Посоветуйте строку инициализации

[aidar]

Статистику направил на support@inpro.us.com с темой "aidar"

[Technical Support]

Пожалуй, стоит попробовать побороться за V.90. Попробуйте такую строку инициализации:

S91=15 S210.7=1 S202.3=1 S202.5=1 S55.4=1
_________________
Inpro
Technical Support

[aidar]

S91=15 S210.7=1 S202.3=1 S202.5=1 S55.4=1
Inpro IDC Modems Diagnostics, Version 1.0.2.33
15.07.2004 23:52:40 - Outbound Call by RemoteAccess
--------------------------------------------------------
Modem type: IDC-5614BXL/VR+ (Plus) Firmware revision: V2.24

Time Online.................. 00:05:08
Termination Reason........... LINK DISCONNECT
Tx Rate (Last/Init/Min/Max).. 26400/26400/26400/26400 bps
Rx Rate (Last/Init/Min/Max).. 45333/42667/42667/46667 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 14
Tx/Power Drop/Rx Level....... 15/0/15
SNR Last/Min/Max............. 43/43/43
Highest Rx/Tx State.......... 67/87
EQM Sum...................... 00D0
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 0/0/1
Renegs Issued/Granted........ 9/0
FForwards/FBacks/Denied...... 5/4/0
Forced FB/FB after FF/MaxREJ. 3/3/9
Last dialed number........... PXXXXX
V90 9481834347E8


Negotiation Result (Rx/Tx)... V.90 Issue 1 (asymmetric)/V.34
Symbol Rate (Rx/Tx).......... 8000/3200
Carrier Frequency Hz, Tx..... 1829
EQM Value (Last/Min/Max)..... 14/10/127
EQM Hits..................... 0
EQM Last 10 Readings......... 15 14 16 16 16 16 12 14 14 15
Last Retrain/Reneg Status.... Local Rate Renegotiation
Last Retrain/Reneg Reason.... Local Fallback due to High EQM
Last Retrain/Reneg Time...... 1 minutes ago
Handshake Time/Retries....... 25 seconds/0
Non-linear Encoding, Rx/Tx... OFF/ON
Precoding, Rx/Tx............. OFF/ON
Shaping, Rx/Tx............... OFF/ON
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 2
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 1,9
Last Rx/Tx State............. 67/87
Energy at 3750Hz/Average .... 2332/1
Auto Gain Amplitude, db...... 10
AGC Gain (Last/Min/Max)...... 103/103/103
Detection of 120 Hz Tones.... Yes
Detection of Dual PCM........ No
V.90 RBS Pattern............. 00
V.90 Alternating RBS Pattern. 00
V.90 Digital Pad Value, db... 0,0
V.90 Optimal Speed........... 44000 bps (Reg.S120=13)
V.8 Negotiation Started...... Yes
V.8bis Success............... Yes
V.8bis CRe,CRd,CL,MS,ACK,NAK. Yes/No/Yes/No/Yes/No
Remote Manufacturer.......... Rockwell (Conexant)
Remote Licensee Code......... Rockwell (Conexant)
Remote Protocol Support...... K56flex V.90
Remote K56flex Version....... 03
Remote K56flex Capabilities.. Prototype mode is not supported
Remote Type.................. Server (Digital)
Remote supports Symbol Rates. 2743 2800 3429 3000(L) 3000(H)
Remote supports Symbol Rates. 3200(L) 3200(H) 3429(Tx)
Remote supports Power Drop... Yes
Remote is CME Modem.......... No
Remote supports V.34bis...... Yes
Remote Max SR Difference..... 0 Symbol Rate Steps
Remote Frequency Source...... Internal
Error Correction Status Byte. SYNC UA:T UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/41
Frames Errors, Rx/Tx......... 41/1 (0,4%/0,1%)
Frames Count, Rx/Tx.......... 9541/1711
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 8
Error Control Link NAKs...... 1
Compression Dictionary Size.. V.42bis (2048)
Characters Received.......... 1 105 578
Characters Sent.............. 19 819
Average CPS, Rx/Tx........... 3589/64
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 58

[Technical Support]

Не зря боролись!

