Mode Setting Commands (continued)
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Command
Function
________________________________________________________
W
Stores configuration into non-volatile memory
Xn
Enables or disables entry into data mode based upon the
status of carrier detect (CD) at the composite port. If
enabled, the Model 3022 will enter data mode when CD is
raised, and exit data mode to go back to offline command
mode when CD goes off. If disabled, the status of CD will
not effect whether or not the Model 3022 enters data
mode.
*n = 0, CD activation of data mode disabled
n = 1, CD activation of data mode enabled
Yn
This command has two concurrent functions: 1) Causes
local Model 3022 to enter PassThru Mode. 2) Enables or
disables multiplexer operation. If the AT command to
disable is issued through channel 1, the Model 3022
logically connects channel 1 to the communication link and
disables channel 2. If the AT command to disable is
issued through channel 2, the Model 3022 logically
connects channel 2 to the communication link and disables
channel 1. By disabling the multiplexer operation, you use
the attached modem or serial device for any single channel
purpose without physically disconnecting the Model 3022.
You only issue this to the local Model 3022.
n = 0, disable multiplexer
(Note: This option will not be stored in non-volatile
memory. Multiplexer operation will be enabled again if
AT[Z or \\\ is entered, or upon power up reset
Z
Causes a software reset with all Model 3022 modes and
channel configurations set to
previously stored values.
The Model 3022 will then enter offline command mode.
(Note: The user must wait approximately 5 seconds after
receiving the “OK” response before entering new
commands.)
5.3.2 CHANNEL CONFIGURATION COMMANDS
The following commands change the configuration of the channel
that you select with the Cn command. The Cn command must be in the
command line before a channel configuration command, or the Model
3022 rejects the configuration command. The letter “n” that follows the
command letter represents a numeric value. The text describes the
valid choices, where the first choice (*) is the initial selection after a
software reset T or Z command.
____________________________________________________
Command
Function
________________________________________________________
Bn
Selects baud rate for the selected channel.
*n = 0, auto select (applies only to sub-channels)
see note†
n = 1, 110 bps (applies only to sub-channels)
n = 2, 300 bps (applies only to sub-channels)
n = 3, reserved for future use
n = 4, 1200 bps
n = 5, 2400 bps
n = 6, 4800 bps
n = 7, 9600 bps
n = 8, 19,200 bps
n = 9, 38,400 bps
n = 10, reserved for future use
n = 11, reserved for future use
†
note: sub-channel 1 factory defaults to auto-select;
sub-channel 2 factory defaults to 19.2 Kbps.
En
Determines whether the local Model 3022 echoes
the data received in the command mode back to its
sub-channel 1 or 2. (Note: Each sub-channel can have its
own echo option)
*n = 1, echo on
n = 0, echo off
Fn
Selects the method of flow control used between the
selected Model 3022 port and the peripheral device.
n = 0, none
*n = 1, RTS/CTS
n = 2, XON / XOFF
n = 3, Both methods
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