AvaLAN Wireless AW900R4-EVAL - Manual (Page 4)

User’s Manual
PAGE 4 Technical support (650) 384-0000 www.avalanwireless.com
AW900R4-EVAL
Electrical Connections
The AW900R4-EVAL 900 MHz Wireless RS-485 Module Evaluation Kit contains two
each of the following items:
• AW900R4 Wireless Ethernet Modules
• AW2-900 Omnidirectional Antennas
• AW-P8 Antenna to Radio Connectors
• 20” USB to Mini-USB Adapter Cables
• 120VAC to 6 VDC Wall Hanger Power Supplies
Additional quantities of any of these components may be purchased from AvaLAN
Wireless or our distributors.
To power up a radio module, make connections to it as shown in this diagram:
Provide some physical separation between two radio module antennas — at least
ten feet. If their antennas are in close proximity, the module radio receivers will be
overloaded, causing degradation in the bit error rate and slower link performance.
900 MHz
Antenna
RS-485
Device(s)
White-striped wire
Plain black wire
Inverting
line “A”
Common
PC with
Windows XP
or later
USB
Note:
The USB connection is not needed after the link is
configured and operating normally. If the USB cable
is connected, the module can draw its power from
it. (A high-power USB port is required.)
Status LEDs
Reset Switch
(cycles power)
Non-Inverting
line “B”