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VLC1324G
VDSL2 Line Card
User’s Guide
Version 3.90
5/2008
Edition 1
www.zyxel.com
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About This User's Guide About This User's Guide Intended Audience This manual is intended for users of the VLC1324G VDSL2 Line Card and the VSC1224-41 Splitter Card. It describes detailed information about the cards’ features and hardware. Related Documentation • IES-5000 and IES-6000 User’s Guides Refer to the IES-5000 or the IES-6000 User’s Guide for directions on installation, connections, maintenance, hardware trouble shooting and safety warnings. • MSC1000G and MSC1024G Management Switch
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Document Conventions Document Conventions Warnings and Notes These are how warnings and notes are shown in this User’s Guide. Warnings tell you about things that could harm you or your device. Notes tell you other important information (for example, other things you may need to configure or helpful tips) or recommendations. Syntax Conventions • The VLC1324G may be referred to as the “line card”, the “VLC”, the “device” or the “system” in this User’s Guide. • The “VLC1324G”, the “VLC”, the “
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Safety Warnings Safety Warnings For your safety, be sure to read and follow all warning notices and instructions. • Do NOT use this product near water, for example, in a wet basement or near a swimming pool. • Do NOT expose your device to dampness, dust or corrosive liquids. • Do NOT store things on the device. • Do NOT install, use, or service this device during a thunderstorm. There is a remote risk of electric shock from lightning. • Connect ONLY suitable accessories to the device. • Do N
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Safety Warnings VLC1324G User’s Guide 6
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Table of Contents Table of Contents About This User's Guide ..........................................................................................................3 Document Conventions............................................................................................................4 Safety Warnings........................................................................................................................5 Table of Contents...............................................
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Table of Contents 3.3 VDSL2 Data Transmission .................................................................................................. 32 3.4 Local Server ........................................................................................................................ 32 3.5 Data Rate ............................................................................................................................ 32 3.6 The Line Card is Not Manageable .................................
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List of Figures List of Figures Figure 1 Front Panel ............................................................................................................................... 21 Figure 2 Front Panel of VSC1224-41 ..................................................................................................... 21 Figure 3 VLC Ports 1-24 Telco-50 Connector Pin Assignments ........................................................... 25 Figure 4 IES-5000/5005 Cable Telco-50 Pin Assignmen
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List of Figures VLC1324G User’s Guide 10
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List of Tables List of Tables Table 1 VDSL2 Profile Maximum Transfer Rates ..................................................................................15 Table 2 Front Panel Ports ...................................................................................................................... 21 Table 3 LED Descriptions ...................................................................................................................... 21 Table 4 VLC Specifications .............
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List of Tables VLC1324G User’s Guide 12
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PART I Introduction, Specifications and Troubleshooting VLC Overview (15) VLC Specifications (23) VLC Troubleshooting (31) 13
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CHAPTER 1 VLC Overview This chapter introduces the VDSL2 line card's general features, default settings and hardware. 1.1 VLC Overview The VLC VDSL2 Line Card is perfect for ISPs or large building applications seeking to provide high bandwidth broadband services to subscribers while minimizing costs. One VLC provides VDSL2 service for 24 subscribers over existing telephone wiring, thus avoiding the cost and hassle of installing new wiring. The line from the user carries both the VDSL2 and
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Chapter 1 VLC Overview VDSL2 Compliance •ITU-T -G.993.2 -G.994.1 Discrete Multi-Tone (DMT) Modulation The VLC is a DMT-based VDSL2 solution which dynamically adapts the bit transfer rate to conditions on the local loop. This allows the line card to sustain high performance even over noisy lines. Transmit PSD Notches The VLC supports the transmission of PSD (Power Spectral Density) notches at RFI (Radio Frequency Interference) bands. This reduces the effects of strong radio sources nearby.
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Chapter 1 VLC Overview VDSL2 to ADSL2+ Fallback The VLC can automatically use ADSL2+ for connections where VDSL2 training fails. This allows a longer connection distance. Spectral Mask PSD (Power Spectral Density) defines the distribution of a VDSL line’s power in the frequency domain. A PSD mask is a template that specifies the maximum allowable PSD for a line. The VLC transmitter signal complies with the Power Spectrum Density (PSD) mask specified in ITU-T G.993.2 and supports masks EU32
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Chapter 1 VLC Overview Alarm LED An ALM (alarm) LED lights when the VLC is overheated or the voltage readings are outside the tolerance levels and turns off when the temperature or voltage has returned to a normal level. CFM The IEEE 802.1ag Connectivity Fault Management (CFM) specification allows network administrators to identify and manage connection faults. Through discovery and verification of the path, CFM can detect, analyze and isolate connectivity faults in bridged LANs. This is e
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Chapter 1 VLC Overview IGMP Snooping The VLC supports IGMP snooping enabling group multicast traffic to be only forwarded to ports that are members of that group; thus allowing you to significantly reduce multicast traffic passing through your VLC. IGMP Filter The IGMP filter defines multicast groups a port can join. You can create IGMP filter profiles which allow access to a multicast group, then assign the IGMP filter to a specific VDSL2 port. Multicast Group Limit You can limit the nu
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Chapter 1 VLC Overview DHCP Relay DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual computers to obtain TCP/IP configuration at start-up from a server. You can configure the system as a DHCP relay agent to have another DHCP server provide TCP/IP configuration for the clients. In addition, you can set the system to forward client DHCP requests to specific DHCP servers based on the VLAN ID. You can also specify up to two DHCP servers for each VLAN to provide f
