Fair-Play SP-70, User Manual

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SP-70 Statistics Controller User’s Guide
40
• Before establishing communication between a control set to ALL
SCBDS and its intended receiving scoreboards, be sure to have estab-
lished communication between the controls operating in the SEL
mode and its intended receiving scoreboards. Otherwise, the score-
boards you intend to run with a control tuned to a particular channel
in the SEL mode will be likely to lock onto the signal from the control
set to ALL SCBDS, and may not respond to the intended SEL mode
control when it is turned on. (For more information, see
“A
VOIDING
POTENTIAL PROBLEMS WITH MULTIPLE CONTROLS
”
ON PAGE
44
).
• The scoreboard lamp driver circuit card can accommodate either con-
ventional control wire hookup or wireless radio receiver, but is not des-
ignated to accept both data transmission methods simultaneously.
Operating wireless under
special circumstances
The following sections will give you pointers on setting up and operating
the SP-70 control under special circumstances you may encounter. Keep in
mind that:
•
A control set to ALL SCBDS will transmit indiscriminately to all wireless-
equipped scoreboards in its range, regardless of what channel these
scoreboards have their receivers set to, except for receivers equipped
with a lockout jumper (part no. C1452) installed.
• A control set to the selective (SEL) transmission of channels 1-13, will
transmit to all scoreboards in that vicinity that have their receivers
tuned to that particular channel. Hence, a control set to channel 7 will
transmit to all scoreboards in that vicinity that have their receivers set
to channel 7.