Proxim AP5 User Manual
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10/1/01
Harmony 8570 Access Point Technical Description
Document # 610.00xx
PRODUCT:
The product is a WLAN adapter operating in the 5.15 – 5.35 GHz band with a maximum TX
output power of 50mW. It is a small desktop box with associated wall plug mounted 12VDC
power supply, dual external antennas and a 10/100baseT port for connection to standard wired
LAN. The peak gain for each antenna is 6dBi. Refer to the manual for MPE statement. This
device can either be stand alone connected to an RJ-45 LAN hub port, or be connected to the
RJ-45 port of a computing device.
USER CONNECTIONS:
There is a single RJ-45 connector supplied for the single 10/100baseT port. The LED next to the
RJ-45 changes colors to indicate the different connection speeds and blinks to indicate Ethernet
activity.
The 12VDC power is connected via a 2.5mm coaxial power connector.
TEST CONNECTIONS:
There are two 50 ohm RF ports on the PCA, one for each of the two antenna connections. Each
antenna is terminated with a Radiall UMP2.0 snap-on plug. A slide-on version of the plug can be
used during FCC certification for conducted measurements.
ACCESSORIES:
Proxim P/N 4000.0007 wall mounted unregulated power supply, 100-120V/50-60Hz input, 12V 1A
nominal output. Proxim P/N 4000.0030 universal power supply, 100-240V/47-63Hz, 0.8A input,
12V, 1.5A nominal output.
Proxim P/N 6001.0124 unshielded twisted pair RJ-45 cable assembly.
INTERNAL CLOCK AND RF OSCILLATOR FREQUENCIES:
Processor ASIC
PRODUCT:
The product is a WLAN adapter operating in the 5.15 – 5.35 GHz band with a maximum TX
output power of 50mW. It is a small desktop box with associated wall plug mounted 12VDC
power supply, dual external antennas and a 10/100baseT port for connection to standard wired
LAN. The peak gain for each antenna is 6dBi. Refer to the manual for MPE statement. This
device can either be stand alone connected to an RJ-45 LAN hub port, or be connected to the
RJ-45 port of a computing device.
USER CONNECTIONS:
There is a single RJ-45 connector supplied for the single 10/100baseT port. The LED next to the
RJ-45 changes colors to indicate the different connection speeds and blinks to indicate Ethernet
activity.
The 12VDC power is connected via a 2.5mm coaxial power connector.
TEST CONNECTIONS:
There are two 50 ohm RF ports on the PCA, one for each of the two antenna connections. Each
antenna is terminated with a Radiall UMP2.0 snap-on plug. A slide-on version of the plug can be
used during FCC certification for conducted measurements.
ACCESSORIES:
Proxim P/N 4000.0007 wall mounted unregulated power supply, 100-120V/50-60Hz input, 12V 1A
nominal output. Proxim P/N 4000.0030 universal power supply, 100-240V/47-63Hz, 0.8A input,
12V, 1.5A nominal output.
Proxim P/N 6001.0124 unshielded twisted pair RJ-45 cable assembly.
INTERNAL CLOCK AND RF OSCILLATOR FREQUENCIES:
Processor ASIC
33MHz
Ethernet controller
25MHz
RF synthesizer
PLL frequencies of 40, 80, or 160MHz derived from a
32 MHz oscillator
32 MHz oscillator
TX and RX frequencies
5180-5320MHz, 20MHz steps
LO Leakage
4144-4256MHz
Mixer Product
6216-6384MHz
Baseband bandwidth
20MHz
SIGNAL FLOW:
The memory and Ethernet controller communicate with the processor IC. The MAC/baseband
processor integrates the media access control (MAC), the baseband radio functions, A/D and D/A
converters, transceiver control functions and a PCI/Cardbus interface.
The Ethernet controller and processor ASIC each support their own on board clock oscillators at
25 and multiples of 33MHz to include 100MHz and 200MHz.
In transmit, the synthesizer tunes to one of the TX frequencies listed above. Data is initiated at
the Ethernet interface. The Ethernet controller processes serial data to the SDRAM which is then
processed by the internal PCI controller within the processor IC to the MAC/baseband processor.
Current outputs from the DAC of the MAC/baseband processor are low-pass filtered through the
external reconstruction filter. The I and Q signals are converted to RF thru a dual-conversion
architecture, from baseband to IF and from IF to RF signals. These signals are driven off-chip
through a power amplifier, through the antenna switch, and to the antenna connector.