Zhone 3920Plus Manual de instrucciones Pagina 145
- Pagina / 354
- Tabla de contenidos
- SOLUCIÓN DE PROBLEMAS
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
Configure Branch
5-693920-A2-GH30-40 October 1998
Table 5-12
(6 of 8)
V.42/MNP/Buffer Configuration Options — Singleport Mode A
SDC Idle Fill: Flag_Fill
Nxt Flag_Fill Mark_Fill
This configuration option only appears when the Async/Sync Mode configuration option is set is to Sync and
Sync Comp Mode configuration option is not set to DirectMode.
Synchronous Data Compression Idle Fill. Determines whether the modem uses an HDLC flag or mark to fill the time
between DTE frame transfers.
Flag_Fill – Causes the modem to fill the time between DTE frame transfers with HDLC flags.
Mark_Fill – Causes the modem to fill the time between DTE frame transfers with marks.
The AT command is S-Register S36 = n, where n is 0 for Flag_Fill and 1 for Mark_Fill.
SDC BitEncoding: NRZ
Nxt NRZ NRZI
This configuration option only appears when the Async/Sync Mode configuration option is set is to Sync and
Sync Comp Mode configuration option is not set to DirectMode.
Synchronous Data Compression Bit Encoding. Determines the type of bit encoding scheme (NRZ or NRZI) the modem
uses when transmitting synchronous DTE data.
NRZ – Causes the modem to use the standard Non Return to Zero bit encoding scheme.
NRZI – Causes the modem to use the Non Return to Zero Inverted bit encoding scheme.
The AT command is S-Register S37 = n, where n is 0 for NRZ and 1 for NRZI.
SyncDTE CRC: Ignore
Nxt Ignore CRC16
This configuration option only appears when the Async/Sync Mode configuration option is set to Sync and the
Sync Comp Mode configuration option is not set to DirectMode.
Synchronous DTE CRC. Determines whether the CRC of the DTE frame is transmitted from modem to modem.
Ignore – No assumption is made about the CRC type. The CRC is transmitted along with the other data in the frame.
CRC16 – The CRC is known to be the 16-bit CRC for HDLC frames defined by the ITU-T (generator polynomial x
16
+
x
12
+ x
5
+ 1). It is removed from the DTE frame by the sending modem and added to the DTE frame by the receiving
modem.
The AT command for SyncDTE CRC is S22=n, where n is 0 for Ignore and 1 for CRC16.
SDC Delay Min: Off
Nxt Off Rx_Clock
This configuration option only appears when the Async/Sync Mode configuration option is set to Sync and the
Sync Comp Mode configuration option is not set to DirectMode.
Synchronous Data Compression Delay Minimization. Allows the modem to transmit a DTE frame to its DTE in a
discontinuous way to minimize the delay introduced by SDC processing.
Off – The modem does not begin transmitting a frame to its DTE until the entire frame has been received.
Rx_Clock – The modem begins to transmit data from a DTE frame to its DTE even if the end of the DTE frame has not
yet been received by the modem. The receive clock (circuit 115/Pin 17) is clamped when the beginning of a DTE frame
has been transmitted to the DTE and no other data from this DTE frame has been received by the modem. As soon as
data from the current DTE frame can be transmitted to the DTE, the receive clock is released. The Rx_Clock
configuration option appears only if the Tx Clock Source configuration option is set to Internal.
The AT command for Off is #DM0.
The AT command for Rx_Clock is #DM1.
- COMSPHERE 1
- MODELS 3920P 1
- AND 3921PLUS 1
- 392xPlus Modems 2
- Models 3920Plus and 3921Plus 2
- Important Safety Instructions 3
- Table of Contents 5
- Appendices 7
- List of Figures 8
- List of Tables 9
- COMSPHERE 392xPlus Modems 10
- How to Use This Manual 11
- Related Documents 12
- Introduction 13
- COMSPHERE 392xPlus Models 14
- Chapter Title 15
- 3921Plus 16
- DTE B DTE A 17
- 392xPlus Operational Modes 18
- 392xPlus Modem Features 19
- Applications 20
- V.34 Modulation 21
- Multiport Backup 22
- Synchronous Data Compression 22
- United States 22
- Technical Specifications 25
- Table 1-2 26
- Specifications Description 26
- Modem Installation 27
- Customer-Supplied Equipment 28
- Dial Network Connection 33
- Leased Backup Connection 33
- Dial Backup Connection 33
