Cable Modem Network Analyzer Find Slow Surf Problems quickly and Easily

The CM1000 Cable Modem Network Analyzer is an installation and troubleshooting tool that fully tests DOCSIS Cable Modem installations. Unlike other instruments that use signals unrelated to the DOCSIS system, the CM1000 uses a built in cable modem to fully exercise the network on both the downstream and upstream paths. The CM1000 communicates with the Cable Modem Termination System (CMTS) to characterize the digital performance in both directions. In addition to conventional digital tests such as MER, BER, level and Constellation on the forward path, a new proprietary Sunrise technology allows Block Error Rate (BkER) testing on the return path without a headend unit. With this new return BkER technology, technicians will, for the first time, be able to characterize the return path modem performance. In addition, with the CM1000's full color display, technicians can determine at a glance whether the connection meets minimum requirements. By checking the various points in the installation, the technician can quickly determine which components need to be replaced to ensure optimum performance.

IP Test: Ping, Trace Route & Throughput

The IP tests provide the ability to choose additional network devices to PING, beyond the standard CMTS, the ability to measure the Throughput of the Downstream data path, and the ability to trace the data route through the network.

Ping allows the user to select from a list of saved PING addresses or enter a new Ping address and to "Ping" the selected address. Trace allows the user to map the network path to the IP address selected form the menu or entered in the Trace Route Address menu. Throughput allows the user to measure the Downstream data transfer rate of the network by downloading a file from the address entered in the SETUP menu.

The IP detail screens shows the information gathered I the DHCP process to verify proper cable modem provisioning.

All Modem Parameters Viewable on Full Color Display

Once the Sunrise CM1000 has connected to the CMTS, all major parameters on both the upstream and downstream paths are displayed on a single color screen. This gives the technician complete snapshot of the system performance in both directions. Parameters that pass user defined limits are indicated in green, while failed parameters are displayed in red. More detail on either the upstream or downstream is available on the detail screens allowing users to troubleshoot any failed parameters quickly. Using the main modem screen technicians can move from location to location and quickly find the source of the problem, without the need for an outboard computer or cable modem. With the display indicating all green parameters, the technician can be assured of good cable modem performance, in both directions.

Highlights

• BER, MER, Constellation and Level on the Downstream
• BkER, Power Level, Attenuation, Ping Time and Lost Packets on the Upstream
• Modem Connection Screen for Troubleshooting Connection Problems
• Cable Modem and PC Emulation
• Handheld Package With Color Display Viewable in Full Sun
• Rugged Modular Case
• 10/100 Base T Ports for Computer Connection
• Web Browser Option - surf just like a PC or access workforce management systems
• CE4000 Module Plugs into the CM1000 Base, providing easy to use TDR functions for troubleshooting Cable TV and DOCSIS Modem installations.
• LP100 Leakage Profiler option to locate and measure signal leakage
• RealView Remote spectrum view of the upstream from a RealWORX controller and AT2500 analyzer located at the headend or hub.

The Modem Screen Displays the performance of
both the Downstream and Upstream. Failed
parameters are clearly indicated in red

Upstream Analysis

Upstream Spectrum - Because the return path is often the most challenging portion of the network, the Install Profiler offers the simplest semi-automated test method for testing and troubleshooting the return path. The Upstream Spectrum option measures “bursty” TDMA return signals, intermittent ingress, noise and CPD (common path distortion). Simply set the markers and the Install Profiler does all the work, reading out the carrier level of TDMA signals, CPD or ingress, C/I ratio and C/N ratio.

Cable Modem Network Tests

• Upstream block error rate
• Transmit power and attenuation
• 10/100 Base T for computer connection
• Cable modem connection screen
• Modular mainframe

Downstream Analysis

• Pre and Post FEC bit error rate (BER)
• Modulation Error ratio (MER)
• Constellation Display with automatic diagnosis
• Digital video measurements
• Digital signal level meter