RAD Data comm TDMoIP Gateway IPmux-16 Especificaciones Pagina 22
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Chapter 1 Introduction IPmux-16 Installation and Operation Manual
1-14 Functional Description
Table 1-4. Ethernet Throughput – Unframed T1
TDM
bytes/frame
Frame
length
(bytes)
Over head
(bytes)
Over head
(%)
Packets
(per
second)
Throughput
(Mbps)
48 94 46 96 4107 3.08
96 142 46 48 2054 2.32
144 190 46 32 1369 2.07
192 238 46 24 1027 1.95
240 286 46 19 821 1.87
288 334 46 16 685 1.82
336 382 46 14 587 1.78
384 430 46 12 513 1.76
➤
To calculate Ethernet throughput and intrinsic PDV as a function of
TDM bytes/frame:
Ethernet load (bps) = [(frame overhead (bytes) + TDM bytes/frame) × 8] × frames/second
Frame overhead = Ethernet overhead + IP overhead = 46 bytes
Frame/second =
unframed: 5447/n for a full E1
4107/n for a full T1
framed: 8000Xk / (46.875 x n)
Where k = number of assigned timeslots
Where n =
48
ebytes/framTDM
Round Trip Delay
The voice path round-trip delay, which is a function of all connections and
network parameters, is calculated for E1/T1 as follows:
RTDelay
(
µ
s)
= 2 x (
NTS
n48×
x 125 (µs) + PDVT buffer (µs) +500 (µs))+ Network round trip delay
Where n =
48
ebytes/fram TDM
Where NTS = number of timeslots assigned
in unframed E1 interface = 32
T1 interface = 24
- IPmux-16 1
- Warranty 2
- Regulatory Information 2
- Safety Warnings 3
- Telecommunication Safety 3
- Contents 5
- List of Figures 6
- Table of Contents 7
- List of Tables 8
- Chapter 1 9
- Introduction 9
- 1-2 Overview 10
- Features 11
- Mode of Operation 12
- Multibundling 12
- Internal Cross Connect 12
- 1.2 Physical Description 13
- 1.3 Functional Description 14
- Testing 15
- Timing Modes 15
- Operation Modes 15
- External Network Timing 16
- Single Source Clock Network 16
- Frame Format 17
- 1-10 Functional Description 18
- Packet Delay Variation 19
- PDVT (Jitter) Buffer 20
- Ethernet Throughput 21
- Round Trip Delay 22
- End-to-End Alarm Generation 23
- 1.4 Technical Specifications 24
- Ethernet 25
- Modules 25
- 1-18 Technical Specifications 26
- Chapter 2 27
- Installation 27
- 2.3 Package Contents 28
- 2.4 Equipment Needed 28
- Equipment Needed 2-3 29
- 2.5 Installation and Setup 30
- Location of Connectors 31
- Connecting the Control Port 31
- Connecting the Power 32
- Chapter 3 33
- Operation 33
- 3.3 Operating Instructions 34
- User Name and Password 35
- 3.4 Getting Started 36
- 3.5 Menu Operations 37
- 3-6 Menu Operations 38
- Main Menu 39
- Viewing System Information 39
- General Information 40
- Event Log 41
- 3.7 Configuring IPmux-16 42
- General Configuration 43
- Manager List 46
- Alarms Trap Mask 48
- ASCII Terminal Configuration 49
- Time/Date Update 50
- Software Download/Upload 50
- VIEW TRANSFER STATUS 53
- Status Transferring Data 53
- Error No Error 53
- ESC. Exit 53
- Set Default Parameters 54
- File System 54
- Configuring IPmux-16 3-23 55
- Physical Layer Configuration 56
- LAN Configuration 56
- E1/T1 Configuration 57
- Configuring IPmux-16 3-27 59
- 3-28 Configuring IPmux-16 60
- Configuring IPmux-16 3-29 61
- 3-30 Configuring IPmux-16 62
- Configuring IPmux-16 3-31 63
- Time Slots Configuration 64
- Configuring IPmux-16 3-33 65
- Configuring IPmux-16 3-35 67
- Setting VLAN and IP Support 68
- Compliance to standards: 71
- 3-40 Configuring IPmux-16 72
- Configuring IPmux-16 3-41 73
- 3-42 Configuring IPmux-16 74
- LAN Statistics 75
- LAN statistics 75
- Bundle Connection Status 76
- Configuring IPmux-16 3-45 77
- 3-46 Configuring IPmux-16 78
- Chapter 4 79
- Troubleshooting and 79
- Diagnostics 79
- Table 4-1. Event Types 80
- 4.2 Troubleshooting 81
- 4.3 Diagnostic Tests 82
- T1 FDL Support 83
- T1 PRM Support 83
- 4-6 Diagnostic Tests 84
- Appendix A 85
- Boot Sequence for 85
- Downloading Software 85
- A-2 Booting IPmux-16 86
- Accessing the File System 87
- A-4 Booting IPmux-16 88
- Appendix B 89
- SNMP Management 89
- MIB Structure 90
- SNMP Environment B-3 91
- SNMP Communities 92
- Authentication 92
- Network Management Stations 92
- Appendix C 93
- Telnet Operation 94
- System Security 94
- Warning 95
- Preliminary Procedure 96
- Checking the Download 97
- Connecting the DC Plug 99
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