User's Manual

In-building Antennas

MA 850 Installation and Configuration Guide 12

2.4 In-building Antennas

The in-building antennas are connected to the coaxial cable distribution system by jumper cables

at various points. The antennas will be mounted on the ceiling tiles and should be exposed. All

in-building antenna installations will be such that it will not interfere with indoor traffic and will

not enable any person to touch the antennas.

• Wideband antennas omni – up to 2.5GHz to support 802.11b/g. Use any of the antennas

listed in section 2.4.1

• 50 ohm impedance

2.4.1 Antenna Types

Table 2-3. Antennas to be used for 802.11b/g

Vendor Catalog number Gain [dBi]

Huber+Suhner SWA 0859/360/4/10/V 7 dBi

Mars Antennas MA-CM36-15 2 low band

3-4 high band

5 WLAN 802.11b

Cellwave A08818DC00-28T0 2.1

Antenna Specialists ASP-3561 2

2.4.2 Antenna Connections

NOTE: If the MobileAccess 850 is operated without cellular service, it is required to connect

50Ω

ΩΩ

Ω termination points to each of the remote connectors in the unit. A 50 Ω

ΩΩ

Ω termination is

also required on each unused AP port.

• 50 Ω, 1/2” or 3/8” Plenum coax cables

• Max cable length (typically): 150’

• 50 ohm terminator on unused connections

• For short jumpers (to MRC antenna ports): RG223 2 ft or 10 ft male-to-male coax

jumpers