User's Manual

CDH Communications
Introduction
The CDH Communications 9Xtream Radio is a frequency hopping data transceiver
designed for integration with other products. The 9Xtream operates within the 900 MHz
ISM Band under Part 15 of the FCC Rules and Regulations.
Caution: If this radio is integrated into another product, the system integrator must make
sure that the FCC label is visible from the outside of the final product, or that the
external label provided with this device is placed on the outside of the final product. The
system integrator may only use antennas that have been tested and approved with this
radio to maintain the FCC approval. If a system integrator uses a non-approved antenna
they are responsible for obtaining their own FCC certification. The radio also requires
+5V source voltage. Any voltage higher than 5.5V will damage the radio.
Approved Antennas
Mfr Model Freq Gain Type Connector Dimensions
Astron
AXQ900
PTL
902-928 2dBi Omni MMCX 3”
Astron
AXH900 RP
SMA R
902-928 2dBi Omni
Reverse
Polarity SMA
6.5”
CDH 900CDAN 902-928 2dBi Omni Integrated 3”
Caution: The 9XTREAM has been certified as a mobile device as per FCC Section
2.1091. In order to comply with the FCC RF exposure requirements the 9XTREAM must
be installed with the antennas listed above and a minimum separation distance of 20 cm
must be maintained from the antenna to any near by persons. If the OEM integrates the
9XTREAM into their final product, where the final product is classified as a portable
device per FCC Section 2.1093 (less than 20 cm separation distance between the antenna
to any near by persons). The OEM is responsible for obtaining a separate authorization
on the final product.
The Radio uses an asynchronous serial interface with a start bit, stop bit and eight (8)
data bits at TTL levels for communicating with the host system. Using an RS232 driver
chip (such as a Maxim MAX232) the Radio can communicate directly to a standard
Serial Communications Port on a PC. See the section titled Demo Kit Instructions for a
tutorial to get started using the 9Xtreme Radio.
9Xtreme Features:
• Frequency Hopping Spread Spectrum (FHSS) technology
• Secure over the air data encryption
• Resistant to noise and interference.
• 140mW transmit power
• 20 mile (40 Kilometer) effective range (line of sight)
• Broadcast (promiscuous) networking protocol – data sent to the serial port on one
radio will be presented out of the serial port on all other radios that are within range
and have the same group code. No two radios can transmit simultaneously, when one
radio is transmitting, all others on the network will await a pause in transmissions.