можно ли улучшить связь

[v198]

помогите настроить модем - выше 31K не соединяется
АТС вроде старая
ни разу еще не видел у себя коннекта >33.6
есть ли шансы добиться стабильного соединения на v90 хотя бы до 40k?

Inpro IDC Modems Diagnostics, Version 1.0.2.33
06.11.2004 1:44:51 - Outbound Call by RemoteAccess
--------------------------------------------------------
Modem type: IDC-5614BXL/VR+ (Plus) Firmware revision: V2.26

Time Online.................. 00:14:12
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 26400/24000/24000/26400 bps
Rx Rate (Last/Init/Min/Max).. 31200/31200/31200/31200 bps
Modulation................... V.34bis
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 49
Tx/Power Drop/Rx Level....... 15/1/28
SNR Last/Min/Max............. 37/37/37
Highest Rx/Tx State.......... 85/87
EQM Sum...................... 0034
RBS Pattern.................. NA
Rate Drop.................... NA
Digital Loss................. None
Retrains Issued/Granted/Auto. 0/0/0
Renegs Issued/Granted........ 0/1
FForwards/FBacks/FEQM/Denied. 0/0/0/0
Forced FB/FB after FF/MaxREJ. 0/0/2
Last dialed number........... P8W8091231313
Flex fail 9481834246E0

Negotiation Result (Rx/Tx)... V.34/V.34
Symbol Rate.................. 3200
Carrier Frequency Hz, Rx/Tx.. 1829/1829
EQM Value (Last/Min/Max)..... 49/36/55
EQM Hits..................... 0
EQM Last 10 Readings......... 48 50 46 45 46 51 49 48 45 50
Last Retrain/Reneg Status.... Remote Rate Renegotiation
Last Retrain/Reneg Reason.... Remote Rate Renegotiation
Reason for V.34 Fallback..... Data Pump decision to Fallback in Phase 2
Last Retrain/Reneg Time...... 14 minutes ago
Handshake Time/Retries....... 17 seconds/0
Non-linear Encoding, Rx/Tx... ON/OFF
Precoding, Rx/Tx............. ON/OFF
Shaping, Rx/Tx............... ON/OFF
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 0
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 4,4
Last Rx/Tx State............. 67/87
Energy at 3750Hz/Average .... 136/1492
AGC Gain (Last/Min/Max)...... 67/67/67
Detection of 120 Hz Tones.... Yes
Detection of Dual PCM........ Yes
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....... 02
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:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/13
Frames Errors, Rx/Tx......... 13/0 (0,1%/0,0%)
Frames Count, Rx/Tx.......... 19489/3755
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 0
Error Control Link NAKs...... 0
Compression Dictionary Size.. V.42bis (2048)
Characters Received.......... 2 542 007
Characters Sent.............. 55 582
Average CPS, Rx/Tx........... 2983/65
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 65

[Technical Support]

Попробуйте прописать такую строку инициализации:

S91=15 S210.7=1 S202.5=1 S17=64

и покажите, что получается.
_________________
Inpro
Technical Support

[v198]

попробовал
соединение улучшилось но реальная скорость закачки выше не стала
вот лог

Inpro IDC Modems Diagnostics, Version 1.0.2.33
06.11.2004 12:51:51 - Outbound Call by RemoteAccess
--------------------------------------------------------
Modem type: IDC-5614BXL/VR+ (Plus) Firmware revision: V2.26

Time Online.................. 00:00:46
Termination Reason........... NO REMOTE RESPONSE
Tx Rate (Last/Init/Min/Max).. 24000/24000/24000/24000 bps
Rx Rate (Last/Init/Min/Max).. 29333/33333/28000/33333 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 126
Tx/Power Drop/Rx Level....... 9/0/31
SNR Last/Min/Max............. 36/36/37
Highest Rx/Tx State.......... 67/87
EQM Sum...................... 014E
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 1/0/1
Renegs Issued/Granted........ 6/0
FForwards/FBacks/FEQM/Denied. 0/6/6/0
Forced FB/FB after FF/MaxREJ. 0/0/2
Last dialed number........... P8W8091231313
V90 9481834246E0

