MT9234ZPX-UPCI-CP Multi-Tech Systems, MT9234ZPX-UPCI-CP Datasheet - Page 26

• 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

+EB
Description:
Syntax:
<break selection> Values:
<default_length> Values:
Reports:
+EFCS
Description:
Syntax:
Value:
Reports:
+ER
Description:
Syntax:
Values:
Reports:
Result Codes:
Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434H)
Break Handling in Error Control Operation
This extended-format compound parameter controls the break handling in V.42
operation. It accepts three numeric subparameters.
AT+EB=<break_selection>,<default_length>
0
1
2
3
10 ms to 90 ms Specify break length.
+EB=? Reports supported options.
+EB?
32-bit Frame Check Sequence
This extended-format numeric parameter controls the use of the 16-bit or 32-bit frame
check sequence (FCS) option in V.42.
AT+EFCS=<value>
0
+EFCS?
+EFCS=? Reports supported options.
Error Control Report
Use this command to enable or disable the error control report.
AT+ER<value>
+ER0
+ER1
+ER?
+ER=? Reports supported options.
+ER <type> The +ER <type> reported is the current (negotiated or renegotiated)
+ER: NONE
+ER: LAPM
+ER: ALT
OK
ERROR
Sets the 32-bit frame check sequence to a 16-bit frame check sequence.
Ignore break. Default.
Nonexpedited, nondestructive.
Expedited, nondestructive.
Expedited, destructive.
Reports current or selected options.
Error control reporting disabled (no +ER intermediate result code
transmitted). Default.
Error control reporting enabled (+ER intermediate result code transmitted).
Reports current or selected options.
modem-modem error control type. If enabled, the intermediate result code is
transmitted at the point during error control negotiation (handshaking) at
which the modem has determined which error control protocol will be used (if
any), before the final result code (e.g., CONNECT) is transmitted.
Specifically, the +ER intermediate result code is issued after the modulation
report (+MCR and +MRR) and before the data compression report (+DR).
Reports current or selected options.
Data compression not in use.
V.42 LAPM protocol is in use.
V.42 alternative protocol is in use.
if <value> = 0, 1.
if <value> ≠ 0, 1.
Chapter 1 – AT Commands, S-Registers, and Result Codes
26