Daktronics Galaxy AF-3155, Руководство пользователя

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3.8 Signal Termination Between Two (or More) Signs
Reference Drawings:
Controller, Galaxy, 8-conn., J-1087 ............................. Drawing B-177838
RS422 Interconnection
Figure 33: Quick Connect Cable
•
The quick connect cable is the
most common method of
terminating signal between two
displays. The four-foot cable goes
from the RS422 OUT (J34) on the
first display to the RS422 IN (J32)
on the second display.
•
If the displays are not back-to-back, or are too far apart for the quick
connect interconnect cable to reach, use a 4-conductor shielded cable (more
conductors or a second cable may be required if also using a temperature
sensor). One end will connect at the “RS422 OUT” 6-position terminal
block (TB3) on the controller of the first display, and the other end of the
cable will terminate on the “RS422 IN” 6-position terminal block (TB2) on
the controller of the second display. See
Figure 34
and Drawing B-177838
for additional information. Note: When not using the quick connect cable,
the cable must be run through conduit.
Figure 34: RS422 Signal Termination Panels
Electrical Installation
3-19