AIR-ACC245LA-R Cisco Aironet Lightning Arrestor

The AIR-ACC245LA-R is a Cisco Aironet lightning arrestor for Cisco Aironet access points and bridges, and for any Cisco Aironet radio device that uses an RP-TNC connector. It limits the amplitude and duration of disturbing interference voltages and improves the overvoltage resistance of the in-line equipment.

Electrically the arrestor has a 50 ohm impedance and a frequency range of 0 to 5850 MHz, with return loss of 20 dB or better and insertion loss of 0.2 dB or less. RF CW power is up to 60 W. Surge current handling is 10 kA single and 5 kA multiple (8/20 microsecond test pulse), and residual pulse energy is typically 250 microjoules. The unprotected side toward the antenna is a TNC-R jack and the protected side toward the wireless device is a TNC-R plug. The weight is 8 oz (0.2 kg).

The AIR-ACC245LA-R installs between the antenna cable of an outdoor antenna and the wireless device, indoors or outdoors, either inline or as a wall feed-through that needs a 3/4 in (19 mm) hole. The kit contains the lightning arrestor, a grounding lug and an instruction sheet. Outdoors, a heavy #6 solid copper wire connects the lug to a ground rod, and the ground connection should be as short as possible.

Antennas for Cisco Aironet radios include the AIR-ANT2524DW-R dual-band dipole antenna and the AIR-ANT2451V-R four-element omni antenna. More Aironet accessories are in Cisco wireless.

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