Zhone 3821Plus User's Guide Page 69
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SDCP Menus
3-433821-A2-GB20-40 January 1999
Table 3-9
(5 of 5)
V.42/MNP/Buffer Configuration Options
TXBuffDiscDelay: 10sec
Nxt 10sec Disable 60sec
This configuration option only appears when Async/Sync Mode is configured for Async, and Error Control
Mode is
not
configured for DirectMode.
Transmit Buffer Disconnect Delay. Determines how long the modem continues to transmit data stored in its Transmit
buffer when the modem is commanded to disconnect by a locally attached DTE.
Disable – Modem disconnects immediately without attempting to send data stored in its buffer.
10, 60 sec – Maximum amount of time the modem tries to empty its buffer before disconnecting. In both cases (10 sec
and 60 sec), the modem disconnects much sooner if it can empty its buffer.
The factory default is 10sec.
The AT command for TXBuffDiscDelay is S49=
n
.
RXBuffDiscDelay: Disable
Nxt Disable 10sec 60sec
This configuration option only appears when Async/Sync Mode is configured for Async, and Error Control Mode
is
not
configured for DirectMode.
Receive Buffer Disconnect Delay. Determines how long the modem continues to send to the DTE data stored in its
Receive buffer when the modem is commanded to disconnect by a locally attached DTE, or detects a line disconnect.
Disable – Modem disconnects immediately without attempting to send data stored in its buffer.
10, 60 sec – Maximum amount of time the modem tries to empty its buffer before disconnecting. In both cases (10 sec
and 60 sec), the modem disconnects much sooner if it can empty its buffer.
The factory default is Disable.
The AT command for RXBuffDiscDelay is S39=
n
.
Max Frame Size: 256
Nxt 256 192 128 64 32 16
This configuration option only appears when Async/Sync Mode is configured for Async, and Error Control Mode
is
not
configured for BufferMode or DirectMode.
Maximum Frame Size. Sets the maximum frame size for V.42 and MNP. For MNP operation, 64 is the minimum value.
Any value less than that will automatically default to 64. For cellular applications, at least one of the sides should be set
to a low value. A setting of 32 is recommended. Only one modem needs this setting; both modems will automatically
default to the greatest common value.
The factory default is 256.
The AT Command for Max Frame Size is \A
n
.
CellularEnhance: Disable
End Disable Enable
This configuration option only appears when:
• ETC is installed
• Async/Sync Mode is configured for Async
• Error Control Mode is configured for V42/MNPorBfr, V42MNPorDsc, LAPM_or_Disc, or LAPM_or Bfr
Cellular Enhancement. When enabled, the modem uses non-standard techniques to enhance V.42 operation for cellular
applications. It is still compatible, however, with modems which do not have the cellular enhancement implemented or
enabled.
The factory default is Disable.
The AT command for CellularEnhance is S91=
n
.
- COMSPHERE 1
- Important Safety Instructions 3
- United States 5
- United Kingdom 6
- Ringer Equivalence Number 6
- Connection to Leased Lines 6
- All European Countries 7
- Safety Notice 7
- Restrictions 7
- Table of Contents 9
- COMSPHERE 3821Plus Modem 10
- Table of Contents 11
- Objectives and Reader 13
- Assumptions 13
- How to Use This Manual 13
- Related Documents 14
- Introduction 15
- Status Indicators 16
- Table 1-1 17
- Color Indicates 17
- SDCP Operation 18
- Modem Installation 19
- 495-14797 22
- Front Panel 22
- 495-14800 22
- 496-14801-01 23
- 495-14829 24
- SDCP Menus 27
- Menu Structure 28
- Modem Status Messages 29
- SDCP Menus 31
- Modem Select Branch 33
- Quick Configuration Display 33
- Call Setup Branch 35
- Change Directory 36
- Entering Telephone Numbers 36
- Status Branch 37
- Identity 38
- 494-14855 39
- Local Digital Loop 40
- Remote Digital Loop 40
- Configure Branch 41
- Configure 42
- DTE Interface 44
- Table 3-4 45
- (1 of 6) 45
- (2 of 6) 46
- (3 of 6) 47
- (4 of 6) 48
- (5 of 6) 49
- (6 of 6) 50
- DTE Dialer 51
- Table 3-5 52
- Line Dialer 56
- Table 3-6 57
- (2 of 4) 57
- (3 of 4) 58
- (4 of 4) 59
- Dial Line 60
- Table 3-7 61
- Leased Line 63
- Table 3-8 64
- V.42/MNP/Buffer 65
- Table 3-9 66
- Table 3-11 72
- Control Branch 73
- Clone To Remote 74
- To Local via DTE 74
- Remote Branch 75
- This page intentionally left 76
- AT Commands and S-Registers 77
- Command Guidelines 78
- AT Command List 78
- ATDT9,5551234 79
- Table 4-1 80
- (2 of 13) 80
- AT Commands 80
- (3 of 13) 81
- (4 of 13) 82
- (5 of 13) 83
- (6 of 13) 84
- D D 85
- (9 of 13) 87
- (10 of 13) 88
- (11 of 13) 89
- (12 of 13) 90
- (13 of 13) 91
- S-Register List 92
- (2 of 10) 93
- (3 of 10) 94
- (4 of 10) 95
- (5 of 10) 96
- (6 of 10) 97
- (7 of 10) 98
- (8 of 10) 99
- Table 4-2 100
- (9 of 10) 100
- S-Registers 100
- (10 of 10) 101
- Recovering AT Commands 102
- Initialization Strings 103
- Fax Operation 105
- Remote Access 107
- 495-13082a-02 108
- Security 109
- Originate Security 110
- Answer Security 110
- Callback Security 111
- Security Branch 111
- EditPassWdTable 112
- Select Index 112
- Table 7-1 113
- (2 of 2) 113
- Set Answer Sec 114
- Set Orig Secur 115
- Set CallBack Sec 115
- " Procedure 116
- Security Configuration 117
- Table 7-5 118
- (2 of 3) 118
- (3 of 3) 119
- SDCP Menu Tree 121
- 98-14848-01 122
- 98-14849-01 123
- 495-14850 124
- Result Codes 125
- Table B-1 126
- Troubleshooting 129
- Table C-5 131
- (1 of 2) 131
- Modem – VF Connection 131
- Automatic Firmware 133
- Download 133
- Technical Specifications 135
- Table D-1 136
- Model 3821 136
- Technical Specifications 136
- Specifications Description 136
- Pin Assignments 137
- JM8 to RJ11 Crossover Cable 138
- NIM Cable Pin Assignments 139
- Overview 141
- Call Request Commands 142
- Call Response 142
- Call Connecting (CNX) 143
- Incoming Call (INC) 143
- Disregard Incoming Call (DIC) 143
- Connect Incoming Call (CIC) 143
- Command Response 144
- Equipment List 147
- Configuration Options by 149
- Country Code 149
- Table H-1 150
- (1 of 5) 150
- (2 of 5) 151
- (3 of 5) 152
- (4 of 5) 153
- (5 of 5) 154
- Table H-2 155
- Glossary 161
- Glossary 163
- 00282600 175
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