IRIS DC1100E manual Configuring Downstream RF Settings

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Configuring Downstream RF Settings

DOCSIS protocol utilizes an available channel to send downstream signal for data communications. Depending upon the frequency plan NTSC or PAL, IRIS automatically provides you the channel number and the center frequency in a drop down menu.

Figure 15 Downstream RF Settings

Using the “Center frequency with channel number” select the channel that you wish to use to send downstream signal. This channel should not be used to send any video signal.

Using the “RF Power” setting you can adjust the output level of the downstream signal. If you wish to adjust output power levels beyond the range you have to use outside attenuators. Digitally modulated signal levels are usually 10 to 12 dB less than the analog signal levels for the adjacent carriers.

256 and 64 QAM modulation is used for downstream communication. 256 QAM requires a much cleaner plant and channel. For noisier cable plants it is recommended to use 64 QAM for downstream. Using the ‘Modulation scheme’ select the appropriate downstream modulation plan.

After making the selection click the “Save” button to apply these changes. Center frequency and RF power changes do not require system to be rebooted. Changing the downstream modulation scheme requires a system restart.

Coaxial Networks, Inc.

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Contents Iris DC1100-UG RevisionThis page intentionally left blank Table of contents Coaxial Networks, Inc Table of Figures This page intentionally left blank Copyright 2001-2005, Coaxial Networks, Inc Software LicenseLimited Warranty General Provisions Coaxial Networks, Inc Introduction Key BenefitsInstallation Requirements Package ContentsIris Rear Panel Connections Iris Rear PanelIris Front Panel Mounting the Iris UnitMounting Flat on Wall Attaching mounting braces for flat wall mountCoaxial Networks, Inc Setup Connecting Your Iris DC1100Configuring Your IRISDC1100 Checking Conditions Prior to System StartupCoaxial Cable Specifications Cable Network Diagram ConnectionsIris Connections with Integrated Upconverter Iris Connections with an external UpconverterIris Uplink Connection Connections with an external UpconverterConfiguring Iris ConfigurationLogging into Iris Connecting using Web Interface Web LoginConfiguring TCP/IP parameters Iris ConfigurationConfiguring Iris in Router mode Save and rebootConfiguring Iris in Bridge mode Network SetupBridge mode setup Bridge Mode Configuration Configuring Downstream RF Settings Downstream RF SettingsConfiguring Upstream RF Settings Upstream RF SettingsCreating Class of Service Profiles Class of Service CreationCoaxial Networks, Inc Enabling conditional access Controlling Cable Modem AccessAdding Cable Modems Saving Cable Modems List Cable Modem SubscriptionCoaxial Networks, Inc Iris CLI interface using Telnet Connecting from the cable interfaceConnecting from serial console Telnet to IrisHelp command LoggingPreg or preg verbose command Psid commandConfigcm command Pcpe commandCount command Rcount command Ver commandReboot command Shutdown commandUpcon command Coaxial Networks, Inc This page intentionally left blank Application Notes Network traffic between cable clientsAllowing PPPoE traffic across Iris Static IP MappingAssigning a reserved IP address to the CPE Assigning additional IP addresses to the uplink InterfaceChannel Frequency Chart Ntsc Channel Frequency Chart in MHz DocsisCoaxial Networks, Inc Coaxial Networks, Inc Coaxial Networks, Inc PAL Frequency Allocation EuroDOCSIS Channel Center Frequencies for Selected PAL SystemsChannel Center Frequencies for System G Hyperband Coaxial Networks, Inc Channel Center Frequencies for System G and D Regulatory Compliance Agency StandardsSpecifications Ietf MibsInsert/Overtype Mode Command Mode Entering Insert ModeVI Visual Editor EnteringCoaxial Networks, Inc Miscellaneous Ex Commands Ex syntax Some commands areVi environment variables File Saving and LoadingExamples

DC1100, DC1100E specifications

The IRIS DC1100E and DC1100 are advanced document scanning solutions designed to streamline the digitization process within various business environments. Recognized for their efficiency and robust functionality, these devices cater to the growing need for effective document management.

One of the primary features of the IRIS DC1100E and DC1100 is their high-resolution scanning capability, which ensures that documents are captured with exceptional clarity. The ability to scan in color, grayscale, and black and white at resolutions up to 600 dpi allows users to preserve the original quality of the documents, making them suitable for archiving or sharing digitally.

Equipped with an Automatic Document Feeder (ADF), the IRIS DC1100E and DC1100 can handle multiple pages in a single operation, enhancing productivity for businesses that deal with bulk documents. The ADF typically accommodates up to 50 sheets, significantly reducing the time and effort required for scanning larger volumes of paper.

Another standout characteristic is the advanced image processing technology included in these scanners. This technology optimizes scanned images by automatically cropping, rotating, and enhancing the clarity of text and images. Features such as automatic color detection help users achieve better results without the need for manual adjustments.

In terms of connectivity, the IRIS DC1100E and DC1100 offer versatile options to integrate seamlessly into existing office systems. The ability to connect via USB allows for a straightforward setup, while compatibility with various operating systems ensures that users can easily operate the device regardless of their preferred software environment.

Furthermore, these scanners support a wide range of file formats, offering flexibility when it comes to saving and sharing scanned documents. Users can save files as PDFs, JPEGs, and more, facilitating ease of access and organization.

User-friendly software accompanies the IRIS DC1100E and DC1100, providing features for document management, including OCR (Optical Character Recognition) capabilities. This functionality enables users to convert scanned documents into editable and searchable text, enhancing the efficiency of information retrieval.

In summary, the IRIS DC1100E and DC1100 are powerful scanning solutions well-suited for businesses looking to enhance their document management processes. With features such as high-resolution scanning, an efficient ADF, advanced image processing, versatile connectivity, and comprehensive software support, these devices represent a significant advancement in document digitization technology.
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