Toshiba Strata S Electronic Key Telephone System Installation And Maintenance Manual

							MPSA-512 INSTALLATION 
SECTION 100-003-250 
JULY 1984 
4.. 
02.03 Refer to Figure’3, and connect the power 
supply cable in the following order: 
White: +24V 
Black: OV 
Green: 
G 
FIGURE 3-CABLE CONNECTION 
02.04 Refer to Paragraph 08, Section lOO- 
003-200, installation, in order to complete cable 
connection procedures. 
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							-2 TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM MPSA-ZOO INSTALLATION 
SECTION 100-003-255 
JULY 1984 
Strata S 
- POWER SUPPLY 
(MPSA-200) 4 - 
INSTALLATION INSTRUCTIONS  
						

							TOSHIBA SYSTEM PRACTICES 
ELECTRONIC KEY TELEPHONE SYSTEM MPSA-200 INSTALLATION 
SECTION 100-003-255 
JULY 1984 
Strata S 
MPSA-200 INSTALLATION INSTRUCTIONS 
TABLE of CONTENTS 
PARAGRAPH SUBJECT PAGE 
01 
01 .oo 
01.10 
01.20 
01.30 
02 
02.00 
02.10 
02.20 
02.30 
02.40 
02.50 
NUMBER TITLE PAGE 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
MPSA-2DO .............................. 
Reversed MPSA Mounting Bracket .................. 
Toggler 
............................... 
Toggler Insertion .......................... 
Toggler Key 
............................. 
Toggler Screw 
............................ 
MPSA (Wall Mount Configuration) ................... 
PBBU PCB 
............................. 
MPSA Control Panel ......................... 
MPSA Terminal Strip 
........................ 
Wire Harness in MPSA ........................ 
Harness Cable Clamp ........................ 
PBBU Mounting Screw ........................ 
MPSA Control Panel ......................... 
PBBU Mounting Pins ................ .: .......... 
PBBU Heat Sink ........................... 
Battery Terminal Attachment ..................... 
Recommended Wiring Diagram .................... 1 
1 
1 
2 
2 
2 
2 
3 
3 
4 
5 
5 
5 
5 . 
5 
6 
6 
7 
TABLE of CONTENTS ........................ 
ILLUSTRATION LIST ......................... 
GENERAL ............................. 
Description ........................... 
Surface Preparation ....................... 
Mounting the MPSA ....................... 
Fuses .......................... 
BATTERY BACKUP-INSTALLATION .................. 
Description ........................... 
TABLE A-Minimum Wire Gauge ................... 
MPSA Preparation ........................ 
installing the PBBU ........................ 
Required Labels and Warning Tags ................. 
Battery Connection .. 1 .................... .- . 
Installation Finalization ...................... 
ILLUSTRATION LIST 
i 
i 
1 
1 
1 
1 
2 
2 
2 
4 
4 
5 
6 
6. 
6  
						

							01 GENERAL 
01 .OO Description 
01 .Ol The MPSA-200 (Figure 1) is equipped 
with a reversible, built-in bracket; it is configured 
- 
FIGURE 1 -MPSA-200 
at the factory for mounting on a wail or other 
vertical surface. In order to mount on a table or 
horizontal surface securely, the bracket must be 
reversed to the position shown in Figure 2. This 
orientation is necessary to assure proper cooling 
I 
FIGURE 2-REVERSED 
MPSA MOUNTING BRACKET 
01.02 Unpack and inspect the power supply and 
the enclosed hardware. Examine the package 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. YPSA-ZOO INSTALLATION 
SECTION 100-003-255 
JULY 1994 
01.03 Check the hardware list; if it is deter- 
mined that any equipment within the carton is 
missing, contact your Toshiba supplier immed- 
iately. 
01.04 The following hardware, which is re- 
quired to mount and connect the MPSA to the 
system, is supplied with each unit. 
ENCLOSED HARDWARE 
Quantity Item 
2 T.C. Toggler Wall Fasteners 
(Figure 3) 
2 #14 Hex Head Sheet Metal Screws 
1 Toggler Key 
1 Template 
1 Spare AC Fuse 
(Fl ,2.5 amp, SLO-EL0 125-VAC) 
1 Spare DC Fuse 
(F2, 5.0 amp, Fast-BLO, 32-VDC) 
1 16 AWG, 3-wire Jacketed Cable 
(54 inches) 
Legs 
FIGURE 3-TOGGLER 
01.10 Surface Preparation 
01 .l 1 Choose a suitable location (either vertical 
or horizontal) for the MPSA and locate the tem- 
plate on that location. If on a wall, use a spirit level 
to verify that the drilling points are level. 
