XTIB-R Digi International/Maxstream, XTIB-R Datasheet - Page 42

• Manufacturer Part Number: XTIB-R
• Description: BOARD INTERFACE 1W RS232/485
• Manufacturer: Digi International/Maxstream

Specifications of XTIB-R

• Accessory Type: Interface Board
• For Use With/related Products: XTend Radios
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q2172356

9XTend™ OEM RF Module ‐ Product Manual v2.x4x [2007.01.04]
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.
Start Delimiter
* Length [Bytes] = API Identifier + Frame ID + Destination Address + Option + RF Data
** “R” value was arbitrarily selected
Byte 1
0x7E
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.
0x7E
© 2007 MaxStream, Inc.
Start Delimiter
Frame ID (Byte 5)
0x7E
0x00 0x08
Bytes 2-3
Length*
TX Packet (16‐bit address) Frames
Example: TX Packet API Frames
TX Status Frames
RX Packet (16‐bit address) Frames
MSB
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
0x7E
MSB
API Identifier
LSB
Identifies UART data frame being reported.
Note: If Frame ID = 0 in the TX Request, no
AT Command Response will be given.
Length
Byte 4
API Identifier
0x01
0x81
LSB
RSSI (Byte 7)
API Identifier
API-specific Structure
0x01
MSB
Frame ID**
R (0x52)
Length
Frame ID (Byte 5)
API-specific Structure
Frame Data
Byte 5
LSB
Destination Address (Bytes 6-7)
Identifier-specific Data
MSB first, LSB last.
Broadcast = 0xFFFF
Frame Data
API Identifier
cmdData
0x89
Identifier-specific Data
Destination Address
API-specific Structure
cmdData
Bytes 6-7
0xFFFF
Frame Data
Checksum
1 Byte
bit 0 = ACK
bit 1 = Indicate broadcast
bits 2-7 [reserved]
Identifier-specific Data
Checksum
1 Byte
cmdData
Options (Byte 8)
Byte 8
Option
0x00
0 = Success
1 = No ACK (Acknowledgement) received
0 = Standard
1 = Disable ACK
Options (Byte 8)
Checksum
1 Byte
1 (0x31) 2 (0x32) 3 (0x33)
Chapter 3 ‐ RF Module Configuration
Status (Byte 6)
Bytes 9-11
RF Data
Up to 2048 Bytes per
packet
Up to 2048 Bytes per packet
RF Data (Byte(s) 9-n)
RF Data (Byte(s) 9-n)
Checksum
Byte 12
0x18
42