Motorola SM56, Quick Start User Manual

Page: 27 / 48

AT Cmd Function Mode Value Setting
+ER Error Control Reporting
DFV 0 Disabled
1 Enabled
+ES Originate Request EC Mode
DFV 0 Direct Mode
1 Normal Mode
2 LAPM Only
3 LAPM or MNP (V42 Detection Phase)
4 MNP Only
6 Initiate Synchronous Access Mode when connected
Originate Fallback EC Mode
DFV 0 EC Optional, fallback to Normal Mode
1 EC Optional, fallback to Direct Mode
2 EC Required (LAPM or MNP)
3 EC Required (LAPM Only)
4 EC Required (MNP Only)
Answer Fallback EC Mode
DFV 0 Direct Mode
1 Normal Mode
2 EC Optional, fallback to Normal Mode
3 EC Optional, fallback to Direct Mode
+ES
4 EC Required (LAPM or MNP)
(cont.)
5 EC Required (LAPM Only)
6 EC Required (MNP Only)
8 Initiate Synchronous Access Mode when connected
+ESA Transparent Sub-Mode Idle
DFV 0 DCE transmits 8 bit SYN sequence on idle.
Framed Sub-Mode Idle
DFV 0 DCE transmits HDLC flags on idle.
Framed Sub-Mode Underrun
DFV 0 DCE transmits abort on underrun in middle of frame.
or Overrun
1 DCE transmits a flag on underrun in middle of frame,
notifies DTE of underrun or overrun.
Half Duplex Control
N/A - Not Used
CRC Type
DFV 0 CRC generation and checking is disabled
1 In framed sub-Mode 16 bit CRC is generated by the DCE
in Tx direction and checked by the DCE in RX direction.
NRZI Control
DFV 0 NRZI encoding and decoding is disabled
+ETBM Disc Buff Dly - Pending TD
DFV 0 Discard buffered data and disconnect
1 Attempt until all data delivered, ignore timer
2 Attempt until all data is delivered or timer expires
Disc Buff Dly - Pending RD
DFV 0 Discard buffered data and disconnect
1 Attempt until all data delivered, ignore timer
2 Attempt until all data is delivered or timer expires
Disc Buff Dly - Timer
DFV 0 - 255 Delivery timer in seconds (default is 0)
+FCLASS Fax/Modem Mode
DFV 0 Data Mode
1 Fax Class 1 Mode
8 Voice Mode
+FLO Fax Flow Control
DFV 0 None
1 XON/XOFF
2 RTS/CTS
+FMI? Report Manufacturer ID
DFV - -
+FMM? Report Modem ID
DFV - -
+FMR? Report Revision #
DFV - -
+FPR Fax DTE Rate
DFV 0 Autobaud
+FRH Receive HDLC Mode
F 3 V.21 at 300 bps
24 V.27ter at 2400 bps
48 V.27ter at 4800 bps
72 V.29 at 7200 bps
73 V.17 at 7200 bps with long train time
74 V.17 at 7200 bps with short train time