CEDIA ESPA EST Practice Test

Answer - C - Cat 5e cabling can substitute the recommended RS-485 cabling used for an access control system.

Key Takeaway: CAT 5e cables have 100 ohm impedance and electrical characteristics supporting transmissions up to 100 MHz. The enhanced electrical performance of CAT 5e ensures that the cable will support applications that require additional bandwidth, such as gigabit Ethernet or analog video.