XTIB-R Digi International/Maxstream, XTIB-R Datasheet - Page 30

• 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]
MK (Address Mask) Command
MT (Multi-transmit) Command
MY (Source Address) Command
<Networking & Security> The MK command is
used to set/read the Address Mask of a module.
All RF data packets contain the Destination
Address of the TX (transmitting) module. When a
packet is received, the TX module Destination
Address is logically "ANDed" (bitwise) with the
Address Mask of the RX (receiving) module. The
resulting value must match the Destination
Address or Address Mask of the RX module for the
packet to be received and sent out the RX mod-
ule's DO (Data Out) pin. If the "ANDed" value does not match the Destination Address or Address
Mask of the RX module, the packet is discarded.
Sniffer Mode (when MK = 0): ACK requests are ignored and every RX (receive) frame is sent to
the UART, without regard for repeated frames.
All “0” values are treated as irrelevant values and ignored.
Refer to the ‘Addressing’ section [p44] for more information.
<Networking & Security> The MT command is
used to enabled multiple transmissions of RF data
packets. When Multi-transmit Mode is enabled
(MT > 0), packets do not request an ACK
(acknowledgement) from the receiving RF mod-
ule(s). MT takes precedence over RR, so if both
MT and RR are non-zero, then MT+1 packets will
be sent (with no ACK requests).
When a receiving module receives a packet with
remaining forced retransmissions, it calculates
the length of the packet and inhibits transmission
for the amount of time required for all retransmissions. Thereafter, a random number of delay
slots are inserted between 0 and RN before transmission is allowed from the receiving module(s).
This prevents all listening modules from transmitting at once upon conclusion of a multiple trans-
mission event (when RN > 0).
NOTE: The actual number of forced transmissions is the parameter value plus one. For example, if
MT = 1, two transmissions of each packet will be sent.
Refer to the ‘Multi-transmit Mode’ section [p46] for more information.
<Networking & Security> The MY command is
used to set/read the Source Address of the RF
module.
Refer to the ‘Addressing’ section [p44] for more
information.
© 2007 MaxStream, Inc.
AT Command: ATMK
Binary Command: 0x12 (18 decimal)
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0xFFFF (65535d)
Number of bytes returned: 2
Related Commands: DT (Destination Address),
HP (Hopping Channel), ID (Modem VID), MY
(Source Address)
AT Command: ATMT
Binary Command: 0x3D (61 decimal)
Parameter Range: 0 - 0xFF
Default Parameter Value:0 (no forced
retransmissions)
Number of bytes returned: 1
Related Commands: Networking (DT, MK, MY,
RN, TT), Serial Interfacing (BR, PK, RB, RO), RF
Interfacing (FS)
AT Command: ATMY
Binary Command: 0x2A (42 decimal)
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0xFFFF (Disabled -
DT (Destination Address) parameter serves as
both source and destination address.)
Number of bytes returned: 2
Related Commands: DT (Destination Address),
HP (Hopping Channel), ID (Modem VID), MK
(Address Mask)
Chapter 3 ‐ RF Module Configuration
30