A09-HSM-7 Digi International/Maxstream, A09-HSM-7 Datasheet - Page 31
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A09-HSM-7
Manufacturer Part Number
A09-HSM-7
Description
ANT 900MHZ 7" STRAIGHT W/RPSMA
Manufacturer
Digi International/Maxstream
Specifications of A09-HSM-7
Antenna Type
Whip: 1/2 Wave
Number Of Bands
1
Frequency
915MHz (902MHz ~ 928MHz)
Vswr
2
Gain
2dBi
Termination
RP-SMA
Mounting Type
Connector
Height (max)
7.0" (177.8mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
9XTend™ OEM RF Module ‐ Product Manual v2.x4x [2007.01.04]
NB (Parity) Command
PB (Polling Begin Address) Command
PD (Minimum Polling Delay) Command
PE (Polling End Address) Command
<Serial Interfacing> The NB command is used to
select/read the parity settings of the RF module
for UART communications.
<Networking & Security> PB command is used to
set/read the module’s Polling Begin Address - the
first address polled Polling Mode is enabled.
Polling Operations: The ‘Polling Base’ (MD = 3)
cycles through a sequential range of addresses,
polling each ‘Polling Remote’ (MD = 4). The base
then waits for a response & proceeds to the next
‘Polling Remote’. Each ‘Polling Remote’ responds
by sending the data from the Data In buffer fol-
lowing the RB & RO parameters. When there is no
eligible data to send, the ‘Polling Remote’ will not respond. The ‘Polling Base’ will move to the next
address in the polling sequence after a short delay.
<Networking & Security> The PD command is
used to set/read Polling Delay (Base, MD=3) or
Polling Timeout (Remote, MD=4).
Polling Delay (Base) is the time between polling
cycles. The Polling Base will start the polling cycle
after sending the first poll. After the polling cycle
has completed, the timer is restarted.
Polling Timeout (Remote) is the amount of time
the remote unit will hold data from the serial port
before discarding it. Data entered within the PD
time of the poll is transmitted and not discarded.
<Networking & Security> PE command is used to
set/read the module’s Polling End Address - the
last address polled when Polling Mode is enabled.
Polling Operations: The ‘Polling Base’ (MD = 3)
cycles through a sequential range of addresses,
polling each ‘Polling Remote’ (MD = 4). The base
then waits for a response & proceeds to the next
‘Polling Remote’. Each ‘Polling Remote’ responds
by sending data from the DI buffer following the
RB & RO parameters. When there is no eligible
data to send, the ‘Polling Remote’ will not respond. The ‘Polling Base’ will move to the next address
in the polling sequence after a short delay.
© 2007 MaxStream, Inc.
AT Command: ATNB
Binary Command: 0x23 (35 decimal)
Parameter Range: 0 - 4
Default Parameter Value: 0
Number of bytes returned: 1
AT Command: ATPB
Binary Command: 0x45 (69 decimal)
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Minimum Firmware Version Required: 2.x20
Related Commands: MD (RF Mode), PE (Polling
End Address), PD (Minimum Polling Delay)
AT Command: ATPD
Binary Command: 0x47 (71 decimal)
Parameter Range: 0 - 0xFFFF
(Base: [x 1ms], Remote: [x 10ms])
Default Parameter Value: 0
Number of bytes returned: 2
Minimum Firmware Version Required: 2.x20
Related Commands: MD (RF Mode), PB (Polling
Begin Address), PE (Polling End Address)
AT Command: ATPE
Binary Command: 0x46 (70 decimal)
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Minimum Firmware Version Required: 2.x20
Related Commands: MD (RF Mode), PB (Polling
Begin Address), PD (Minimum Polling Delay)
Parameter
Chapter 3 ‐ RF Module Configuration
0
1
2
3
4
8-bit (no parity or
7-bit (any parity)
Configuration
8-bit space
8-bit mark
8-bit even
8-bit odd
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