External Antenna Option - Cisco Aironet 1550 Series Getting Started Manual

External Antenna Option

Warning In order to comply with radio frequency (RF) exposure limits, the antennas up to 8 dBi
gain for this product should be placed no less than 20 cm (8") from your body or nearby
persons. This distance shall be increased to 50 cm (20 ") with antennas that have gain
between 8 and 14 dBi. Statement 339
Warning Do not locate the antenna near overhead power lines or other electric light or power
circuits, or where it can come into contact with such circuits. When installing the
antenna, take extreme care not to come into contact with such circuits, because they
may cause serious injury or death. For proper installation and grounding of the antenna,
please refer to national and local codes (for example, U.S.:NFPA 70, National Electrical
Code, Article 810, Canada: Canadian Electrical Code, Section 54). Statement 1052
Warning Only trained and qualified personnel should be allowed to install, replace, or service this
equipment.
Statement 1030
The 1552E and 1552H access points are equipped with three N-type radio frequency (RF) connectors
(antenna ports 4, 5, and 6) on the bottom of the unit for external antennas to support multiple input
multiple output (MIMO) operation as shown in
be operated with the three external antennas attached. When using the Cisco Aironet
AIR-ANT2547V-N Dual-Band Omnidirectional Antenna, the 2.4- and 5-GHz antennas connect
directly to the access point, as shown in
low loss RF coax cable should be used.
The 1552EU and 1552CU access points are equipped with six N-type radio frequency (RF) connectors
(antenna ports 1-3 on the top of the unit for 5 GHz and antenna ports 4-6 on the bottom of the unit
for 2.4 GHz) for external antennas to support multiple input multiple output (MIMO) operation. The
antenna ports located of top of the 1552EU and 1552CU models are shown in
and 1552CU models must always be operated with the appropriate external antennas attached.
16
Figure 9. The 1552E and 1552H models must always
Figure 10. If the antennas are remotely located, an appropriate
Figure 11. The 1552EU