Contents:
Introduction
Web Diagnostic Interface Reference
USRobotics Regulatory Information
Information for End Users, Customer Support Technicians, Field Engineers, and Network System Administrators Introduction
Reference
The Light Emitting Diodes (LEDs) on the USRobotics Cable Modem serve multiple purposes and indicate various aspects of the cable modem's status, from power up, through complete registration, and finally to online operation.
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LED
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Function
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Color
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Status
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Explanation
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PWR
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Power status
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Green
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On | Cable modem has proper power and is considered "on." |
| Blinking | ||||
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TST
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Hardware Test1
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Amber
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On | Error indicator (refer to Figure 1-2). |
| Blinking | Cable modem is executing a hardware self-diagnosis. | |||
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PC
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Ethernet status
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Green
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On | Cable modem has proper Ethernet link status. |
| Blinking | Cable modem is transmitting or receiving data via the Ethernet interface. | |||
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SD
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Upstream TX
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Green
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Blinking | Cable modem is transmitting data upstream to the CMTS. |
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RD
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Downstream TX
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Green
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Blinking | Cable modem is receiving data from the CMTS via the downstream. |
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CBL
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Downstream status
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Green
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On | Cable modem QAM lock successful. |
| Blinking | Downstream scan in progress. | |||
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RDY
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Registration status
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Green
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On | Cable modem upstream ranging and registration complete. |
| Blinking | Cable modem upstream ranging in progress. |
Figure 1- 1 LEDs on Cable Modem
Before the cable modem is ready to send data, it must verify various aspects of the path that the data will follow for both upstream and downstream channels. Upstream and downstream data require two types of equipment: a cable modem on the customer end and a Cable Modem Termination System (CMTS) at the cable provider's end. Computer networking, security, and management of Internet access is configured for these two pieces of equipment. Since the data passes between the cable modem to the CMTS and vice versa, the cable modem must ensure that all aspects of the path are clear and ready to route data. Combinations of the LEDs on the cable modem represent the various areas in the process from power on of the modem though the cable modem being ready to transmit data.
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STAGE
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PWR
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TST
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PC
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SD
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RD
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CBL
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RDY
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| Power On |
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| Self Test |
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| RAM Self Test |
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| LED Test |
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| DS Scan |
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| DS QAM lock |
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| US Ranging |
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| Registration |
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| TX Data |
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| RX Data |
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| No Ethernet |
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| No Registration |
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| System Error |
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USB Interface
The USRobotics Cable Modem includes a standard, full rate USB port that can be used to connect the local Customer Premise Equipment (CPE). Drivers for Windows 98SE, Windows Me, Windows 2000, and Windows XP are available and included on the CD-ROM packaged with the cable modem, and the installation of these drivers is managed from the CD-ROM. Note that when the USB interface is used, the TST LED on the cable modem will become active with software version 2.13.6002 and above2.
2Revisions of the USR6000 firmware after 2.13.6002 use the TST LED to indicate USB status.
Ethernet Interface
The USRobotics Cable Modem includes an auto-sensing, full-duplex, 10 or 100 Mbps Ethernet port. Operating systems that support Ethernet functionality and have a preinstalled network interface card (NIC) do not require installation of any drivers.
Power Adapter
The USRobotics Cable Modem is supplied with either a North American or a Continental European power supply as necessitated by customer needs.
Specifications
The USRobotics Cable Modem is in full compliance with the Data Over Cable Service Interface Specification (DOCSIS) as displayed in Figure 1-3.
