Странно ведет себя модем. Соединяется на V90/92, затем падает на V34. Ниже приведен лог и статистика. К сожалению, за очень короткий период времени.
Код:
10-04-2005 20:38:36.52 - D-Link DFM-562E External Modem in use.
10-04-2005 20:38:36.52 - Modem type: D-Link DFM-562E External Modem
10-04-2005 20:38:36.52 - Modem inf path: CONEXA~1.INF
10-04-2005 20:38:36.52 - Modem inf section: Install
10-04-2005 20:38:36.74 - 115200,N,8,1
10-04-2005 20:38:36.74 - 115200,N,8,1
10-04-2005 20:38:36.74 - Initializing modem.
10-04-2005 20:38:36.74 - Send: ATZ<cr>
10-04-2005 20:38:36.91 - Recv: <cr><lf>OK<cr><lf>
10-04-2005 20:38:36.91 - Interpreted response: Ok
10-04-2005 20:38:36.91 - Send: AT&F+IBC=0,0,0,,,,,0;+PCW=2;+PMH=1<cr>
10-04-2005 20:38:36.92 - Recv: AT&F+IBC=0,0,0,,,,,0;+PCW=2;+PMH=1<cr>
10-04-2005 20:38:36.97 - Recv: <cr><lf>OK<cr><lf>
10-04-2005 20:38:36.97 - Interpreted response: Ok
10-04-2005 20:38:36.97 - Send: ATE0V1S0=0&C1&D2+MR=2;+DR=1;+ER=1;W2<cr>
10-04-2005 20:38:36.98 - Recv: ATE0V1S0=0&C1&D2+MR=2;+DR=1;+ER=1;W2<cr>
10-04-2005 20:38:37.02 - Recv: <cr><lf>OK<cr><lf>
10-04-2005 20:38:37.02 - Interpreted response: Ok
10-04-2005 20:38:37.02 - Send: ATS7=60S30=0L0M1+ES=3,0,2;+DS=3;<cr>
10-04-2005 20:38:37.06 - Recv: <cr><lf>OK<cr><lf>
10-04-2005 20:38:37.06 - Interpreted response: Ok
10-04-2005 20:38:37.06 - Send: AT+IFC=2,2;BX4<cr>
10-04-2005 20:38:37.10 - Recv: <cr><lf>OK<cr><lf>
10-04-2005 20:38:37.10 - Interpreted response: Ok
10-04-2005 20:38:37.10 - Dialing.
10-04-2005 20:38:37.10 - Send: ATDT;<cr>
10-04-2005 20:38:39.25 - Recv: <cr><lf>OK<cr><lf>
10-04-2005 20:38:39.25 - Interpreted response: Ok
10-04-2005 20:38:39.25 - Dialing.
10-04-2005 20:38:39.25 - Send: ATDT#######<cr>
10-04-2005 20:39:02.41 - Recv: <cr><lf>+MCR: V92<cr><lf>
10-04-2005 20:39:02.41 - Interpreted response: Informative
10-04-2005 20:39:02.42 - Recv: <cr><lf>+MRR: 41333<cr><lf>
10-04-2005 20:39:02.42 - Interpreted response: Informative
10-04-2005 20:39:24.69 - Recv: <cr><lf>+ER: LAPM<cr><lf>
10-04-2005 20:39:24.69 - Interpreted response: Informative
10-04-2005 20:39:24.69 - Recv: <cr><lf>+DR: V44<cr><lf>
10-04-2005 20:39:24.69 - Interpreted response: Informative
10-04-2005 20:39:24.69 - Recv: <cr><lf>CONNECT 24000<cr><lf>
10-04-2005 20:39:24.69 - Interpreted response: Connect
10-04-2005 20:39:24.69 - Connection established at 24000bps.
10-04-2005 20:39:24.69 - Error-control on.
10-04-2005 20:39:24.69 - Data compression on.
10-04-2005 20:39:53.60 - Hanging up the modem.
10-04-2005 20:39:53.60 - Hardware hangup by lowering DTR.
10-04-2005 20:39:54.70 - Recv: <cr><lf>NO CARRIER<cr><lf>
10-04-2005 20:39:54.70 - Interpreted response: No Carrier
10-04-2005 20:39:54.70 - Send: ATH<cr>
10-04-2005 20:39:54.74 - Recv: <cr><lf>OK<cr><lf>
10-04-2005 20:39:54.74 - Interpreted response: Ok
10-04-2005 20:39:54.74 - 115200,N,8,1
10-04-2005 20:39:54.74 - Session Statistics:
10-04-2005 20:39:54.74 - Reads : 883 bytes
10-04-2005 20:39:54.74 - Writes: 1917 bytes
10-04-2005 20:39:54.74 - D-Link DFM-562E External Modem closed.
