Related Manuals for Juniper G10 CMTS
Summary of Contents for Juniper G10 CMTS
- Page 1 Juniper Networks G10 CMTS Pre-Installation Guide Juniper Networks, Inc. 1194 North Mathilda Avenue Sunnyvale, CA 94089 408-745-2000 www.juniper.net Part Number: 530-006434-01, Revision 2...
- Page 2 • Products made or sold by Juniper Networks (including the G10 CMTS, M5 router, the M10 router, the M20 router, the M40 router, the M40e router, the • M160 router, and the JUNOS software) or components thereof may be covered by one or more of the following patents which are owned by or licensed to •...
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Page 3: Table Of Contents
About This Manual • • • • Purpose .........................ix • Organization ......................ix • Document Conventions ..................x • Notes, Cautions, and Warnings................x • G10 CMTS Document Set..................xi • • • Chapter 1 • Site Requirements ....................1 • • • • Safety ........................1 •... - Page 4 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide...
- Page 5 List of Figures List of Figures • • • • Figure 1: Average Upstream Noise Measurement Example........14 • Figure 2: Peak Upstream Noise Measurement Example........15 • • • • • • • • • • • • • • • •...
- Page 6 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide...
- Page 7 List of Tables List of Tables • • • • Table 1: G10 CMTS Environmental Specifications ..........4 • Table 2: RF Plant/HFC Environment Characterization ........6 • Table 3: Existing DOCSIS Service Characterization..........7 • Table 4: Upstream CMTS Parameter Characterization ........8 •...
- Page 8 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • viii Juniper Networks G10 CMTS Pre-Installation Guide...
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Page 9: About This Manual
• Purpose • • The purpose of this document, Juniper Networks G10 CMTS Pre-Installation Guide, is to • describe the installation site requirements that must be met prior to installing the G10 Cable • Modem Termination System (CMTS). The requirements and recommendations given are •... -
Page 10: Document Conventions
A caution indicates a situation that requires careful • attention. Failure to observe a cautionary note could result • in injury or discomfort to yourself, or serious damage to • the product. • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide... -
Page 11: G10 Cmts Document Set
G10 CMTS Document Set • • A warning is intended to alert the user of the presence of • uninsulated dangerous voltage within the product’s • enclosure that may present a risk of electric shock. • • • • •... - Page 12 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide...
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Page 13: Site Requirements
This document describes the installation site requirements that must be met prior to • installing the G10 Cable Modem Termination System (CMTS). These requirements and • recommendations are prerequisites to those instructions provided in the Juniper Networks • G10 CMTS Installation and Configuration manual. •... -
Page 14: Notices
• Power • • The G10 CMTS can be configured with either AC or DC power supply modules. To support a • fully-populated CMTS, the installation site must be able to source 1700 watts of input power. • Fully populated, the CMTS is configured with 10 power supplies. -
Page 15: Ac Power
• DC Power • • The G10 CMTS requires a DC power source that operates within a voltage range of –36 to –72 • VDC. Appropriately sized circuit protection measures must be implemented to ensure • compliance with electrical regulatory standards. -
Page 16: Mounting
• Mounting • • The G10 CMTS is designed for mounting in a 19-inch EIA RS-310-C equipment rack or a • 23-inch AT&T DATAPHONE equipment rack. Installation into non-standard racks may still be • accomplished through the additional rail mounting bracket holes provided with the CMTS. -
Page 17: Tools And Equipment Required For Installation
RF cables and adapters • • Ethernet cables with RJ-45 connectors • • The following equipment is required to configure the G10 CMTS and verify that the RF system • has been setup properly: • • PC with asynchronous terminal emulation •... -
Page 18: Characterization Of Installation Site
CMTS downstream and upstream transmissions. The information • collected will allow field engineers to verify that the installation site environment is • compatible with the G10 CMTS. Table 2 is provided to collect information regarding the RF • plant and HFC environment. •... -
Page 19: Table 3: Existing Docsis Service Characterization
Characterization of Installation Site Table 3 is provided to collect information regarding the existing DOCSIS services supported • by the installation site. If there are no existing DOCSIS services supported, skip Table 3 and • proceed to subsequent tables. If more than two DOCSIS services exist, additional •... -
Page 20: Table 4: Upstream Cmts Parameter Characterization
____ kHz/MHz (CH 14) ____ kHz/MHz (CH 14) • ____ kHz/MHz (CH 15) ____ kHz/MHz (CH 15) ____ kHz/MHz (CH 15) ____ kHz/MHz (CH 15) • • • • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide... - Page 21 Characterization of Installation Site • Upstream Parameters Port 0 Port 1 Port 2 Port 3 • DOCSIS Module #___ • • FEC enabled? _____ yes _____ no _____ yes _____ no _____ yes _____ no _____ yes _____ no If yes, FEC level parameters •...
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Page 22: Table 5: Downstream Cmts Parameter Characterization
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide... -
Page 23: Table 6: Upstream Frequency Spectrum Utilization
Characterization of Installation Site Table 6: Upstream Frequency Spectrum Utilization • • • Frequency Description of Utilization Frequency Description of Utilization • 5 – 6 MHz 24 – 25 MHz • • 6 – 7 MHz 25 – 26 MHz •... -
Page 24: Summary Checklist
Table 7 provides a summary checklist of the pre-installation requirements discussed in this • document. This checklist must be completed and approved by Juniper Networks field • engineers to ensure the installation site is properly prepared for installing the G10 CMTS. • • •... -
Page 25: Noise Measurement Methodology
Noise Measurement Methodology Noise Measurement Methodology • • • This section describes the proper methodology for conducting average and peak upstream • noise measurements. The procedures provided are designed to establish a consistent • methodology for obtaining the requested information during the characterization of the •... -
Page 26: Peak Upstream Noise Measurement
Configure the spectrum analyzer per the values defined in Table 9. • • Start the measurement. • • Upon completing the measurement, the analyzer display should resemble Figure 2 on • page 15. • Juniper Networks G10 CMTS Pre-Installation Guide... -
Page 27: Peak Upstream Noise Measurement Example
Noise Measurement Methodology Figure 2: Peak Upstream Noise Measurement Example • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •... -
Page 28: Additional Characterization Tables
____ dB (DOSCIS carrier) • ____ dB (Analog video carrier) • Downstream interleave depth setting ___ (# of taps) ____(increments) • • • • • • • • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide... -
Page 29: Table 11: Upstream Cmts Parameter Characterization
Additional Characterization Tables Table 11: Upstream CMTS Parameter Characterization • • • Upstream Parameters Port 0 Port 1 Port 2 Port 3 • DOCSIS Module #___ • Node combining ratio per ____ : 1 ____ : 1 ____ : 1 ____ : 1 •... - Page 30 ____ dBmV (CH 14) ____ dBmV (CH 14) ____ dBmV (CH 14) • ____ dBmV (CH 15) ____ dBmV (CH 15) ____ dBmV (CH 15) ____ dBmV (CH 15) • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide...
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Page 31: Table 12: Downstream Cmts Parameter Characterization
Additional Characterization Tables Table 12: Downstream CMTS Parameter Characterization • • • Downstream Parameters Port 0 Port 1 Port 2 Port 3 • DOCSIS Module #___ • Node combining ratio per port ____ : 1 ____ : 1 ____ : 1 ____ : 1 •... - Page 32 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Juniper Networks G10 CMTS Pre-Installation Guide...