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ISS 3, SECTION 5 1 8-450-1 00
TABLE A
FUSE A R RANGEMENT -570A KSU
FUSE PANEL (SEE FIG.
6)
FUSE
FUSE AMP
POTENTIAL
FUNCTION
DESIG
(TYPE)
Fl
First CO/PBX Line Lamps
F2
Second CO/PBX Line Lamps
F3
Third CO/PBX Line Lamps
F4
1-1/3(70A)
lOVac
Fourth CO/PBX Line Lamps
F5
Fifth CO/PBX Line Lamps
F6
Sixth CO/PBX Line Lamps
F7
Seventh CO/PBX Line Lamps
F8
l/2(70G)
Interrupter Motor
F9
1-1/3(70A)
-24V dc(SIG)
System Privacy and DSS Console
FlO
lOVac
Night Transfer and MW Console
Fll
1/2(70G)
-24V dc(SIG)
Paging Amplifier
F12
3/4(70H)
C Battery
F13
1-1/3(70A)
lOVac
First Intercom Path Lamp
F14
Second Intercom Path Lamp
POWER UNITS-19C2119C2A/19C3
FUSE AMP
FUSE DESIG
(TYPE)
FUNCTION
Line Fl
2(MDL-2)
AC Input Power
±18V ac (19C2
2(24C)
Console Lamp Supply
and 19C2A only)
±lOVac
Lamp and Lamp Flash
±lOV ac
5(24F)
Lamp Wink
24V deB SIG
3(24B)
B (Signal) Battery
24V de A TLK
2(24C)
A (Talk) Battery
215Cl (USED WITH 19C3 PU)
18V ac (3)
2(24C)
Console Lamp Supply
VOLTAGE RANGES
-24A
18-26 (19C2, 19C2A)
18-27 (19C3)
-24B
20-26 (19C2, 19C2A)
20-27 (19C3)
Note:
Early production models of the 570A KSUs were equipped with 16 fuses.
Fuses 15 and 16 were used for music-on-hold.
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