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. 
-2-  

-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...

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...

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...

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...

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...

-‘. 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...

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...

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.