Toshiba Strata Xii, Strata Xx General Description Manual

							to be either 8 ohms or 600 ohms. If 8 ohms is 
selected, the output will be via a 3-watt ampli- 
fier on the 
MPRU, and the voice path will be 
one way. If 600 ohms is selected, an external 
PA amplifier or talkback amplifier is required 
and the internal voice path will be 2-way. 
05.12 To equip either of the two relay service 
functions; obtain the optional relay from your 
- Toshiba supplier and install it in the proper loca- 
tion on the MPRU, per Figure 10. 
FIGURE 10 
RELAY INSTALLED WITH SW2 SWltCH 
ml 5v 
KSU 24~1 
ddR ~-EKTI 1 
IN3 IHLLHI IUN 
SECTION 100-020-200 
JUNE 1983 
05.13 
External page impedance is selected 
with the SW2 switch located adjacent to the relay 
sockets on the MPRU (Figure 10). Decide if 8- or 
600-ohm impedance is required, then make the 
selection by positioning the SW2 switch. to “8” 
or “600”, whichever is required. Figure 10 shows 
the switch in the &ohm position. 
06 
POWER CONNECTlONS 
06.00 MPRU PCB Installation*. 
06.01 The MPRU front panel ‘provides the 
connection point for the 24 VDC input from the 
external power supply. Therefore, the MPRU must 
be installed first. 
06.02 Install the MPRU PCB in its proper slot 
in the MKSU (Figures 15 & 16). 
06.10 Power Connection 
06.11 Plug the power supply into a 115 VAC 
outlet and check its output voltage to be sure 
it is between 23.2 and 28.2 VDC. 
						

							INSTALLATION 
SECTION 100-020-200 
JUNE 1983 
cover from the power terminal strip on the MPRU, 
and, with the supplied cord, connect the power 
supply to the terminal strip and the MKSU frame 
ground (see Figure 11) 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. Secure the power cord to 
the MKSU with the plastic cable clamp that is 
provided. 
06.13 Use the additional green wire packed 
with the system to bond the “E” and “OV” 
terminals on the power supply (see Figure 11). 
06.14 For protection against static electricity, 
a green jumper wire is attached to the “FG” screw 
(refer to Figure 11). This wire must be connected 
to the “OV” terminal on the MPRU power strip. 
Reinstall the plastic protective cover on the power 
strip at this time. 
06.15 Both Toshiba STRATA electronic key 
telephone systems require a solid earth ground 
on the “FG” 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. In most installations, 
within the continental United States, the ground 
provided by the “third wire ground” at the com- 
mercial power outlet will be satisfactory for all 
STRATA requirements. However, in a small per- 
centage of installations this ground may be in- 
stalled incorrectly. Therefore, prior to installing 
a 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 (maximum: 1 ohm), 
or by using a commercially available earth ground 
indicator. If neither procedure is possible, then 
the test procedures outlined in Paragraph 06.16 
should be performed. 
WARNING!: 
Hazardous voltage that may cause death or 
injury is exposed during the folio wing test. 
Use great care when working with AC 
po weriine voltage. 06.16 
Test Procedure - 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. Obtain a suitable voltmeter and set it for 
a possible reading of up to 250 VAC, 
Connect the meter probes between the two 
main AC voltage points on the wall outlet. 
The reading obtained should be 90 * 130 VAC. 
Move one of the meter probes to the 3rd prong 
terminal (GND). Either the same reading or 
a reading of 0 volts should be obtained. 
If the reading is OV, leave one probe on the 
GND terminal and move other probe to the 
2nd voltage terminal. If a reading of OV is. 
obtained on both voltage terminals, the outlet 
is not properly grounded. Omit Steps 5%7 
and proceed directly to-Step 8. 
If a reading of OV on one terminal and a 
reading of 90% 130 VAC on the other terminal 
is not obtained, the outlet is not properly 
grounded. Omit Steps 6 & 7 and proceed 
directly to Step 8. 
If a reading of OV on one terminal and a 
reading of 90 %130 VAC on the other terminal 
is obtained, remove both probes from the 
outlet. 
Set meter on the “OHMS/Rxl” scale, place 
one probe on the GND terminal and the other 
probe on the terminal which gave a reading 
of OV. A reading of less than 1 ohm should 
be obtained. If a reading of less than 1 ohm is 
not obtained, the outlet is not adequately 
grounded. 
If the above tests show the outlet is improperly 
grounded, that condition should be corrected 
by a qualified electrician (per Article 250 of 
the National Electrical Code) before STRATA 
is connected. 
06.17 Ensure that the power switch on the 
MPRU is OFF, then plug the power supply into 
the 115 VAC outlet and measure the voltage 
at the MPRU input terminals. Correct any prob- 
lems before proceeding. 
07.00 
07 PCB INSTALLATION 
Memory Protection 
07.01 Mount the AMMU on the MCAU (Figure 
-8-  
						

