 
If talk-back capability is required, 
a customer-provided talk-back amp- 
lifier/speaker can be connected. 
The exact number of speakers 
that may be connected to the 8-ohm, 
3-watt output will depend on the type 
of speaker used, the conductor resis- 
tance, and the desired volume. The &ohm output impedance 
must be selected with the SW2 switch 
on the NlTOU (Figure 26). The switch 
must be on the side labeled “8”* 
Connect the external speakers 
he two 8/600 terminals on the 
MTOU PCB. 
Adjust the speaker volume 
with the 
volume control on the 
of the MTOU. See Paragraph 
for the correct volume setting 
sequence. 
If more power is required 
the MTOU amplifier can deliver, a 
customer-provided external amplifier 
may be connected to the 8/600 ter- 
minals on the MTOU. The external 
speakers should then be connected to 
the external amplifier. 
Determine which output 
impedance is most suitable for the 
amplifier being used, and make the 
selection with the SW2 switch on the 
MTOU (Figure 26). 
If the 8-ohm imoedance is 
volume Eontrol may 
level to 
the external amplifier. If the 600-ohm 
impedance is chosen, the level is fixed 
and the input must be controlled by the  
						

							external amplifier itself. See Para- 
graph for the correct volume 
setting sequence. 
A customer-provided talk-back 
speaker/amplifier may‘ be connected to 
the external page (8/600) terminals on 
the NITOU. 
For talk-back operation, the 
SW2 switch on the MTOU must be set 
to “600” . The iVITOU amplifier is not 
used for the 600-ohm mode in order to 
permit a Z-way voice path. 
The volume control on 
the front of the MTOU will 
not 
function when the 600-ohm mode is 
selected. 
Background music (BGM) can 
be provided in two ways through the 
STRATA VI system: 
Internal to the system using the 
MOH source. 
External to the system when an 
external amplifier is used on the 
External Page feature. 
2 Internal BGM uses the music- 
on-hold program source that is con- 
- neeted to the lMOH input terminals on 
the MTOU. It is broadcast through all 
EKT speakers (under the individual 
control of each user) and will 
be heard if the key is operated 
with the handset on-hook and no line 
selected. 
As a programmable option, 
the BGM from the MOH source can be 
heard via the external 
page (see 
Section 100-006-300, Programming). 
The BGM is automatically 
preempted when a page or ringing signal must be output from an EKT 
speaker or the external page. 
Overall system BGM volume is 
set with the BGM volume control on 
the front of the NlTOU PCB (see 
Paragraph for the correct volume 
setting 
sequence). The volume at 
individual stations is set with 
the 
volume control on the rear right-hand 
side of the EKT. 
If BGN is connected via an 
external amplifier on the external page, 
it can be heard from the external 
speakers only. The STRATA VI, if 
required, can provide a dry contact 
control signal 
for muting the BGM 
when a page is in progress. 
‘TO provide BGM control, 
and install the optional BR (Kl) 
on the NlTOU PCB, see Paragraph 
Connect the BR terminals on 
the MTOU to the control terminals 
(mute, mike switch, etc.) on the 
amplifier. 
Refer to Figure 27. Adjust 
the volume for MOH, BGM and Ext. 
Page with the following sequence:  
						

							&ohms: 
a) Adjust external page level while 
talking over the intercom external 
page feature. 
b) Adjust music source volume to a 
comfortable level (approximately 
-20 dbm). 
c) Adjust the MQH level for 
maximum volume without clipping. 
d) Adjust the BGM level to the 
desired volume using the music 
source. 
600-ohms: 
a) Set the external amplifier 
volume level to about one-half, 
b) Adjust music source volume to a 
comfortable level (approximately 
-20 dbm). 
c> Adjust the MOH level for 
maximum volume without clipping. 
d? Adjust the BGM level to the 
desired volume using the music 
source. 
% As an option, the STRATA VI 
can provide a dry contact for the 
purpose of controlling an external loud ringing bell (or similar device) when the 
system is in the “Nite” mode. 
To provide this service, 
obtain and install the optional NR (K2) 
on the MTOiJ PCB per Paragraph 
the NR Connect the external device to 
contacts on the front of the 
MTOLJ. 
The W3 strap option on the 
MTOU allows the NR relay to function 
in one of two modes. 
a) Answering Machine Control-if 
the W3 strap is not cut, the 
relay is operated continuously 
when the system is in night 
service. This mode is intended 
for indirect control of an 
answering machine. 
b) Night Bell Control-if the W3 
strap is cut, the relay pulses at 
a l-see, on, 3-sec. off rate when 
the system is in night service 
and an incoming call is ringing 
the system. 
The mode is 
intended to be used for indirect 
control of an external night bell.  
						

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