MT9234ZPX-UPCI-CP Multi-Tech Systems, MT9234ZPX-UPCI-CP Datasheet - Page 21

• Manufacturer Part Number: MT9234ZPX-UPCI-CP
• Description: MODEM V.92 DATA/FAX/VOICE WORLD
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® ZPXr

Specifications of MT9234ZPX-UPCI-CP

• Data Format: V.92
• Baud Rates: -
• Interface: Parallel
• Voltage - Supply: 3.3V, 5V
• Mounting Type: Socket
• Package / Case: 6.0" L x 4.8" W x 0.7" H (152mm x 122mm x 18mm)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

%C
Description:
Syntax:
Values:
Default:
Result Codes:
%DC
Description:
Syntax:
Values:
Default:
%DT
Description:
Syntax:
Values:
Default:
%E
Description:
Syntax:
Values:
Default:
Result Codes:
%H
Description:
Syntax:
Values:
Default:
Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434H)
Data Compression Control
Use this command to enable or disable data compression. This command enables or
disables V.44, V.42 bis, and MNP class 5 data compression. The command
overwrites the current status of the +DCS command. The command is also
overwritten by changes made by the +DCS command. On-line changes do not take
effect until a disconnect occurs.
AT%C<value>
0
1
1
OK if <value> = 0, 1.
ERROR if <value> ≠ 0, 1.
AT Command Control
Use this command to set whether or not the modem will respond to AT commands.
Note:
AT%DC<value>
0
1
0
Set AT Command Mode Timer
Sets the length of time that the command mode will be disabled when set for %DC1
(the modem ignores AT commands).
Note:
AT%DT<value>
0-255 in 1 second increments
0
Fallback and Fall Forward Control
This command provides the option for the modem to automatically monitor line
quality, to fall back when line quality is insufficient, and to fall forward when line
quality is sufficient.
AT%E<value>
0
1
2
2
OK if <value> = 0, 1, 2.
ERROR if <value> ≠ 0, 1, 2.
Set Callback Security – Direct Connect Enable
Sets Callback Security to normal operation or to direct connect.
Note:
AT%H<value>
0
1
0
Disable V.42bis/MNP 5. No data compression.
Enable V.42bis/MNP 5. Data compression enabled.
This command does not work with parallel, USB, PCI, PCIe.
This command does not work with parallel, USB, PCI, PCIe.
This command does not work with parallel, USB, PCI, PCIe.
Disable fallback and fall forward.
Enable fallback and disable fall forward.
Enable fallback and fall forward.
The modem responds to AT commands. The modem will respond to
AT%DC for 10 seconds after it is turned on.
The modem ignores AT commands.
Sets callback security to normal operation.
All callback security calls will be direct connect regardless of whether the
password or phone number has the - character.
Chapter 1 – AT Commands, S-Registers, and Result Codes
21