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)..... 126/38/127
EQM Hits..................... 0
EQM Last 10 Readings......... 127 126 127 127 127 127 127 127 127 42
Last Retrain/Reneg Status.... Local Rate Renegotiation
Last Retrain/Reneg Reason.... Local Fallback due to High EQM
Last Retrain/Reneg Time...... 0 minutes ago
Handshake Time/Retries....... 22 seconds/0
Non-linear Encoding, Rx/Tx... OFF/OFF
Precoding, Rx/Tx............. OFF/OFF
Shaping, Rx/Tx............... OFF/OFF
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 0
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 4,4
Last Rx/Tx State............. 2F/47
Energy at 3750Hz/Average .... 99/0
Auto Gain Amplitude, db...... 10
AGC Gain (Last/Min/Max)...... 57/57/90
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........... 30667 bps (Reg.S120=3)
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....... 02
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:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 2/2
Frames Errors, Rx/Tx......... 2/0 (5,7%/0,0%)
Frames Count, Rx/Tx.......... 35/15
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 3
Error Control Link NAKs...... 0
Compression Dictionary Size.. V.42bis (2048)
Characters Received.......... 452
Characters Sent.............. 1 680
Average CPS, Rx/Tx........... 9/36
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 67

[Technical Support]

Что-то Вы не так или не там прописали. Если бы в модем попала команда S91=15, то в статистике был бы уровень выходной мощности передатчика -15, а не -9 дБм:

Tx/Power Drop/Rx Level....... 9/0/31

Перепроверьте строку инициализации. Прописывать её нужно в свойствах модема, и звонить нужно стандартным удалённым доступом (DUN, Windows Dial-Up Networking). Если пользуетесь "звонилками", то почитайте документацию на них, звонилки любят подменять строки инициализации.

Второе: 46 сек связи ни о чём не говорят. Нужна статистика хотя бы за 5 минут, при этом модем должен интенсивно принимать данные (скачивайте какой-нибудь архив).
_________________
Inpro
Technical Support

[v198]

да sorry действительно похоже я что-то напутал со строкой
да еще и лог перепутал тоже
вот теперь вроде нормальная строка, звонил стандартными средствами w2k3
только с " интенсивно принимать данные " не очень то получилось - скорость была просто никакая за 7 минут ~400KByte
качал архивчик

Inpro IDC Modems Diagnostics, Version 1.0.2.33
06.11.2004 14:23:29 - Outbound Call by RemoteAccess
--------------------------------------------------------
Modem type: IDC-5614BXL/VR+ (Plus) Firmware revision: V2.26

Time Online.................. 00:07:44
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 26400/21600/19200/26400 bps
Rx Rate (Last/Init/Min/Max).. 30667/33333/29333/33333 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 66
Tx/Power Drop/Rx Level....... 15/0/19
SNR Last/Min/Max............. 36/34/36
Highest Rx/Tx State.......... 67/87
EQM Sum...................... 0139
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 1/1/1
Renegs Issued/Granted........ 9/2
FForwards/FBacks/FEQM/Denied. 1/9/5/0
Forced FB/FB after FF/MaxREJ. 4/1/8
Last dialed number........... P8W8091231313
V90 9481834246E0

Negotiation Result (Rx/Tx)... V.90 Issue 1 (asymmetric)/V.34
Symbol Rate (Rx/Tx).......... 8000/3200
Carrier Frequency Hz, Tx..... 1920
EQM Value (Last/Min/Max)..... 66/30/127
EQM Hits..................... 0
EQM Last 10 Readings......... 127 45 48 46 44 43 48 49 43 43
Last Retrain/Reneg Status.... Local Rate Renegotiation
Last Retrain/Reneg Reason.... Local Fallback due to High EQM
Last Retrain/Reneg Time...... 0 minutes ago
Handshake Time/Retries....... 22 seconds/0
Non-linear Encoding, Rx/Tx... OFF/OFF
Precoding, Rx/Tx............. OFF/OFF
Shaping, Rx/Tx............... OFF/OFF
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 6
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 4,4
Last Rx/Tx State............. 65/67
Energy at 3750Hz/Average .... 384/0
Auto Gain Amplitude, db...... 10
AGC Gain (Last/Min/Max)...... 90/90/90
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........... 30667 bps (Reg.S120=3)
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....... 02
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:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/129
Frames Errors, Rx/Tx......... 129/4 (2,7%/0,4%)
Frames Count, Rx/Tx.......... 4728/896
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 110
Error Control Link NAKs...... 4
Compression Dictionary Size.. V.42bis (2048)
Characters Received.......... 397 011
Characters Sent.............. 13 421
Average CPS, Rx/Tx........... 855/28
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 55

