XT09-SI-MESH Digi International, XT09-SI-MESH Datasheet - Page 41

• Manufacturer Part Number: XT09-SI-MESH
• Description: MODULE RF 900MHZ 1W 115K W/RPSMA
• Manufacturer: Digi International

Specifications of XT09-SI-MESH

• Frequency: 900MHz
• Modulation Or Protocol: FHSS, FSK
• Power - Output: 1W
• Sensitivity: -100dBm
• Voltage - Supply: 2.8 V ~ 5.5 V
• Current - Receiving: 80mA
• Antenna Connector: RP-SMA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Memory Size: -
• Data Interface: -
• Data Rate - Maximum: -
• Current - Transmitting: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 602-1183

XTend™ RF Module ‐ Product Manual v2.x6x
MSB (most significant byte) first,
LSB (least significant) last
Source Address (Bytes 5-6)
Identifies the UART data frame for the host to
correlate with a subsequent ACK (acknowledgement).
Setting Frame ID to ‘0' will disable response frame.
TX (Transmit) Request: 16-bit address
TX (Transmit) Status
RX (Receive) Packet: 16-bit address
Start Delimiter
API Identifier Value: 0x01
A TX Request message will cause the module to send RF Data as an RF Packet.
Figure 3‐5.
Figure 3‐6.
API Identifier Value: 0x89
When a TX Request is completed, the module sends a TX Status message. This message will indi-
cate if the packet was transmitted successfully or if there was a failure.
Figure 3‐7.
NOTE: “STATUS = 1” occurs when all retries are expired and no ACK is received.
“STATUS = 3” occurs when a packet is purged due to a ‘Polled Remote’ not receiving a poll.
API Identifier Value: 0x81
When the module receives an RF packet, it is sent out the UART using this message type.
Figure 3‐8.
Start Delimiter
0x7E
* Length [Bytes] = API Identifier + Frame ID + Option + RF Data
** “R” value was arbitrarily selected
© 2010 Digi Internatonal, Inc.
Byte 1
0x7E
Start Delimiter
Frame ID (Byte 5)
0x7E
0x00 0x08
TX Packet (16‐bit address) Frames
Example: TX Packet API Frames
TX Status Frames
RX Packet (16‐bit address) Frames
MSB
Bytes 2-3
Received Signal Strength Indicator -
Hexadecimal equivalent of (-dBm) value.
(For example: If RX signal strength = -40
dBm, “0x28” (40 decimal) is returned)
Start Delimiter
Length*
Length
0x7E
MSB
LSB
Identifies UART data frame being reported.
Note: If Frame ID = 0 in the TX Request, no
AT Command Response will be given.
Length
API Identifier
0x81
LSB
API Identifier
RSSI (Byte 7)
API Identifier
Byte 4
API-specific Structure
0x01
0x01
MSB
Length
Frame ID (Byte 5)
API-specific Structure
Frame Data
LSB
Destination Address (Bytes 6-7)
Identifier-specific Data
MSB first, LSB last.
Broadcast = 0xFFFF
Frame ID**
Frame Data
API Identifier
R (0x52)
Byte 5
cmdData
0x89
Identifier-specific Data
API-specific Structure
cmdData
Destination Address
Frame Data
Checksum
1 Byte
Bytes 6-7
bit 0 = ACK
bit 1 = Indicate broadcast
bits 2-7 [reserved]
0xFFFF
Identifier-specific Data
Checksum
1 Byte
cmdData
Options (Byte 8)
0 = Success
1 = No ACK (Acknowledgement) received
0 = Standard
1 = Disable ACK
Options (Byte 8)
Byte 8
Option
0x00
Checksum
1 Byte
1 (0x31) 2 (0x32) 3 (0x33)
Status (Byte 6)
Up to 2048 Bytes per
packet
Bytes 9-11
RF Data
Up to 2048 Bytes per packet
RF Data (Byte(s) 9-n)
RF Data (Byte(s) 9-n)
Checksum
Byte 12
0x18
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