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IPmux-16
TDMoIP Gateway
Installation and Operation Manual
Notice
This manual contains information that is proprietary to RAD Data Communications. No part of this
publication may be reproduced in any form whatsoever without prior written approval by RAD Data
Communications.
No representation or warranties for fitness for any purpose other than what is specifically mentioned in
this manual is made either by RAD Data Communications or its agents.
For further i
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Warranty This RAD product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, RAD will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by RAD. Buyer shall prepay shipping charges to RAD and RAD shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all sh
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Safety Warnings The exclamation point within a triangle is intended to warn the operator or service personnel of operation and maintenance factors relating to the product and its operating environment which could pose a safety hazard. Always observe standard safety precautions during installation, operation and maintenance of this product. Only a qualified and authorized service personnel should carry out adjustment, maintenance or repairs to this instrument. No adjustment, mainten
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Contents Chapter 1. Introduction 1.1 Overview .......................................................................................................... 1-1 Versions...................................................................................................................1-1 Applications.............................................................................................................1-1 Features.......................................................................
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Table of Contents 3.6 Configuring System Parameters .......................................................................... 3-7 Viewing System Information.....................................................................................3-7 3.7 Configuring IPmux-16 ...................................................................................... 3-10 General Configuration............................................................................................3-11 Time Slots Con
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Table of Contents 3-1. IPmux-16 Front Panel LEDs....................................................................................... 3-1 3-2. IPmux-16 Rear Panel Switch...................................................................................... 3-1 3-3. IPmux-16 Terminal Menu Tree.................................................................................. 3-6 3-4. Main Menu ...............................................................................................
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Table of Contents List of Tables 1-1. Ethernet Frame Structure......................................................................................... 1-10 1-2. UDP Source Port as Destination Voice Port ............................................................. 1-11 1-3. Ethernet Throughput – Unframed E1 ....................................................................... 1-13 1-4. Ethernet Throughput – Unframed T1................................................................
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Chapter 1 Introduction 1.1 Overview IPmux-16 is a modular TDMoIP gateway. IPmux-16 modules enable up to 16 E1 or T1 circuits to be extended over IP networks. The device converts the data stream coming from the E1 or T1 ports into configurable-sized IP packets that are transported over the Ethernet port and vice versa. IPmux-16 offers end-to-end synchronization for TDM applications and large buffers, to compensate for the delay variation inserted by the network. The device can be used t
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Chapter 1 Introduction IPmux-16 Installation and Operation Manual Site A PBX Site B NxE1/T1 Telephone IPmux-16 Links Switch PBX NxE1/T1 PBX Links Router IPmux-4 Ethernet Telephone Ethernet IPmux-16 Switch Switch Switch Workstation PBX Workstation 100BaseT 100BaseT Gigabit Gigabit Ethernet Ethernet Switch Switch Giga Ethernet Backbone Gigabit Ethernet MAN Switch 100BaseT Site C Ethernet Switch IPmux-16 Router Workstation E1/T1 E1/T1 NxE1/T1 Links PBX PBX Figure 1-2. IP Based Metropolitan A
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IPmux-16 Installation and Operation Manual Chapter 1 Introduction Features Management IPmux-16 can be managed via a local terminal, Telnet, or via RADview, RAD’s Network Management system. IPmux-16 has an RJ-45 port for the local terminal connection for monitoring and control. Software upload and download and configuration can be performed via the local terminal or via RADview. T1 T1 ports and framers comply with ANSI T1.403 standards. The T1 jitter performance is according to G.824,
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Chapter 1 Introduction IPmux-16 Installation and Operation Manual tolerance at the receiving end, causing buffer underflows and errors to occur. IPmux-16 supports VLAN tagging and priority. Mode of Operation IPmux-16 can operate in three different modes: • Unframed full E1/T1 over UDP over IP over Ethernet • Fractional E1/T1 over UDP over IP over Ethernet • Fractional with CAS over UDP over IP over Ethernet. Multibundling A bundle is a group of timeslots originating from a specific E1
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IPmux-16 Installation and Operation Manual Chapter 1 Introduction buffer begins to overfill, the regenerated clock frequency increases to avoid overflow. If the buffer begins to empty, the Receive clock decreases to avoid underflow. • Internal Clock In this mode, the Transmit (TX) clock is received from an internal oscillator. This mode is useful for testing and diagnostic purposes. Standards G.703, G.704, G.706, G.823, ANSI T1.403, TR-AT&T62411, G.824, IEEE 802.3, IEEE 802.3D, 802.
