Figure 5-11.-Switch control and potential transformer ACO assembly.
Switch Control and Potential Transformer
indicator lamps indicate the state of the relay under test
ACO Assembly
The switch control and potential transformer action
cutout (ACO) assembly (fig. 5-11) provides control
voltages for bench testing of the linear movement
switches. The control voltages are provided through test
cables from the test jack to the linear switch assembly
under test.
Relay Tester Assembly
The relay tester assembly (fig. 5-12) provides the
facilities for testing each and every type of relay used in
the DFCS and the CSCPs. Relay sockets are provided
for 8-, 10-, and 16-pin relays. The rotary switch is used
to select the appropriate relay coil voltage. The toggle
switch is used to energize/deenergize the relay coil. The
Fuse Tester Assembly
The fuse tester assembly (fig. 5-13) is used to test
fuses for continuity. The POWER ON PBI is used to
apply power to the fuse tester. The POWER ON
indicator will light when the tester is on. When a good
fuse is placed across the contact strips, the CON-
TINUITY INDICATOR light will come on. A blown
fuse placed across the contact strips will not light the
indicator since there is no current path through the fuse.
Computer Switching and Control
Panel (CSCP)
The two computer switching and control panels
(CSCPs) are used to make switch assignments on the
Figure 5-12.—Relay tester assembly,
5-8
