User`s guide

MP-70/50 Scoreboard Controller User’s Guide
138
Power-up sequence for multiple controls
For systems using multiple wireless MP-70/50s, observe the following
power-up sequence:
1. Scoreboards and timers.
2. The MP-70/50 controls set to the SEL mode.
Multiple controls can utilize the SEL TRANSMIT mode, but they must
each be set to different channels.
3. The MP-70/50 control set to the ALL mode. This has a limitation of
ONE set of scoreboards set to ALL. Only ONE control at any given time
should be set to the ALL TRANSMIT mode. No less than 45 seconds
should be allowed to pass between each power-up activation. For
example:
a. Turn power on to scoreboard 1
(CHANNEL SELECT SWITCH =4),
AND SCOREBOARD 2 (channel select switch =9)
b. Wait 45 seconds.
Turn first MP-70/50 power on.
(Mode =SEL, CH4)
c. Wait 45 seconds.
Verify that the scoreboard and shot timers set to
channel 4 are responding to transmission from
the MP-70/50 set to CH4.
Turn second MP-70/50 power on (Mode SEL,
CH9 or ALL).
d. Verify that the scoreboard set to channel 9 is responding to
transmission from the MP-70 set to SEL CH9 or ALL.
Synchronizing transmission modes
In SEL mode, the MP-70/50 controls only the scoreboards with receiver
cards set to the same channel that the control is set to. In ALL mode, the
wireless option controls all scoreboards within range.