- 495-14425-02 38
- RELEASE TAB 38
- 392xPlus Modem Power-Up 39
- DCP Operation 41
- Status Indicators 42
- Table 3-1 44
- 392xPlus DCP LEDs 44
- Color Indicates 44
- LCD Display 46
- Hidden Choice Indicators 46
- Other Indicators 47
- Menu Structure 48
- Table 3-3 51
- Top-Level Menu Status 51
- Status IndicatesMessage 51
- Quick Configuration Display 54
- Status Branch 59
- Leased:33.6 60
- Status Configure 60
- Table 4-1 62
- Health and Status Messages 62
- Type IndicatesMessage 62
- Displaying VF Conditions 64
- Clearing VF Counters 65
- Identity 66
- Service Log 75
- Configuration Tables 84
- Multiport Mode l 84
- Multiport Mode 85
- Table 5-1 87
- (2 of 9) 87
- (3 of 9) 88
- (4 of 9) 89
- (5 of 9) 90
- (6 of 9) 91
- (7 of 9) 92
- (8 of 9) 93
- (9 of 9) 94
- Table 5-2 96
- Dial Line — Multiport Mode l 98
- Table 5-3 100
- (3 of 3) 100
- Configure Branch 101
- Table 5-4 102
- (2 of 5) 102
- (3 of 5) 103
- (4 of 5) 104
- (5 of 5) 105
- Test — Multiport l 106
- Misc — Multiport l 107
- Table 5-6 108
- (2 of 4) 108
- (3 of 4) 109
- (4 of 4) 110
- Singleport Mode A 111
- 98-14624-07 112
- Table 5-7 114
- (2 of 8) 114
- (3 of 8) 115
- (4 of 8) 116
- (5 of 8) 117
- (6 of 8) 118
- (7 of 8) 119
- (8 of 8) 120
- Table 5-8 122
- Table 5-9 126
- Dial Line — Singleport Mode A 129
- Table 5-10 130
- Table 5-11 134
- (2 of 7) 134
- (3 of 7) 135
- (4 of 7) 136
- (5 of 7) 137
- (6 of 7) 138
- (7 of 7) 139
- Table 5-12 141
- Test — Singleport Mode A 147
- Table 5-13 148
- (2 of 2) 148
- Misc — Singleport Mode A 149
- Table 5-14 150
- Security — Singleport Mode A 154
- Poll List Branch 155
- Control Branch 161
- Data Stream 163
- Selecting All Ports 164
- EIA LEDs 165
- Make Busy/Remove Make Busy 166
- Download Software 168
- Selecting Clone Remote 169
- Automatic Firmware Download 176
- VF Thresholds Update 177
- Table 7-1 180
- VF Thresholds 180
- Valid Ranges Default Values 180
- Test Branch 181
- Loc Analog Loop 184
- Rem Digital Loop 185
- Loc Digital Loop 187
- Sub-Network Health 191
- Call Setup Branch 193
- Call_Setup 194
- Disconnect 196
- Dial Standby/Return to Dial 197
- Change Directory 199
- Table 10-1 201
- Valid Dial Command Modifiers 201
- Talk/Data Branch 203
- Dial Access Security 207
- Originate Access Security 208
- Answer Access Security 208
- VF-Side Passwords 209
- DTE-Side Passwords 210
- Security Branch 211
- Set Access Ctrl 212
- Admin Password? 212
- EditPasswdTable 213
- Select Index 213
- Table 12-1 215
- Set Answer Sec 216
- Set Orig Sec 217
- Set Admin PsWd 218
- Reset Security 219
- Table 12-4 221
- (2 of 3) 221
- Originate Access Password 223
- Database Table Examples 224
- Remote Branch 229
- Overview 233
- Command and Data Modes 233
- Command Guidelines 234
- Result Codes 235
- AT Command List 237
- S-Register List 248
- Menu Tree 265
- Gain Hts 266
- 98-15921b 267
- Troubleshooting 269
- Table B-4 271
- Modem — DTE Connection 271
- Symptom Action 271
- Table B-5 272
- (1 of 2) 272
- Modem — VF Connection 272
- Table B-8 274
- MUX Operation 274
- Pin Assignments 275
- EIA-232-D Pin Assignments 276
- VF Connector Pin Assignments 277
- Auxiliary Cables Not Supplied 278
- ITU-T V.25bis Dialing Command 281
- Call Request Commands 282
- Call Response 282
- Call Answer Commands 283
- Program Normal (PRN) 284
- Command Response 286
- ASCII Character Table 289
- Default Configuration Options 293
- Table F-1 294
- (1 of 10) 294
- (2 of 10) 295
- (3 of 10) 296
- (4 of 10) 297
- (5 of 10) 298
- (6 of 10) 299
- (7 of 10) 300
- (8 of 10) 301
- (9 of 10) 302
- (10 of 10) 303
- Sample Configurations 305
- Point-to-Point 306
- Sample Port Rate Table 307
- Extended Point-to-Point 308
- Extended Multipoint 310
- Configuration Options 311
- 28800(V34) 312
- Extended Diagnostics 318
- Digital Bridging 320
- Point-to-Point MSD 322
- Multipoint MSD 324
- DTE1, 2, 3, or 4 325
- Synchronous Data Format 328
- SDC Algorithm 328
- DTE and DCE Frames 329
- SDC User Interface 329
- Data Synchronization 330
- Flow Control Method 331
- Tuning SDC Efficiency 332
- SDC Negotiation 333
- Equipment List 335
- Glossary 337
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