01.12 Place punch marks on the mounting sur- 
face through the two “+” marks on the template. 
01 .13 Drill through the mounting surface 
with a 
5/l 6-inch bit to prepare the anchoring holes. 
01.20 Mounting the MPSA 
01.21 Press the anchor legs of the togglers 
together, and insert them into the anchoring holes 
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							MPSA-200 INSTALLATION 
SECTION 1 W-003-255 
JlJl.Y 1994 
until their neck flanges are flush with the mount- 
ing surface (Figure 4). If insertion is difficult, tap 
them lightly with a hammer. 
-face 
FIGURE 4-TOGGLER INSERTION 
01.22 insert a toggler key into the small hole in 
the neck of each fastener, as shown in Figure 5. 
This should cause the anchor legs to “pop” open. 
Remove the toggler key. 
Spread 
Anchor 
Legs 
FIGURE 5-TOGGLER KEY 
01.23 Thread the screws into the small holes in 
the center of the togglers. Leave some clearance 
between the bottom of each screw head and the 
mounting surface (Figure 6). 
Sheet 
scl 
T 
F 
FIGURE 6-TOGGLER SCREW 
01.24 Place MPSA against the mounting sur- 
face with the screws protruding through the holes. 01.25 Position the power supply so that the nar- 
rower portions of the keyholes slip over the screws 
(Figure 7), and (if the unit is wall-mounted) the 
weight of the power supply is supported. Tighten 
the screws. 
01.26 If. the power supply is table-mounted, 
make certain the unit rests on its four .rubber 
“feet” (this is essential for proper cooling) and 
secured with the mounting bracket. 
01.30 Fuses 
01.31 
Remove the spare fuses from the hard- 
ware carton, and place them in their individually 
marked holders. 
01.32 Remove and inspect the fuses that were 
shipped inside the MPSA. If either fuse is defec- 
tive, replace it and order another spare fuse from 
your Toshiba supplier. 
01.33 Connect the MPSA to the MKSU per 
Paragraph 05.20, Section 
100-003-200, Instal- 
lation. (If a power battery backup unit is to be 
installed, see next paragraph.) 
02 BAlTERY BACKUP INSTALLATION 
02.00 Description 
02.01 
The power battery backup unit (PBBU) in 
Figure 8 is an optional PCB which may be installed 
in the MPSA-200 to interface with two auxiliary 
12 VDC batteries. In the event of an electrical 
-- 
power failure, the PBBUprovides an automatic 
battery power source, permitting a typical 
Strata S system to continue normal opera- 
tions for some time (in direct ratio with the type 
and size of the batteries chosen). 
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							FIGURE 8-PBBU PCB 
02.02 The PBBU contains a voltage sensing cir- 
cuit which causes an electro-mechanical relay to 
connect the back-up battery power to the system 
before the MPSA output voltage drops below 21 
VDC (at which point system functions would be 
MPSA-200 INSTALLATION 
SECTION 100-003-255 
JULY 1984 
disrupted and existing calls would be discon- 
nected). 
02.03 When the normal source of electrical 
power is restored. the voltage sensing circuit relay 
will disconnect the standby battery power source. 
02.04 If the standby battery power source out- 
put fails below 21 VDC while it is connected to the 
system, the voltage sensing circuit will cause the 
relay to disconnect the standby batteries from the 
system. 
02.05 The standby batteries will not be recon- 
nected unless: 
0 The “Battery Override” switch (Figures 8 and, 
9) is placed in the ON position. 
. . . or . . . 
l The depleted batteries are replaced by a freshly 
charged pair and the “Battery Override” switch 
is turned on and then released. 
FIGURE 9-MPSA CONTROL PANEL 
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							MPSA-ZOO lNSTAUAllON 
SECTION 100-603-255 
JULY 1994 
_.. 
02.06 The PBBU also contains circuitry to pro- 
vide the charge current necessary to maintain the 
batteries at a satisfactory level of charge while the 
Strutu S system is in normal operation. An 
external fast charger may also be connected 
across the battery output terminal connections. 
