A24-HASM-450 Digi International/Maxstream, A24-HASM-450 Datasheet - Page 28

• Manufacturer Part Number: A24-HASM-450
• Description: ANT 2.4GHZ DIPOLE HALF-WAVE
• Manufacturer: Digi International/Maxstream
• Series: XPressr

Specifications of A24-HASM-450

• Antenna Type: Whip: 1/2 Wave, Swivel, Tilt (Right Angle)
• Number Of Bands: 1
• Frequency: 2.4GHz
• Vswr: 2
• Gain: 2.1dBi
• Termination: RP-SMA
• Mounting Type: Connector
• Height (max): 4.35" (110.5mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 70000340; Q2724499B

XBee/XBee‐PRO ZigBee OEM RF Modules v1.x1x [2007.06.01]
Sampling A/D and Digital Input Lines
See the command table for more information. Pullup resistors for each digital input can be enabled
using the PR command.
The IS command can be used to read the current value of all enabled A/D and digital input lines.
The format for the IS response is shown below. At the time, only one sample set is supported in
this frame.
The AT firmware returns a carriage return delimited list containing the above-listed fields. The API
firmware returns an AT command response API frame with the IO data included in the command
data portion of the packet.
To convert the A/D reading to mV, do the following:
AD(mV)= (ADIO reading/0x3FF)*1200mV
The reading in the sample frame represent voltage inputs of 1144.9 and 342.5mV for ADIO0 and
ADIO1 respectively.
1
2
1
Var
0x01\r
0x0C0C\r
0x03\r
0x0408\r
0x03D0\r
0x0124\r
© 2007 Digi International, Inc.
Bytes
Example
Sample sets in packet
Digital Channel Mask
Analog Channel Mask
Sampled Data Set
[1 sample set]
[Digital Inputs: DIO 2, 3, 10, 11 low]
[Analog Inputs: ADOP 0, 1]
[Digital input states: DIO 3, 10 high, DIO 2, 11 low]
[Analog input ADIO 0= 0x3D0]
[Analog input ADIO 1=0x120]
Name
Sample AT Response
Number of sample sets in the packet
Each bit in the digital channel mask corresponds to one digital IO line. The
bits, from LSB to MSB, correspond to DOI0-DOI5 on the module.
For example a digital channel mask of 0x002F means DIO0,1,2,3, and 5 are
enabled as digital input lines.
Each bit in the analog channel mask corresponds to one analog channel. The
bits from LSB to MSB correspond to AIN0-AIN7 on the module.
For example, if the analog channel mask is 0x06, AINI and AIN3 are enabled
as analog input lines.
A sample set consisting of 1 sample for each enabled ADC and/or DIO
channel. If any digital input lines are enabled, the first two bytes indicate the
state of all enabled digital input lines. Each bit in these two bytes corresponds
to one digital IO line, similar to the way each bit in the diglossia channel mask
corresponds. Note: only the digital input line that are enabled in the detail
channel mask have valid readings. Channels that are not enabled as digital
input lines will return a 0 in the sampled data set. If no pins are configured as
digital inputs, these 2 bytes will be omitted.
Following the digital input data, if any, each enabled analog channel will return
2 bytes (10bits). The analog data is scaled such that 0 represents 0V, and
0x3FF=1.2V. The analog input lines cannot measure more than 1.2V.
Information for each enabled analog channel is returned in order, starting with
AIN0 and finishing with AIN4. Only enabled analog input channels will return
data.
Description
Chapter 4 ‐ RF Module Configuration
28