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Chapter 1 Introduction IPmux-16 Installation and Operation Manual Front Panel The control port and indicator LEDs are located on the front panel of IPmux-16. For further details see Chapter 2. Rear Panel Fuses, power supplies, the dry contact connector, and interface connectors are located on the rear panel of IPmux-16. For further details see Chapter 2. 1.3 Functional Description IPmux-16 modules support E1 or T1 TDM interfaces. The E1 and T1 modules have either four or eight ports. E
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IPmux-16 Installation and Operation Manual Chapter 1 Introduction Bundles composed of several timeslots (E1: 1-31, T1: 1-24) can be defined. Each bundle can be connected to a different destination bundle anywhere on the network. Up to 496 sub-E1 or 384 sub-T1 remote bundles can be attached to one central IPmux-16. Multibundling enables concentrating many remote sites with few timeslots to the same TDM channel at the central site. A mesh topology application, in which the bundles at each
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Chapter 1 Introduction IPmux-16 Installation and Operation Manual • Adaptive: In this mode, the E1 or T1 Tx clock is regenerated using the Adaptive method. In this method, the fill level of the buffer receiving packets is monitored. If the buffer begins to overfill, the regenerated clock frequency increases to avoid overflow. If the buffer begins to empty, the clock decreases to avoid underflow. • Internal Clock: In this mode, the Transmit (Tx) clock is received from an internal oscillat
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IPmux-16 Installation and Operation Manual Chapter 1 Introduction Note When there are several bundles from different sources at the same E1/T1 port, the bundle that will be used for adaptive clock regeneration for the port is the first bundle of every port. For example (E1): Bundle number 1 for port 1, bundle number 32 for port 2, bundle number 63 for port 3, bundle number 94 for port 4, etc. In this mode the regenerated clock is subject to network Packet Delay Variation and may not com
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Chapter 1 Introduction IPmux-16 Installation and Operation Manual Table 1-1. Ethernet Frame Structure Field length (bytes) Field 7 Preamble 1 SFD MAC 6 Destination MAC Address Layer 6 Source MAC Address IEEE 802.1p&q VLAN Tagging LLC (additional 4 bytes if enabled) 2 Type Layer 1 Vers/HLEN 1 Service Type 2 Total Length 2 Identification 1 Flags/Fragment Offset (most) 1 Fragment Offset (least) IP Layer 1 Time to Live 1 Protocol 2 Header Checksum 4 Source IP Address 4 D
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IPmux-16 Installation and Operation Manual Chapter 1 Introduction VLAN Support VLAN, according to IEEE 802.1p&q, adds four bytes to the MAC layer of the Ethernet frame. The contents of these bytes, MAC layer priority and VLAN ID, can be set by the user. In this mode, only VLAN format frames are sent and received by IPmux-16. The following figure describes the VLAN tag format. user_priority VID 81 00 8654 8 1 1 802.1D Tag Protocol Type Priority VLAN ID (802.1QTagType) Figure 1-9. VLAN
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Chapter 1 Introduction IPmux-16 Installation and Operation Manual t Packets Leaving IPmux-16 Packets Arriving t PDV Figure 1-10. Packet Delay Variation PDVT (Jitter) Buffer IPmux-16 is equipped with a Packet DVT (Delay Variation Tolerance) buffer. The PDVT buffer or jitter buffer is filled by the incoming IP packets and emptied out to fill the E1/T1 stream. The buffer begins to empty out only after it is half full in order to compensate for packet starvation from the Ethernet side. The
