RaceAmerica Timer MB 3210 Series Owner's Manual page 8

Connecting System Options
Fig 5 - RS232 Hard wired Digital Display and/or PC
Limited to 100ft cable lengths
Fig 6 - Hard wired Digital Displays utilizing Communication PODs
for 5"/8" displays; 15"/24" displays have internal PODs
Fig 7 - Wireless displays allow full flexibility
RaceAmerica Model 3210 Timer MB
8