XStream
‐
PKG
‐
T™
Telephone
RF
Modem
–
Product
Manual
v5.x00
[2006.02.24]
HV (Hardware Version) Command
<Diagnostic> Read modem hardware version
number.
AT Command: ATHV
Parameter Range: 0 – 0xFFFF [read-only]
Number of bytes returned: 2
Minimum Firmware Version Required: 4.30
ID (Modem VID) Command
AT Command: ATID
Binary Command: 0x27 (39 decimal)
Parameter Range: 0x10 - 0x7FFFF
(user-settable)
0x8000
–
0xFFFF
[read-only]
Number of bytes returned: 2
Minimum Firmware Version Required: 4.30
<Networking> Set/Read the “Vendor
Identification Number”. Only modems with
matching IDs can communicate with each other.
Modules with non-matching VIDs will not receive
unintended data transmission.
IU (DI2, DI3 Update Timer) Command
AT Command: ATIU
Binary Command: 0x3B (59 decimal)
Parameter Range: 0 - 0xFFFF [x 100 ms]
Default Parameter Value: 0x0A (10 decimal)
Number of bytes returned: 2
Related Commands: BK (Serial Break Passing),
BO (Serial Break Timeout), CO (DO3 Timeout),
DR (Disconnect), RT (DI2 Configuration), TO
(DO2 Timeout)
Minimum Firmware Version Required: 4.30
<Serial Interfacing> The status of DI2, DI3 and
Break is transmitted at the interval specified by
IU - and whenever there is a transition as well. A
setting of Zero disables periodic update. DI2 or
DI3 passing must be enabled for the update to
take place.
LH (Wake-up Initializer Timer) Command
AT Command: ATLH
Binary Command: 0x0C (12 decimal)
<Sleep (Low Power)> LH Command adjusts the
duration of time for which the wake-up initializer
is sent. When receiving modules are put into
Cyclic Sleep Mode, they power-down after a
period of inactivity [specified by ST (Time before
Sleep) Command] and will periodically awaken
and listen for transmitted data. In order for the
receiving modules to remain awake, they must
detect ~35ms of the wake-up initializer.
Parameter Range: 0 – 0xFF
[x
100
milliseconds]
Default Parameter Value: 1
Number of bytes returned: 1
Related Commands: HT (Time before Wake-up
Initializer), SM (Sleep Mode), ST (Time before
Sleep)
LH Command must be used whenever a receiver
is operating in Cyclic Sleep Mode. This lengthens the Wake-up Initializer to a specific amount of
time (in tenths of a second). The Wake-up Initializer Time must be longer than the cyclic sleep
time that is determined by SM (Sleep Mode) Command. If the wake-up initializer time were less
than the Cyclic Sleep interval, the connection would be at risk of missing the wake-up initializer
transmission.
©
2006
MaxStream,
Inc.,
Confidential
and
Proprietary
52