02.07 The PSBU kii contains the following: 
l PBBU-power battery backup PCB. 
l Fuse-spare battery protection fuse. 
l “PBBU-4 RN”-decal to be placed on the 
front of the MPSA. 
l “WARNING”-warning tag for attachment to 
the 115 VAC power cord. 
02.08 In addition to the kit, these installer- 
-provided items are needed to install a PBBU. 
l Two Batteries-lead-acid, maintenance-free 
automobile batteries (80 amp/hr maximum) 
are recommended. The procedures in Para- 
graph 02.40 assume batteries with side- 
mounted terminals are used. 
l Battery Rack & Separator-a battery rack and 
separator should be used to assure the batter- 
ies will not tip and spill battery acid or acciden- 
tally short the battery terminals. 
l Two-Wire Connecting Cable-a 2-wire con- 
necting cable, terminating at one end with %- 
in. ring terminals and at the other end with 
‘%-in. spade terminals, is required to connect 
the batteries and the MPSA. The minimum 
wire gauge must be determined by the loop 
length of the connecting cable (as indicated in 
Table A). 
TABLE A-MINIMUM WIRE GAUGE 
LOOP LENGTH RECOMMENDED SIZE 
12feet 16 gauge 
20 feet 14 gauge 
30 feet 12 gauge 
50 feet 
lOgauge 
l Single-Wire Cable-a 16 AWG single-wire 
cable, approximately 18 inches in length and 
equipped with ring terminals, is required to 
connect the two batteries in series. 
l Cable Clamp-a cable clamp should be used to 
prevent cable movement from affecting the 
batteries. 
l Battery Protection--a XI-amp, 32V fuse, or a 
1 O-amp DC instantaneous-tripping circuit 
breaker, is required to protect the baiter& 
from power surge or short circuit damage. 
l Bolts-four H x W-in. hex head bolts are re- 
quired to connect the cable terminals to the 
batteries. 
l Washers-eight %-in. flat washers and four 
N-in. internal-tooth lock washers are required 
for the above cable terminal connections. 
l Battery Cabinet-if the batteries are not located 
in a well-ventilated closet or other secure area, 
protected from fire or sparks, a properly venti- 
lated protective cabinet is required to safe- 
guard them. 
CAUTION! 
The power supply, battery, battery rack, 
and the interconnecting wiring shall be 
installed only by qualified installem. in ac- 
cordance with al/applicable electrical codes 
and Artic/e 480 of the National Electrical -. 
Code. Before installing see the ‘*Install* 
tion Instructionss”enclosed with each item. 
fMFOt?TANTl 
Only trained personnel may service or in- 
stall the PBt?U and power supply. 
02.10 MPSA Preparation 
02.11 Verify that the power switch on the 
MMAU is in the OFF position, and then disconnect 
the 115 VAC power cord. 
02.12 Remove the MPSA terminal strip cover 
FIGURE lO-MPSA ~RMINAL STRIP 
02.13 
The f&A cover is secured by ten 
screws. Vrewing the MPSA as if it is wall-mounted, 
two screws will be located on the front and four on 
each side. 
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							-‘. 02.14 Remove ali ten screws. 
02.15 Remove the cover and set it aside. 
02.16 Locate the multi-wire harness in MPSA 
(Figure 1 1 ), it terminates in a nylon connector. 
MPSA-200 INSTALLATION 
SECTION 1 llO-003-255 
JULY 1994 
02.23 Slip the PBBU fuse holder and battery 
override button through their respective ports in 
the control panel (Figure 14). The PBBU mounting 
bracket should be flush against the rear of the 
control panel. The harness should flow around the 
PBBU PCB, with no wires beneath it. 
FIGURE 11 -WIRE HARNESS IN MPSA 
02.17 The harness is loosely secured to the 
chassis with a cable clamp (Figure 12); the clamp 
will allow slight harness movement. 
FIGURE 14-MPSA CONTROL PANEL 
02.24 Align the two tan-colored PBBU pins with 
the two holes in the mounting bracket. The har- 
ness should flow around the PB5U PCB, with no 
wires beneath it (Figure 15). Press the pins into the 
holes until they catch. 
FIGURE 12-HARNESS CABLE CLAMP 
02.20 Installing the PBBU 
02.21 
Two plugs are mounted in the MPSA con- 
trol panel; pop them out and discard. 
