Auer Signal PC7MC5 and PC7MC5IO Bases feature an integrated 5-pin M12 connector for error-free installation. The PC7MC5 base connects PC7 modular signal towers to standardized M12 circular connectors with five pins. The PC7MC5IO has IO-link functionality integrated into the tower base. The IO-link base allows the functional upgrade of cost-effective steady light modules to enable blink, flash, and double flash modes. These bases offer IP66 and IP67 degrees of protection and operate within the -30°C to 45°C temperature range.