Product manual
XStream‐PKG‐R™RS‐232/485RFModem–ProductManualv4.2B
©2005MaxStream,Inc.Confidential&Proprietary 25
CT (Command Mode Timeout) Command
<Command Mode Options> CT Command sets
the amount of time before AT Command Mode
terminates automatically. After a CT time of
inactivity, the modem exits AT Command Mode
and returns to Idle Mode. AT Command Mode can
also be exited manually using CN (Exit AT
Command Mode) Command.
AT Command: ATCT
Binary Command: 0x06 (6 decimal)
Parameter Range: 0x02 – 0xFFFF
[x 100 milliseconds]
Default Parameter Value: 0xC8 (200 decimal,
20 seconds)
Number of bytes returned: 2
DT (Destination Address) Command
<Networking> DT Command is used to set the
networking address of an XStream Modem.
XStream Modems uses three network layers –
Vendor Identification Number (ATID), Channels
(ATHP), and Destination Addresses (ATDT). DT
Command assigns an address to a modem that
enables it to communicate only with other
modems having the same addresses. All modems
that share the same Destination Address can
communicate freely with each other. Modems in
the same network with a different Destination Address (than that of the transmitter) will listen to
all transmissions to stay synchronized, but will not send any of the data out their serial ports.
AT Command: ATDT
Binary Command: 0x00
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: HP (Hopping Channel), ID
(Modem VID), MK (Address Mask)
E0 (Echo Off) Command
<Command Mode Options> E0 Command turns
off character echo in AT Command Mode. By
default, echo is off.
AT Command: ATE0
Binary Command: 0x0A (10 decimal)
E1 (Echo On) Command
<Command Mode Options> E1 Command turns
on the echo in AT Command Mode. Each typed
character will be echoed back to the terminal
when ATE1 is active. E0 is the default.
AT Command: ATE1
Binary Command: 0x0B (11 decimal)
ER (Receive Error Count) Command
<Diagnostics> Set/Read the receive-error. The
error-count records the number of packets
partially received then aborted on a reception
error. This value returns to 0 after a reset and is
not non-volatile (Value does not persist in the
modem’s memory after a power-up sequence).
Once the “Receive Error Count” reaches its
maximum value (up to 0xFFFF), it remains at its
maximum count value until the maximum count
value is explicitly changed or the modem is reset.
AT Command: ATER
Binary Command: 0x0F (15 decimal)
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: GD (Receive Good Count)
FH (Force Wake-up Initializer) Command
<Sleep (Low Power)> FH Command is used to
force a Wake-up Initializer to be sent on the next
transmit. WR (Write) Command does not need to
be issued with FH Command.
AT Command: ATFH
Binary Command: 0x0D (13 decimal)
Use only with cyclic sleep modes active on remote modems.