MP-70/50 Wireless Option
98
MP-70/50
• MP-72/52 • MP-73/53 • PN 98-0002-29 • REV 1709.13
O
PERATING THE
MP-70/50
IN
R
ELAY
M
ODE
RELAY mode enables an MP-70/50 to
retransmit the scoreboard control data from
another MP-70/50 that is designated as the
LEAD control. This mode would be used in large
installations that have multiple scoreboard as
operated from wireless controls. This feature
accommodates the need to operate multiple
scoreboards both independently and
synchronized.
The lead/relay configuration essentially takes
the ALL SCOREBOARD concept (detailed in
the Transmission Modes section beginning at
94) and applies it in a manner that allows
synchronous scoreboard operation on multiple
courts rather than only one. See illustrations.
RELAY mode is used instead of changing the channel when synchronization is
required. Take the following steps to accomplish this:
1. Make sure the SELect channels on both controls are different.
2. Set one of the controls to RELAY mode by applying power while
pressing the
1
key. The LCD will display RELAY mode. (If the relay
control is turned on, turn it off and wait 10 seconds before activating
RELAY mode).
Note: The relay control must be set to RELAY mode before the controls are
connected and power is applied to the lead control, or damage to one or
both control outputs could occur.
3. Connect a twisted pair data cable (Fair-Play part number C0170) from
the lead control SCOREBOARD PORT 1 to the relay control
SCOREBOARD PORT 1.
4. Power up the lead control as usual.
In RELAY mode data is sent via the connecting cable from the lead control to the
radio transmitter of the relay control. The relay control then sends the same data
over its own radio channel to the receiving devices. All control of the scoreboards
is accomplished from the lead MP-70/50. Any input on the relay control is
ignored. The control in RELAY mode will stay in RELAY mode until you again
apply power while holding down the
1
key. The control toggles in and out of
RELAY mode with this procedure.
Note: Turning the control off does not take it out of RELAY mode, which was the
case with firmware versions prior to Version 2.03.