Теперь пропишите эти установки в профиль NVRAM модема (чтобы "освободить место" в строке инициализации). Из терминальной программы выполните команды:

atz
OK

at s91=15 s210.7=1 s202.3=1 s202.5=1 s55.4=1 &w
OK

Очистите строку инициализации и впишите туда команды:

S17=64 S120=0 +MS=,,,45333

Идея в том, чтобы избавиться от "лишних" fallback/fall-forward, ограничив скорость приёма сверху. Скорее всего, ограничить нужно на уровне 45333, но если количество пересогласований скорости существенно не уменьшится, то ужесточите ограничение до 44000 бит/с.
_________________
Inpro
Technical Support

[aidar]

Начал с 45333, но из-за слишком продолжительных "провалов" постепенно спустился до 40000
S17=64 S120=0 +MS=,,,40000
Inpro IDC Modems Diagnostics, Version 1.0.2.33
17.07.2004 22:11:57 - Outbound Call by RemoteAccess
--------------------------------------------------------
Modem type: IDC-5614BXL/VR+ (Plus) Firmware revision: V2.24

Time Online.................. 00:05:08
Termination Reason........... LINK DISCONNECT
Tx Rate (Last/Init/Min/Max).. 26400/26400/26400/26400 bps
Rx Rate (Last/Init/Min/Max).. 40000/40000/40000/40000 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 17
Tx/Power Drop/Rx Level....... 15/0/15
SNR Last/Min/Max............. 41/41/43
Highest Rx/Tx State.......... 67/85
EQM Sum...................... 00BC
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 0/0/1
Renegs Issued/Granted........ 1/0
FForwards/FBacks/Denied...... 0/1/0
Forced FB/FB after FF/MaxREJ. 0/0/4
Last dialed number........... PXXXXX
V90 9481834347E8

Negotiation Result (Rx/Tx)... V.90 Issue 1 (asymmetric)/V.34
Symbol Rate (Rx/Tx).......... 8000/3200
Carrier Frequency Hz, Tx..... 1829
EQM Value (Last/Min/Max)..... 17/11/127
EQM Hits..................... 0
EQM Last 10 Readings......... 14 13 22 14 16 14 12 13 15 13
Last Retrain/Reneg Status.... Local Fast Retrain
Last Retrain/Reneg Reason.... Local Fallback due to High EQM
Last Retrain/Reneg Time...... 1 minutes ago
Handshake Time/Retries....... 25 seconds/0
Non-linear Encoding, Rx/Tx... OFF/ON
Precoding, Rx/Tx............. OFF/ON
Shaping, Rx/Tx............... OFF/ON
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 1
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 2,3
Last Rx/Tx State............. 67/67
Energy at 3750Hz/Average .... 2244/1
Auto Gain Amplitude, db...... 10
AGC Gain (Last/Min/Max)...... 103/103/103
Detection of 120 Hz Tones.... Yes
Detection of Dual PCM........ No
V.90 RBS Pattern............. 00
V.90 Alternating RBS Pattern. 00
V.90 Digital Pad Value, db... 0,0
V.90 Optimal Speed........... No Limit (Reg.S120=0)
V.8 Negotiation Started...... Yes
V.8bis Success............... Yes
V.8bis CRe,CRd,CL,MS,ACK,NAK. Yes/No/Yes/No/Yes/No
Remote Manufacturer.......... Rockwell (Conexant)
Remote Licensee Code......... Rockwell (Conexant)
Remote Protocol Support...... K56flex V.90
Remote K56flex Version....... 03
Remote K56flex Capabilities.. Prototype mode is not supported
Remote Type.................. Server (Digital)
Remote supports Symbol Rates. 2743 2800 3429 3000(L) 3000(H)
Remote supports Symbol Rates. 3200(L) 3200(H) 3429(Tx)
Remote supports Power Drop... Yes
Remote is CME Modem.......... No
Remote supports V.34bis...... Yes
Remote Max SR Difference..... 0 Symbol Rate Steps
Remote Frequency Source...... Internal
Workaround Used.............. Rate Reneg Failure (At 64 or 84)
Error Correction Status Byte. SYNC UA:T UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/17
Frames Errors, Rx/Tx......... 17/0 (0,2%/0,0%)
Frames Count, Rx/Tx.......... 9977/1848
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 5
Error Control Link NAKs...... 0
Compression Dictionary Size.. V.42bis (2048)
Characters Received.......... 1 229 210
Characters Sent.............. 19 454
Average CPS, Rx/Tx........... 3990/63
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 56

[Technical Support]