							INSTALLATION 
SECTION 100-020-200 
JUNE 1983 
12). Locate the SW3 battery strap on the AMMU 
(Figure 2) and connect the memory back-up 
battery. The strap is shown in the OFF or dis- 
connected position. To connect the battery, 
remove and reinstall the strapping plug so that 
it bridges the center pin with the pin labeled ON. 
FIGURE 12-AMMU ONTO MCAU 
07.02 
Mount the CRDU(s) on the MCBU and 
MDSU (see Figures 13 and 14). Locate the SW1 
battery strap on the CRDUs (Figure 1) and con- 
nect the memory back-up battery. The strap is 
shown in the OFF or disconnected position. To 
connect each battery, remove and reinstall the 
strapping plugs so that they bridge the center pin 
with the pin labeled ON. Ascertain the number 
and position(s) of CRDU PCBs required for your 
system per Table A-dedicated Automatic Dialing 
key codes reside at the lower end of the station 
register (that is: 10, 11, etc). 
FIGURE 13-CRDU ON MCBU 
FIGURE 14-CRDU ON MDSU 
TABLE A-CRDU POSITIONS 
NOTE: 
The quantity of Automatic Dialing numbers (STRA TA XII & XX) provided the system and 
stations by the available options are listed in Table A. A CRDU is equipped on each PCB 
mentioned and the respective address codes are indicated in parenthesis. 
“Stations lo-41 for STRATA XII. 
. . 
-9-  
						

							INSTALLATION 
SECTION 100-020-200 
JUNE 1983 
07.10 PCB Installation Sequence PCBs (Figures 15 and 16). 
- 
07.11 Install the MCAU/AMMU and MCBU 
PCBs in their correct MKSU positions (Figures 
15 and 16k a) For STRATA’ XII; install #1 MXPU for 
16 or less stations (for MSTU #l , 21, add 
#2 MXPU for more than 16 stations 
(for MSTU #3, 4). 
07.12 install the MINU in the correct MKSU 
position (Figures 15 and 16). 
07.13 Install the appropriate number of MXPU b) For STRATA XX; select the number and 
positions of the MXPU PCBs required for 
your system per Table B. 
5 
0 
I j! 
i ; 
MCB” MDS” at MOP” 
MOP” 
c. 
. . . 
“i 
El TEL 
L Y-L MOP” 
. 
DI TEL 
Ml& 
MCOU 
-MF 
01 
02 
03 
El 
Iii3 MST”? 
@ 
j , 
8 
1 
MSb” 
MCO” 
-M!=. 
01 
02 
03 
El 
3 
hl Y h 
: > 
,” 
Iit 
n 
- 
I2 MSM” 
, 
1 
03 
II 
03 
0 
FIGURE 15-PC& IN MKSU (STRATA XII) 
-lO-  
						

							. .._ m____. .V.. 
SECTION  100-020-200 
JUNE  1983 
llr-lcf YCOU 
MCO”  -MF 
=o 1 
02  
0 
=1 
GL “7 MCOU LiU5.I-U- 
MCOU  MCOU -MF -MF 
‘
Or  PO1 
02 02 
0’  0’ 
ziD1 L 
I 
II 
- 
I=& 
MC.4 MCBU 
I  II 
0 
SET 
MCOU .YF 
DO  t 
02 
0 ’ 
El , 
L 
MIN” 
MCOU -YF 
PO1 
02 03 
I  . 
zl 
1 
0 
0 SET 
0 
1 - 
MST”2  MST”2 MSTW 
0 
:: 
0 
-  0 
0 
~~ 
0  0 
I1 
I  - 
FIGURE 
16-PCBs IN MKSU  (STRATA  XX) 
, 
-ll-  
						

