User's Manual

Remote Fiber Node (RFN) User Manual
©Copyright 2011, Fiber-Span Page 9 of 38
6.1. WiFi
WiFi is short for “Wireless Fidelity”, and uses IEEE 802.11 specifications with protocols for
communicating end-to-end via a wireless network.
The WiFi Plug-in has 3 access points each one independently going to antenna 1,2 and 3 with
the Channel set to:
AccessPointPosition AntennaID ChannelName
Left ANT1 WiFiChannel1
Center ANT2 WiFiChannel6
Right ANT3 WiFiChannel11
For 802.11g operation, typical receive sensitivity ranges from -73 dBm at 54 Mbps to -96 dBm
at 1 Mbps. For all practical purposes, as Mbps data rate doubles sensitivity drops by 3 dB.
Indoor wireless coverage ranges from 460 ft. at 1 Mbps to 105 ft. at 54 Mbps data rate.
Outdoor use (compared to indoor) with no obstruction distance doubles between 1- 48 Mbps,
but not much higher of 120 ft. at 54 Mbps.
Measurements were taken with a 2.2-dBi dipole antenna for 2.4 GHz.
Maximum power draw per access point is 12.95 Watts x 3 equals 38.85 Watts Total.
For added isolation access point ports have an in-line band pass filter. Instrument operates in
the 2400-2483.5 MHz region.
Figure 3 displays Plug-in WiFi RF connections in rear.
Figure 3
6.2. iDEN
The iDEN Plug-in is a bi-directional service module comprising of uplink and downlink
circuitry. Internally it houses all the devices that condition, filter and amplify the specified
frequency band while rejecting the adjacent family bands operating within the chassis.