XC09-038PKC-UA Digi International/Maxstream, XC09-038PKC-UA Datasheet - Page 11
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XC09-038PKC-UA
Manufacturer Part Number
XC09-038PKC-UA
Description
MODEM RF 900MHZ USB 38.4K W/ACC
Manufacturer
Digi International/Maxstream
Series
9XCite™r
Datasheet
1.XC09-009PKC-U.pdf
(35 pages)
Specifications of XC09-038PKC-UA
Frequency
900MHz
Data Rate - Maximum
38.4kbps
Modulation Or Protocol
FHSS, FSK
Power - Output
6dBm
Sensitivity
-104dBm
Voltage - Supply
2.85 V ~ 5.5 V
Current - Receiving
45mA
Current - Transmitting
55mA
Data Interface
Connector, USB
Antenna Connector
RP-SMA
Operating Temperature
0°C ~ 70°C
Package / Case
Module
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Applications
-
Memory Size
-
9XCite‐PKG‐U™ USB RF Modem – Product Manual v2.1 [2007.01.04]
2.3.3. Receive Mode
If a modem detects RF transmitted data while operating in Idle Mode, it transitions into Receive
Mode to start receiving packets. Once a packet is received, it goes through the receiving-end of a
CRC (cyclic redundancy check) to ensure that the data was transmitted without error. If the CRC
data bits on the incoming packet are invalid, the packet is discarded. If the CRC is valid, the packet
is placed the DO Buffer. This process is shown in the figure below:
Figure 2‐04. Receive Mode Data Flow
The modem returns to Idle Mode after valid data is no longer detected or once an error is detected
in the received data. If serial data-to-transmit is stored in the DI buffer while the modem is giving
precedence to Receive Mode, the data will be transmitted after the modem finishes receiving data
and returns to Idle Mode.
© 2007 MaxStream, Inc.
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