XIB-R Digi International/Maxstream, XIB-R Datasheet - Page 23

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

Specifications of XIB-R

• Accessory Type: Interface Board
• For Use With/related Products: XStream and Xcite Radios
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q2231853

9XCite™ OEM RF Module – Product Manual v2.1 [2007.01.04]
FH (Force Wake-up Initializer) Command
FL (Software Flow Control) Parameter
HP (Channel) Command
<AT Command: Sleep (Low Power)> FH Command is used to force a Wake-up Initializer to be sent
on the next transmission. WR (Write) Command does not need to be issued with FH Command.
Use only with cyclic sleep modes active on remote modems.
AT Command: FH
<Non-AT Settable Parameter: Serial Interfacing>
FL Parameter is used to adjust serial flow control.
Hardware flow control is implemented with the
XCite Radio Modem as the CTS pin (which regu-
lates when serial data can be transferred to the
radio modem). FL Parameter can be used to allow
software flow control to also be enabled. The XON
character to use is 0x11 ("17" decimal). The XOFF
character to use is 0x13 ("19" decimal).
<AT Command: Networking> HP Command is
used to set the radio modem channel number. A
channel is one of three layers of addressing avail-
able to the XCite Radio Modem. In order for radio
modems to communicate with each other, the
modems must have the same channel number
since each channel uses a different hopping
sequence or single frequency. Different channels
can be used to prevent modems in one network
from listening to transmissions of another.
The XCite Radio Modem can operate both in Hop-
ping and Single Frequency Channel Modes.
Switching between Single Channel and Hopping
Modes can only be done only using the "Function
Set" dropdown list on the "Modem Configuration"
tab of the X-CTU Software
A "Hopping Channel" is a channel comprised of a
group of frequencies. When in Hopping Channel
Mode, the radio modem hops between the fre-
quencies them when transmitting data. This
option utilizes FHSS (Frequency Hopping Spread
Spectrum) technology. This option helps bolster
security in wireless data communications and also
makes the system less prone to interference.
The 25 center frequencies available in Single Fre-
quency Channel Mode are spaced 300 KHz apart.
Since each channel occupies a 500 KHz band-
width, adjacent channels therefore overlap. If
modems are used in the same vicinity but on dif-
ferent channels, the channels used should occupy
every other channel at a minimum separation. If
channels used on different radio modems can be
separated more they should be. This will provide
for more isolation and less interference.
© 2007 MaxStream, Inc.
Parameter Ranges: 0 - 1
Default Parameter Value: 0
Number of bytes returned: 1
AT Command: ATHP
Parameter Range (Hopping Mode): 0 - 6
Parameter Range (Single Frequency Mode):
0 - 0x18 [refer to rows below]
Default Parameter Value: 0
Number of bytes returned: 1
Parameter
Parameter
0x0D
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x0E
0x0F
0
1
Use Software Flow
No Software Flow
Frequency (MHz)
Configuration
Control
Control
910.5
910.8
911.1
911.4
911.7
912.0
912.3
912.6
912.9
913.2
913.5
913.8
914.1
914.4
914.7
915.0
915.3
915.6
915.9
916.2
916.5
916.8
917.1
917.4
917.7
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