3Com 3CRWX375075A Quick Start Guide - Page 5

3 Connecting External Antennas The access point has connectors for attaching optional external antennas and antenna cables. The tables below list the external antenna and cable models that are certified for use with the access point. Antenna Model 3CWE591 3CWE597 3CWE598 Type 3Com 6/8 dBi Dual-Band Omnidirectional Antenna 3Com 6/8 dBi Dual-Band Hallway Antenna 3Com 8/10 dBi Dual-Band Panel Antenna Restrictions Not supported for IEEE 802.11 a-band channels 36-48 for the United States, Canada, Mexico, Peurto Rico, Panama, Guatemala, Dominican Republic and Colombia Cable Model 3CWE580 3CWE581 3CWE582 Type 3Com Ultra-Low-Loss 6-foot Antenna Cable 3Com Ultra-Low-Loss 20-foot Antenna Cable 3Com Ultra-Low-Loss 50-foot Antenna Cable Length 1.8 m (6 ft) 6.1 m (20 ft) 15.2 m (50 ft) Gain 2.4 GHz: -0.6 dBl 5.0 GHz: -1.2 dBl 2.4 GHz: -2.0 dBl 5.0 GHz: -4.0 dBl 2.4 GHz: -5.0 dBl 5.0 GHz: -10.0 dBl a.Each 3Com cable includes a separate 50 Ohm SMA terminator. Connectorsa SMA (male) to N-type (male) SMA (male) to N-type (male) SMA (male) to N-type (male) The 3Com antennas are dual-band, which means that they operate in both 2.4GHz and 5GHz spectra. You can use these antennas with either the 802.11b/g radio or the 802.11a radio. Each antenna requires the purchase of a separate antenna cable. NOTE: Antenna cables introduce loss of the RF signal. Always use the shortest cable that your application allows. For installation instructions, see the documentation that is supplied with the antenna. NOTE: During the installation, connect the antenna to the access point before connecting the Category 5 Ethernet cable. This ensures that the access point is not powered on when the access point is connected to the network. 4 Mounting the Access Point The access point can be mounted on the following types of surfaces: • Suspended ceiling - flush ceiling tiles • Suspended ceiling - drop ceiling tiles • Junction box • Solid wall or ceiling • Tabletop 5