X24-019PKC-RA Digi International/Maxstream, X24-019PKC-RA Datasheet - Page 12
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X24-019PKC-RA
Manufacturer Part Number
X24-019PKC-RA
Description
MOD RF 2.4GHZ 19.2K RS232/485
Manufacturer
Digi International/Maxstream
Series
XStream™r
Specifications of X24-019PKC-RA
Function
Transceiver, Modem
Modulation Or Protocol
FHSS
Frequency
2.4GHz ~ 2.4835GHz
Applications
General Purpose
Interface
RS-232, RS-485
Sensitivity
-102dBm
Power - Output
17dBm (50mW)
Data Rate - Maximum
20 kbps
Voltage - Supply
5V
Package / Case
Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
3. RF Modem Operation
© 2006 MaxStream, Inc. Confidential & Proprietary
XStream‐PKG‐R™ RS‐232/485 RF Modem – Product Manual v5.x00 [2006.02.24]
3.1. Serial Communications
3.1.1. RS-232 and RS-485/422 Data Flow
3.1.2. Host and RF Modem I/O Settings
Devices that have a UART interface can connect directly through the pins of the XStream Modem
as is shown in the figure below.
Figure 3.1. System Data Flow Diagram in a UART‐interfaced environment
Serial communications between a host and an XStream RF Modem are dependent upon having
matching baud rate, parity, stop bit & number of data bits settings. Failure to enter the modem
into AT Command Mode is most commonly due to baud rate mismatch. Refer to the table below
to ensure host serial port settings match those of the modem.
Table 3.1. Parameter values critical to serial communications between the RF Modem and host
Parameter Setting
Baud (Serial Data Rate)
Number of Data Bits
Parity
Number of Stop Bits
Both the XStream RF Modem and host (PC) settings can be viewed and adjusted using
MaxStream’s proprietary X-CTU Software. Use the “PC Settings” tab to configure host settings.
Use the “Terminal” or “Modem Configuration” tabs to configure the RF Modem settings. Refer to
the RF Modem Configuration sections for more information [p21].
(Low‐asserted signals distinguished with horizontal line over signal name.)
XStream RF Modem Default Parameter Value
9600 bps or 19200 baud (Factory-set RF data rates)
8
None
1
(NB parameter = 0)
(NB parameter = 0)
(NB parameter = 0)
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