SECTION 573-127-703
3.15
Start-Stop Pulse Contact (continued)
CONTACT BRACKET (STROBING)
Note 1: When strobing auxiliary contacts,
use a 7.42 unit DXD scale. Synchronize the
signal generator of the transmitter distribu
tor with the DXD so that the end of the stop
pulse image is in line with the end of the
stop pulse on the DXD scale when trans
mission is continuous. Use normal signal
line direct current of 60 rna± 10% or
20 rna± 10% to strobe the contacts.
MIN CLOSURE
STOP CONTACT
95 DIV
START CONTACT
60 DIV
Note 2: Breaks are permissible within 5
divisions of the beginning or end of a trace.
Page 48
Requirement
Contacts must close within the following
range.
CLOSURE RANGE
0 DIV OF STOP SEGMENT TO 142ND DIV
OF STOP SEGMENT
122ND DIV OF STOP SEGMENT TO 95TH
DIV OF START SEGMENT
To Adjust
Loosen contact bracket mounting screws.
Position the contact bracket to meet re
quirements. Retighten contact bracket
mounting screws.