02.22 Unwrap the PBBU. Remove and save the 
screw located in the mounting bracket (Figure 13). 
FIGURE 13-PBBU MOUNTING SCREW FIGURE 15-PBBU MOUNTING PINS 
02.25 Use the previously removed screw and 
secure the mounting bracket to the control panel. 
02.26 Plug the connector into the nine-hole 
jack in the center of the PBBU. 
Do not force the 
prongs into the jack, they are keyed so that they 
can be mated in only one position. 
02.27 Make certainthat no wires from the.har- 
ness are caught between the cover and the PBBU 
heat sink (Figure 16), and replace the MPSAcover. 
Secure it with the ten screws originally removed. 
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							MPSA-200 INSTALLATION 
SECTION 
100-003-255 
JULY 1994 
FIGURE 16-PBBU HEAT SINK 
02.28 
Depress the battery override button (Fig- 
ure 14). If it catches and stays in, press it again to 
cause it to release and protrude out of the control 
panel. The button must be out for the MPSA to 
operate normally. 
02.29 Remove the spare fuse from the P88U 
kit, and put it in the holder located on the top of the 
MPSA. 
02.30 
Required Labels and Warning Tags 
02.31 
Remove the warning tag from the kit and 
tie it to the power cord where it connects to the 
MPSA. 
02.32 The “PBBU-4 REV”decal must be placed 
on the control panel of the MPSA. Remove the 
decal from the’kit, peel the backing off, and place it 
on the control panel (Figure 14). 
02.40 Battery Connection 
DANGER! 
Do not attempt to connect the batteries to 
the MPSA while the AC power cord is 
plugged in, or without the MPSA being 
connected to the MKSU. Do not connect 
the two-wire cable to the batteries before 
connecting it to the MPSA. Once the bat- 
teries are connected to the MPSA the 24 V 
output terminals are live. 
02.41 Select a location for the batteries near 
the power supply. The loop length of the cable 
connecting them to the power supply will deter- 
mine the minimum gauge wire which can be used 
in the cable. See Table 
A 
DANGER! 
The area in which the batteries are to be 
locatedmustbe wellventilatedtopreventa 
dangerous accumulation of battery gases. 
The batteries must also be protected from 
moisture and extreme temperatures. 
02.42 Secure the batteries in the battery rack 
and separator, which should be located in a min- 
imum access area, such as a closet or a well 
ventilated cabinet. 
02.43 
Verify that the battery override button is 
in the OFF (out) position. 
02.44 Loosen the two screws on the terminal 
strip identified as 24V/BAllERY. 
02.45 Connect the battery fuse (or circuit 
breaker) lead to the negative terminal on battery 
#l (Figure 17). 
Batters r Terminal 
Lockwasher’ 
Bolt/ 
FIGURE17 i _ 
BATTERY TERMINAL AlTACHMENT 
02.46 Attach the negative wire of the 2-wire 
cable to the battery fuse (or circuit breaker). 
02.47 Connect the positive wire to the positive 
terminal of battery #2 (see Figure 17). 
02.48 Connect the two batteries with the sin- 
gle-wire cable--one end to the positive terminal 
on battery #1 and the other end to the negative 
terminal on battery #2 (Figure 18). 
NOTE: 
Place the cable clamp over the two-wire 
cable and secure it to either the battery rack 
or the protective cabinet. Adjust the clamp to 
relieve strain on the cable. 
02.50 Installation Finalization 
02.51 Plug in the AC power cord, and verify that 
the AC ON indicator is lit. 
02.52 
Unplug the AC power cord, and verify 
that the DC ON indicator is lit to indicate that the 
batteries are supplying electrical power. 
02.53 Replace the termi’r;al strip cover and test 
the 
Strata Ssystem functions under both AC 
and battery back-up power. 
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							MPSA-200 INSTALLATION 
SECTION 100-003-255 
JULY 1984 
Battery #2 r Clamp 
1 ‘k m r + Marker 
A -- 
-- 
0 
-- 1 / 1 MPSA-200 
si”g,&iz9yLJ 
Cable Battery Rack 
and Separator To MKSU 
FIGURE 18--RECOMMENDED WIRING DIAGRAM 
IMPORTANT! 
When testing is complete, make certain that the 
battery override button is in the OFF position 
and that the AC ON indicator is lit.