Настройка IDC 5614 по результатам статистики

[Ryabchik]

Уважаемый Technical Support!
Я стал обладателем модема IDC 5614BXL/VR+. Посоветуйте пожалуйста как нужно его настроить на максимальную производительность на моей телефонной линии (АТС - цифровая).
Читаю Ваши ответы. У меня возник вопрос по поводу ввода строки инициализации - как правильнее ее вводить - через Hyper Terminal, или через - "Свойства модема" - ... - "строка инициализации".
Вот моя статистика:
Inpro IDC Modems Diagnostics, Version: 1.1.4.39
29.03.2007 22:15:18 - Clipboard Copy
--------------------------------------------------------
Modem Type: IDC-5614BXL/VR+ (Plus) Firmware Revision: V2.26
System Modem Init String: AT&FS38=0S95=41S115=0E0<cr>
User Modem Init String: <none>

Time Online.................. 00:32:12
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 28800/28800/28800/28800 bps
Rx Rate (Last/Init/Min/Max).. 50667/48000/48000/52000 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 21
Tx/Power Drop/Rx Level....... 15/1/13
SNR Last/Min/Max............. 43/43/43
Highest Rx/Tx State.......... 67/87
EQM Sum...................... 00B8
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 0/0/0
Renegs Issued/Granted........ 24/0
FForwards/FBacks/FEQM/Denied. 10/14/2/0
Forced FB/FB after FF/MaxREJ. 10/4/11
Last dialed number........... P2340665
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)..... 21/15/106
EQM Hits..................... 0
EQM Last 10 Readings......... 31 20 19 18 18 17 21 18 21 20
Fast Retrains (RRWS) Count... 13
Last Retrain/Reneg Status.... Local Rate Renegotiation
Last Retrain/Reneg Reason.... Local Fallback due to High EQM
Last Retrain/Reneg Time...... 4 minutes ago
Handshake Time/Retries....... 23 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....... 4
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 8,8
Last Rx/Tx State............. 67/87
Energy at 3750Hz/Average .... 3346/1069
Auto Gain Amplitude, db...... 10
Rx Level (Last/Min/Max), -dB. 12,4/12,4/12,4
Detection of 120 Hz Tones.... No
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
Error Correction Status Byte. SYNC UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/17
Frames Errors, Rx/Tx......... 273/0 (0,6%/0,0%)
Frames Count, Rx/Tx.......... 48441/11261
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.......... 6 470 740
Characters Sent.............. 516 418
Average CPS, Rx/Tx........... 3349/267
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 56

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[Technical Support]

Строку инициализации нужно вводить в свойствах модема. Попробуйте такую:

S91=18 S210.7=1 S55.4=1 S202.3=1 S17=52
_________________
Inpro
Technical Support

[Ryabchik]

S91=18 S210.7=1 S55.4=1 S202.3=1 S17=52

Получил такую статистику:

Inpro IDC Modems Diagnostics, Version: 1.1.4.39
30.03.2007 13:01:27 - Clipboard Copy
--------------------------------------------------------
Modem Type: IDC-5614BXL/VR+ (Plus) Firmware Revision: V2.26
System Modem Init String: AT&FS38=0S95=41S115=0E0<cr>
User Modem Init String: S91=18 S210.7=1 S55.4=1 S202.3=1 S17=52

Time Online.................. 00:23:03
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 26400/26400/26400/26400 bps
Rx Rate (Last/Init/Min/Max).. 46667/49333/46667/49333 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 24
Tx/Power Drop/Rx Level....... 18/0/13
SNR Last/Min/Max............. 43/43/43
Highest Rx/Tx State.......... 67/87
EQM Sum...................... 0093
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 0/0/0
Renegs Issued/Granted........ 8/0
FForwards/FBacks/FEQM/Denied. 2/6/1/0
Forced FB/FB after FF/MaxREJ. 3/2/9
Last dialed number........... P2340665
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)..... 24/12/127
EQM Hits..................... 0
EQM Last 10 Readings......... 21 28 16 18 33 17 26 24 17 27
Fast Retrains (RRWS) Count... 3
Last Retrain/Reneg Status.... Local Fast Retrain
Last Retrain/Reneg Reason.... Local Fallback due to High EQM
Last Retrain/Reneg Time...... 2 minutes ago
Handshake Time/Retries....... 23 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....... 3
Band Edges Lower/Upper, Hz... 150/3825
Round trip delay, ms......... 7,6
Last Rx/Tx State............. 67/87
Energy at 3750Hz/Average .... 3413/1089
Auto Gain Amplitude, db...... 10
Rx Level (Last/Min/Max), -dB. 12,4/12,4/12,4
Detection of 120 Hz Tones.... No
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
Error Correction Status Byte. SYNC UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/170
Frames Errors, Rx/Tx......... 170/1 (1,1%/0,0%)
Frames Count, Rx/Tx.......... 15928/4806
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 3
Error Control Link NAKs...... 1
Compression Dictionary Size.. V.42bis (2048)
Characters Received.......... 2 197 523
Characters Sent.............. 304 140
Average CPS, Rx/Tx........... 1588/219
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 56

[Technical Support]

Статистика несколько похуже, чем предыдущая. Думаем, что это связано с худшим состоянием канала (первая статистика - ночная, когда нагрузка на сеть минимальна и соответственно, помех гораздо меньше).

Думаем, нужно строку инициализации оставить, как есть. Результат вполне достойный и соответствует качеству связи (оно на Вашей АТС очень неплохое).
_________________
Inpro
Technical Support