Power-Up Sequence For Multiple Controls; Synchronizing Transmission Modes - Fairplay MP-70 User Manual

MP-70/50 Wireless Option
P -
OWER 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.
3. Multiple controls can utilize the SEL TRANSMIT mode, but they must
each be set to different channels.
4. 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.
c. Wait 45 seconds.
d. Verify that the scoreboard set to channel 9 is responding to
transmission from the MP-70 set to SEL CH9 or ALL.
S
YNCHRONIZING 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.
In a volleyball tournament, for example, you could display the scores of two
matches on two independent scoreboards, each controlled by a wireless MP-
70/50. In this case, as shown below, the radio transmitter on both controls would
be set to SEL.
94
Turn first MP-70/50 power on.
(Mode =SEL, CH4)
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).
MP-70/50 • MP-72/52 • MP-73/53 • PN 98-0002-29 • REV 1709.13