[Technical Support]

Н-да... бороться за V.90 смысла нет. Получаемые на этом протоколе скорости не лучше, чем на V.34, а ошибок в принимаемых кадрах существенно больше. Переходим на V.34

Пропишите в строку инициализации команды:

S91=15 S210.7=1 +MS=11

и покажите, что получается в статистике.
_________________
Inpro
Technical Support

[v198]

ну что же жаль конечно
спасибо за support
видимо больше 31200 мне так и не увидеть на этой линии
вот что получилось c последней строкой:

Inpro IDC Modems Diagnostics, Version 1.0.2.33
06.11.2004 18:13:08 - Outbound Call by RemoteAccess
--------------------------------------------------------
Modem type: IDC-5614BXL/VR+ (Plus) Firmware revision: V2.26

Time Online.................. 00:07:31
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 28800/26400/26400/28800 bps
Rx Rate (Last/Init/Min/Max).. 33600/31200/31200/33600 bps
Modulation................... V.34bis
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 52
Tx/Power Drop/Rx Level....... 15/0/28
SNR Last/Min/Max............. 36/36/36
Highest Rx/Tx State.......... 85/87
EQM Sum...................... 0037
RBS Pattern.................. NA
Rate Drop.................... NA
Digital Loss................. None
Retrains Issued/Granted/Auto. 0/0/0
Renegs Issued/Granted........ 1/1
FForwards/FBacks/FEQM/Denied. 1/0/0/0
Forced FB/FB after FF/MaxREJ. 0/0/3
Last dialed number........... P8W8091231313
Flex fail

Negotiation Result (Rx/Tx)... V.34/V.34
Symbol Rate.................. 3429
Carrier Frequency Hz, Rx/Tx.. 1959/1959
EQM Value (Last/Min/Max)..... 52/28/60
EQM Hits..................... 0
EQM Last 10 Readings......... 47 45 51 58 46 54 50 48 53 56
Last Retrain/Reneg Status.... Remote Rate Renegotiation
Last Retrain/Reneg Reason.... Remote Rate Renegotiation
Last Retrain/Reneg Time...... 3 minutes ago
Handshake Time/Retries....... 17 seconds/0
Non-linear Encoding, Rx/Tx... ON/OFF
Precoding, Rx/Tx............. ON/OFF
Shaping, Rx/Tx............... ON/OFF
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 7
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 5,5
Last Rx/Tx State............. 67/87
Energy at 3750Hz/Average .... 698/1074
AGC Gain (Last/Min/Max)...... 67/67/67
Detection of 120 Hz Tones.... No
Detection of Dual PCM........ Yes
V.8 Negotiation Started...... Yes
V.8bis Success............... Yes
V.8bis CRe,CRd,CL,MS,ACK,NAK. Yes/No/Yes/No/Yes/No
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. ADP:R ODP:T
Error Correction Status Byte. SYNC UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/48
Frames Errors, Rx/Tx......... 48/6 (0,4%/0,3%)
Frames Count, Rx/Tx.......... 12195/2394
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 3
Error Control Link NAKs...... 6
Compression Dictionary Size.. V.42bis (2048)
Characters Received.......... 1 576 376
Characters Sent.............. 21 137
Average CPS, Rx/Tx........... 3495/46
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 64

[Technical Support]

Ну почему же не увидеть? Примерно в середине сессии модем поднял скорость до 33600, да так и работал на этой скорости до конца связи.

33600 - быстрее, чем 33333 (максимум, чего удавалось добиться на V.90). При этом ошибок практически не было, не было и пересогласований/перетренировок (кроме единственного пересогласования - перехода с 31200 на 33600). Для Вашей линии - отличный результат!
_________________
Inpro
Technical Support