							IN3 IALLAI IUN 
SECTION 100-020-200 
JUNE 1983 
,z u f_” $;C - -- - 7.. ~ TABLE B 
MXPU POSITIONS 
Stations in MSTU Upto 12 13 to 21 
the system equipped CO/PBX lines CO/PBX lines 
& 4 intercoms & 6 intercoms 
10~25 
. lY4 $1 #l, 2 
10 +l #l, 3 #lb4 
10 d-57. 1~6 # 1.3.5 +1~6 
10~65’ l-8 #l, 3, 5, 7 #l-8 
.- 
07.14 Follow the position arrangements in- 
dicated in Figures 15 and 16, and install the re- 
quired MSTU PCBs. 
a) STRATA XII & XX: 
#l MSTU serves stations 10~17 
#2 MSTU serves stations 18%25 
#3 MSTU serves stations 26x33 
#4 MSTU serves stations 34%41 
b) STRATA XX: 
#5 MSTU serves stations 42%49 
#6 MSTU serves stations 5&57 
#7 MSTU serves stations 5&65 
07.15 Select the proper type of MCOU PCB 
(MF or DP) and install the required number in 
the positions shown in Figures 15 and 16. 
a) STRATA XII & XX: 
#l MCOU serves CO lines 1x3 
#2 MCOU serves CO lines 4-6 
#3 MCOU serves CO lines 7x9 
#4 MCOU serves CO lines lo-12 
b) STRATA XX: 
#5 MCOU serves CO lines 13~15 
#6 MCOU serves CO lines 16%18 
#7 MCOU serves CO lines 19%21 
07.16 If the system is to be equipped with 
a DSS console, install an MDSU in the correct 
MKSU position (Figures 15 and 16). 
07.17 If the system is to be equipped with 
the Off Premise Line (OPL) feature, an MPLU 
PCB must be used in place of an MCOU for the 
CO lines in question. An MPLU MF or MPLU 
DP should be chosen depending upon the serving 
central office. Each MPLU PCB serves three circuits. 
(Maximum is one MPLU per system. 07.20 MSMU Installation 
07.21 If the system is to be equipped with 
Station Message Detail Recording (SMDR), an 
MSMU must be installed in the correct location 
per Figures 15 and 16. Install the MSMU as follows: 
07.22 Locate the SW1 battery strap on the 
MSMU (Figure 17) and connect the memory 
back-up battery. The strap is shown in the OFF 
position. To connect the battery, remove and 
reinstall the strapping plug so that it bridges the 
center pin with the pin labeled ON. 
FIGURE 17-MSMU CONNECTION STRAPS 
07.23 
Select the data output speed using the 
SW2 strap (Figure 17). The speed may be set at 
300- or 1200-BPS by installing the strapping plug 
so that it bridges the center pin with the terminal 
labeled “300” or “1200”. The SW2 strap is shown 
in the 300-BPS position. 
07.24 
The SMDR feature will printout call * 
records of both incoming and outgoing calls or  
						

							INSTALLATICJN 
SECTION 100-020-200 
JUNE  1983 
MKSU  (STRATA  XII & XX) 
To  CO 
25Pair Cable 
L 
2-Pair 
n 
I  . 
I  . 
Tuner 
External 
MDF 
I- 
1 
2-Pair I 2-Pair  2-Pair 
FIGURE 20-SYSTEM  DIAGRAM 
-14-  
						

							(or equivalent) is 
feature is utilized. required if the music-on-hold 
! 08.10 Main Distribution Frame (MDF) Con- 
figuration 
08.11 Use one split connection block for 
each group of eight stations; 66Ml-50 split 
connection blocks are recommended for use in 
_ the STRATA main distribution frame (MDF). 
08.12 A 25-pair male-amphenol-ended cable 
is connected directly to the front of each MSTU 
I  and fastened with the 
(Figure 21). arovided metal bracket 
CABLE 
CLAMPS 
I 
FIGURE 21-MKSU CABLE CLAMPING 
08.13 Secure the cables to the bottom of the 
MKSU shelf (Figure 21) with the provided plastic 
cable clamps. Route the cables under the MKSU 
and toward the rear, as shown in Figure 22. 
08.14 
Refer to Figure 23, and route the cable 
from #l MSTU (stations 1 0%17) to Block 1, cable 
from #2 MSTU (stations 18-25) to Block 2, etc. 
08.15 
Use the industry-standard color code 
sequence and terminate the cables on the MDF 
-15- 
MKSU _ 
INS IALLAI IWN 
SECTION 100-020-200 
JUNE 1983 
L 
FIGURE 22-MKSU CABLE ROUTING 
blocks as shown in Figure 23. (Use one side of 
each block for each cable.) Figure 23 is generic, 
in that it shows the basic diagram for each MSTU. 
Use Tables C and D for correct cross-connect 
data for all stations in both systems. 
NOTE: 
The remaining portion of the split block is 
not used. 
08.20 
Station Cable Connections 
08.21 
Terminate the individual 2-pair station 
cables consecutively on each MDF block, and 
attach them to the side opposite the MSTU cable. 
Use bridging clips to connect the MSTU cable pairs 
to the station cable pairs. 
08.22 
The cables used for station wiring should 
be twisted pair. 
08.23 
The overall length of the cable run must 
not exceed 1000 ft. (305 m) for 24 AWG wire. 
IMPORTANT: 
When ins tailing 
station cable, do not run  
						

							INSTALLAl IUN 
SECTION 100-020-200 
JUNE 1983 ‘, 
I 
TO MSTU 2-pair JACKETED 
STATION CABLE 
hWJIT 2 
1 
1 CIRCUIT 3 
1 
1 CIRCUIT 4 
-I 
1 CIRCUIT 5 
_I 
1 CIRCUIT 6 
J 
i’ I 
 
, 
MODULAR STATION BLOCK ’ 
 , 
/ 
- 
! 
I NOT USED 5432 
L-J t 
66M150 SPLIT BLOCK 
FIGURE 23-MDFIEKT WIRING 
i