Numeric relays can also provide functions such as communications (SCADA) interface, monitoring of contact inputs, metering, waveform analysis, and other useful features.
Relay race | Benevolent and Protective Order of Elks | men's 4×400 m relay | Athletics at the 2008 Summer Olympics – Men's 4 × 400 metres relay | Internet Relay Chat | Personal protective equipment | Athletics at the 2004 Summer Olympics – Women's 4 × 400 metres relay | Athletics at the 2012 Summer Olympics – Women's 4 × 400 metres relay | 4 × 400 metres relay | 2005 World Championships in Athletics – Men's 4 × 400 metres relay | Personal protective equipment (PPE) | Frame Relay | Athletics at the 2004 Summer Olympics – Men's 4 × 400 metres relay | American Radio Relay League | women's 100m relay team | relay race | Fishermen's Protective Union | 4 × 100 metres relay | 2008 Summer Olympics torch relay | 2003 World Championships in Athletics – Women's 4 × 400 metres relay | Women's 4 × 400 metres relay | Tracking and Data Relay Satellite System | Tracking and Data Relay Satellite | Swimming at the 2013 World Aquatics Championships – Men's 4 × 100 metre medley relay | Swimming at the 1996 Summer Olympics – Men's 4 × 100 metre medley relay | Swimming at the 1996 Summer Olympics – Men's 4 × 100 metre freestyle relay | Swimming at the 1988 Summer Olympics – Men's 4 × 100 metre medley relay | Child Protective Services | Athletics at the 2012 Summer Olympics – Men's 4 × 100 metres relay | Athletics at the 2008 Summer Olympics – Women's 4 × 400 metres relay |