Connecting external antennas
Introduction
B-4
Optional 802.11a/b/g antennas for MSM APs
These four optional 802.11a/b/g antennas are certified for use with these MSM APs:
Y=Yes, supported.
Antenna Notes:
4.4 dBi 2.4GHz Indoor/ Outdoor Omnidirectional antenna (J8441A) is a high-
performance omnidirectional collinear antenna used for 2.4 GHz RF-distribution systems.
Its flattened radiation pattern focuses energy along the horizontal plane to provide
extended coverage in large rooms or vaulted areas. It may also be pole-mounted.
7.4 dBi 2.4GHz Outdoor Omnidirectional antenna (J8444A) is a mast-mounted
antenna.
3/4 dBi Dual Band Diversity indoor antenna (J8997A, indoor only) is a ceiling-
mounted spatial omnidirectional array. Two independent vertically polarized radiators
provide null-free omnidirectional coverage for meeting rooms, offices, or other enclosed
spaces.
6.9/7.7 dBi Dual Band Directional antenna (J8999A, indoor / outdoor) is a
directional patch array enclosed in a UV-stable weatherproof radome. The focused
radiation pattern may be used to extend point-to-point link coverage or to provide
targeted sector coverage.
AP
Freq.
Band
Antenna
4.4 dBi
2.4GHz
(J8441A)
7.4 dBi
2.4GHz
(J8444A)
3/4 dBi
Dual Band
(J8997A)
6.9/7.7 dBi
Dual Band
(J8999A)
MSM310 2.4 Y Y Y Y
5YY
MSM310-R 2.4 Y Y Y Y
5YY
MSM320 and
MSM325
2.4 Y Y Y Y
5YY
MSM320-R 2.4 Y Y Y Y
5YY
MSM335 2.4 Y Y Y Y
5YY
MSM422
Radio 2
2.4 Y Y Y
5Y
MSM422
Radio 1
2.4
5