Lantronix
ION219-x Install Guide
33412 Rev. D
31
Coax Cable and BNC Connectors
BNC (Bayonet Neil-Concelman) are bayonet type connectors, commonly used in CCTV systems. These
connectors are specified by IEC standard IEC60169-8. BNC coaxial-cable media is used for circuits such as DS3,
E1, and 10Base-2 Ethernet. The impedance of the coaxial cable is determined by the interface type; for example:
• 75 ohm for DS3
• 50 ohm for 10Base-2 Ethernet
Coax cable length is dependent upon application, impendence, frequency, and cable quality.
Special attention should be given to the grounding requirements of coaxial cable circuits. Installation may
require grounding at both cable ends or only one cable end or neither cable end. See Figure 28 below.
Figure 13: Coax Cable and BNC Coax Connector Ends