X09-009PKI-RA Digi International, X09-009PKI-RA Datasheet - Page 12

• Manufacturer Part Number: X09-009PKI-RA
• Description: MOD RF 900MHZ 19.2K RS232/485 IN
• Manufacturer: Digi International
• Series: XStream™r

Specifications of X09-009PKI-RA

• Function: Transceiver, FHSS
• Modulation Or Protocol: FHSS, FSK
• Frequency: 900MHz
• Applications: ISM
• Interface: RS-232, RS-485
• Sensitivity: -110dBm
• Power - Output: 20dBm (100mW)
• Data Rate - Maximum: 10 kbps
• Voltage - Supply: 7 V ~ 18 V
• Package / Case: Module
• Wireless Frequency: 900 MHz
• Interface Type: SMA
• Modulation: FHSS
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4542190

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)
12