Distributor of Digi International: Excellent Integrated System Limited
Datasheet of XC09-009PKC-UA - MODEM RF 900MHZ USB 9600 W/ACC
Contact us: [email protected] Website: www.integrated-circuit.com
9XCite
‐
PKG
‐
U™
USB
RF
Modem
–
Product
Manual
v2.1
[2007.01.04]
©
2007
MaxStream,
Inc.
1.5. Pin Signals
Figure
1
‐
04. Front
View
1.6. Power Options
Two power options are available to the XCite-PKG-U RF Modem:
• Bus-powered Mode - The RF modem powers itself directly from the USB host through the
USB cable.
• Self-powered Mode - The RF modems is powered using an external power supply.
The external power must supply a DC voltage between 5 and 12 V. The power supply currently
shipped with MaxStream Development Kits is a suitable power supply for this option.
XCite-PKG-U RF Modem automatically selects "self-powered mode" if power is available on the
power connector when the RF modem is connected to USB. Do not disconnect the external power
source without first disconnecting the XCite-PKG-U RF Modem from the USB connector.
Table
1
‐
02. USB
Signals
and
their
implementations
on
the
XCite
‐
PKG
‐
U
RF
Modem
USB Pin
USB Name
Description
Implementation
1
VBUS
Power
Power RF Modem
2
D-
Transmitted & Received Data
Transmit data to and from the RF Modem
3
D+
Transmitted & Received Data
Transmit data to and from the RF Modem
4
GND
Ground Signal
Ground
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