TM ll-5805-587-15/3
TO 31W2-1-471-3
SWITCHBOARD EQUIPMENT TESTS
Section IX.
Introduction.
The tests described in this section are designed to verify that
the switchboard equipment, i d e n t i f i e d i n t a b l e 4 - 1 0 , i s f u n c t i o n i n g
properly. Table 4-10 provides a cross reference to the assembly
number and schematic diagram figure number for each major item of
switchboard equipment.
Switchboard Equipment Cross Reference Index
Assembly
Schematic dia
number
Equipment
figure number
Idle indicating lamp control
484081-000
6-14
circuit
position switching circuit
433869-012
6-24
Cord circuit
433865-012/022
6-46
Position circuit
6-47
433866-012
MF keyset and control circuit
433867-012
6-48
Cord test circuit
433868-012
6-49
Operators telephone circuit
433869-012
6-50
Lamp and jack circuits
202690-389
6-51
801439-000
Supervisors call circuit
433890-012
6-76
Switchboard Transmission Paths Test.
a.
The purpose of this test is to check the tran
sion pa
ugh the cords and common circuitry in a switchb
position.
b. Test Equipment and Materials.
The following equipment is
equired.
Four-Wire Telephone Test Set, Stromberg-Car&on 433881-
(l)
(2) Volt-ohmmeter, Triplett 630NS.
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