Код:
[20:34:35] User request
TERMINATION REASON.......... LOCAL REQUEST
LAST TX rate................ 24000 BPS
HIGHEST TX rate............. 26400 BPS
LAST RX rate................ 33600 BPS
HIGHEST RX rate............. 40000 BPS
PROTOCOL.................... LAPM
COMPRESSION................. V44
Line QUALITY................ 030
Rx LEVEL.................... 016
Highest Rx State............ 85
Highest TX State............ 87
EQM Sum..................... 001C
RBS Pattern................. 01
Rate Drop................... FF
Digital Loss................ None
Local Rtrn Count............ 00
Remote Rtrn Count........... 00
Flex fail
Rockwell Diagnostics/W32, version 1.3.0.0, compiled at Jun 13 2002 22:35:06
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
Connection time : 00:00:31
Handshake Time/Retries : 22 sec/28
TX Rate (Last/Init/Min/Max) : 24000/26400/24000/26400
RX Rate (Last/Init/Min/Max) : 33600/40000/24000/40000
Modulation/Protocol/Compression : V.90/LAPM/V.44
TX Symbol rate : 3429
Signal Level (TX/Power Drop), -dB : 10/3
RX Signal Level (Last/Min/Max), -dB : 15/15/14
Band Edge Lower/Upper, Hz : 150/3825
Round trip delay, ms : 13.373
EQM Value (Last/Min/Max/Negative) : 30/30/126/0
EQM Samples Running Sum : 001C
EQM Last 10 Readings : 126 126 0 NA NA NA NA NA NA NA
SNR Ratio (Last/Min/Max), dB : 48/46/48
TX Non-linear Encoding : ON
TX Precoding : ON
TX/RX Constellation Shaping : ON/ON
TX Trellis Encoding : 16 state
TX Pre-emphasis : 8
TX/RX state (Max TX/RX, Last TX/RX) : 87H/85H, 87H/85H
Error Correction Status : SABME:T UA:R XID:T,R SYNC
Dual PCM/120 Hz detection : No/No
Energy at 3750Hz/Average Energy : 4250/2352
RBS Pattern/Alternating RBS Pattern : 01/01
V.90 Digital Pad/A-law/HighPowerSrv : 0dB/No/No
Retrains (Issued/Granted/Fast) : 0/0/0
Renegs (Issued/Granted) : 0/2
Retrans per frame/Frames rejected : 1/0
Total number of REJ sent/received : 0/0
Last Retrain/Reneg reason : Remote initiated a reneg
Last Retrain/Reneg requested : Remote Rate Renegotiation
Minutes Since Last Retrain/Reneg : 0
Fallback to V34 reason : Data Pump decision to FB, EQM also bad
Disconnect reason : LOCAL REQUEST
Remote supports symbol rate (1,2,5) : 2743:ON 2800:ON 3429:ON 3429-TX:ON
Remote supports symbol rate (3,4) : 3000-L:ON 3000-H:ON 3200-L:ON 3200-H:ON
Remote power drop support : ON
Remote max symbol rate difference : 0 steps
Remote is a CME modem : No
Remote supports V.34bis : Yes
Remote frequency source : ITU-reserved
Remote is ITU/K56Flex neg/High IMD : No/No/No
V.8 bis CRe detected/early : No/No
CRe/CRd/CL/MS/ACK/NAK received : No/No/No/No/No/No
V.8bis success/V.8bis neg started : No/No
Quick Connect Info0 : QCA2 detected during QC init from V8bis
Quick Connect Info0 : QC handshake successfully
Quick Connect Info0 : Both modems indicate V.92 in INFO0
V92 debug information : Retrain/reneg/fast retrain successful
Call waiting count during connetion : 0
Last MOH Condition State : Idle wait for MOH action
Last MOH Datapump State TX : Sending A/B "Retrain State"
Last MOH Datapump State RX : Unknown
PCM Upstream RBS2 Detection : Unknown
PCM Phase4 Upstream Const./RR : 4-point/4-point
PCM Upstream Pad Detection : 0dB
7C4072567FFF73337FFF7E01
7D30761F7FFF716E7FFF7950
78A973B17FFF70D67FFF7EBF
7991718C7E2971FC7FFF7B0A
7E4D72047FFF76387FFF7D6C
799A74797FD5763B7FFF7FFF
008000000000000000000000
Unimodem Diagnostics/W32, version 1.1.0.1, compiled at Nov 20 2002 22:29:58
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
Diag Command Specification rev.: 1.0
Call Setup Result code : V.8bis signal detected
Multi-media mode : Data Only
DTE-DCE interface mode : Async data
TX/RX signal power level, -dBm : 10/16
Estimated noise level, -dBm : 28
TX/RX Negotiation : V.34/V.90 Issue 1 (asymmetric)
TX/RX Symbol Rate : 3429/3429
TX/RX Carrier frequency, Hz : 1959/1959
TX data rate (Last/Init) : 24000/26400
RX data rate (Last/Init) : 33600/40000
Temporary carrier loss count : 0
Carrier Rate Re-neg count : 2
Retrains Requested/Granted : 0/0
Protocol/Compression : V.42 LAPM/V.42bis
Error control frame size, bytes: 128
Error control timeouts in TX : 35
Error control NAKs received : 0
TX/RX flow control : V.24 ckt 106/133 / V.24 ckt 106/133
TX/RX chars sent : 228/201
TX/RX chars lost (data overrun): 0/0
TX/RX I-Frame count : 12/6
TX/RX I-Frame error count : 0/0
Termination Cause : cct108 turned Off
Пробовал играться с уровнем сигнала через s91. Было 10, поставил 15. Установлен код страны - США по AT+GCI=B5. Россия не поддерживается. Тем не менее судя по статистике уровень так и остался - 10. Похоже, модем сам себя глушит. Хотя линия новая и АТС цифровая.
Что бы можнно было предпринять в этом случае?