Connector Cables

LL cable extends the length between any Aironet product and its antenna. With a loss of 6.7 decibels (dB) per 100 feet (30 meters [m]) for LL cable and 4.4 dB for the ULL cable, these cables provide installation flexibility without a significant sacrifice in range or performance.

New, improved wireless LAN antenna cables.These low-loss cables have improved insulation and are far less susceptible to water penetration than the previous cables

A coaxial cable carries radio frequency (RF) energy between the antennas and the radio equipment. An antenna cable introduces signal loss in the antenna system for both the transmitter and receiver. In order to reduce signal loss, minimize the cable length and use only low-loss (LL) or ultra low-loss (ULL) antenna cable in order to connect radio devices to antennas.

RF coaxial cable = loss of signal strength

Loss of signal strength is directly proportionate to the length of the cable segment. As the diameter of the cable increases, signal loss decreases, but at a much higher purchase cost. As signal frequency increases (a higher-numbered channel), loss increases.

LL cable extends the length between any Aironet product and its antenna. With a loss of 6.7 decibels (dB) per 100 feet (30 meters [m]) for LL cable and 4.4 dB for the ULL cable, these cables provide installation flexibility without a significant sacrifice in range or performance.

The access point/bridge requires a special serial cable that connects the power injector's console serial port (RJ-45 connector) to your PC's COM port (DB-9 connector). This cable can be purchased from Cisco (part number AIR-CONCAB1200) or can be built using the pinouts in this appendix.

The console adapter is used to connect the RS-232 to RJ-45 console cable to Cisco Aironet access points and sensors that use the 4-pin console port as identified in their respective guides.