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Characteristic
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Downstream
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Upstream
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| Frequency Range | 88 MHz ~ 860 MHz | 5 MHz ~ 42 MHz |
| Bandwidth | 6 MHz | 200 KHz, 400 KHz, 800 KHz, 1.6 MHz, 3.2 MHz |
| Modulation | 64 QAM / 256 QAM | QPSK / 16 QAM |
| Symbol Rate | 5.057 / 5.361 Msymbols/sec | 160, 320, 640, 1280, 2560 Ksymbols/sec |
| Data Rate | 30 Mbps (64 QAM)43 Mbps (256 QAM) | 32 ~ 5.12 Mbps (QPSK).64 ~ 10.24 Mbps (16 QAM) |
| Power | -15 dBmV ~ +15 dBmV | +8 dBmV ~ +58 dBmV (QPSK)+8 dBmV ~ +55 dBmV (16 QAM) |
| SNR | 23.5 dB (64 QAM)30 dB (256 QAM) | No less than 25 dBmV |
| Power Consumption | 8 - 10 watts DC | |
| RF Cable Interface | 75Ω F-type female connector | |
Environmental Characteristics
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Condition
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Temperature
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| Ambient Temperature Range (Operational) | 0 to 50 degrees Celsius |
| Ambient Temperature Range (Storage) | -40 to 85 degrees Celsius |
| Humidity (Operational) | 10 to 90% noncondensing |
| Humidity (Storage) | 5 to 95% noncondensing |
MSO Support
As a service to MSO customers, USRobotics has established an MSO support Web site. This web site can provide the MSO with direct access to the latest code for the USR6000 as well as vital support information such as this guide and supporting files.
You can register for this site at http://www.usr.com/mso/. Registration is required to gain access to this site. The registration page requires basic contact information for the individual and the MSO that this individual represents. Once the form is completed, registration is immediately activated, and access to the site is granted.
Event Log Messages
The event log displayed via the web Diagnostic Interface or SNMP management tool can provide detailed information about the success or failure of the cable modem to connect to the CMTS via the cable network. It can also provide ongoing statistics during the normal usage of the cable modem.
To access the event log via SNMP, select the cable modem to be queried, and access the MIB table with the OID:
docsDevEventTable : 1.3.6.1.2.1.69.1.5.8
This will present a table of events with first and last time of occurrence, number of occurrences, and diagnostic text information.
The Event Log display of the Web Diagnostic Interface presents the same information in a format that is similar to most SNMP management tools.
The event IDs and text information associated with those IDs are referenced here.
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Downstream Acquisition Failed
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0
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T00.0 SYNC Timing Synchronization |
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1
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T01.0 Failed to acquire QAM/QPSK symbol timing. Error stats? Retry #s? |
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2
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T02.0 Failed to acquire FEC framing. Error stats? Retry #'s? # of bad frames? |
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3
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T02.1 Acquired FEC framing. Failed to acquire MPEG2 Sync. Retry #s |
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4
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T03.0 Failed to acquire MAC framing. Error stats? Retry #s? # of bad frames? |
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5
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T04.0 Failed to Receive MAC SYNC frame within time-out period |
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6
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T05.0 Loss of Sync. (Missed 5 in a row, after having SYNC'd at one time) |
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Failed to Obtain Upstream Parameters
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7
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U00.0 UCD Upstream Channel Descriptor |
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8
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U01.0 No UCDs Received. Time-out |
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9
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U02.0 UCD invalid or channel unusable |
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10
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U03.0 UCD valid, BUT no SYNC received. TIMED OUT |
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11
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U04.0 UCD, & SYNC valid, NO MAPS for THIS Channel |
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12
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U05.0 UCD received with invalid or out of order Configuration Change Count |
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13
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U06.0 US Channel wide parameters not set before Burst Descriptors |
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14
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M00.0 MAP Upstream Bandwidth allocation |
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15
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M01.0 A transmit opportunity was missed because the MAP arrived too late |
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Ranging Field: RNG-REQ Ranging Request
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16
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R00.0 RNG-REQ Ranging Request |
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17
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R01.0 NO Maintenance Broadcasts for Ranging opportunities Received T2 time-out |
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18
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R04.0 Received Response to Broadcast Maintenance Request, But no Unicast. Maintenance opportunities received. T4 timeout |
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19
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Undefined |
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20
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R101.0 No Ranging Requests received from POLLED cable modem (CMTS generated polls) |
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21
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R102.0 Retries exhausted for polled cable modem (report MAC address). After 16 R101.0 errors |
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22
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R103.0 Unable to Successfully Range cable modem (report MAC address) Retries Exhausted |
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23
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Undefined |
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24
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R104.0 Failed to receive Periodic RNG-REQ from modem (SID X), timing-out SID |
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Ranging Field: RNG-RSP Ranging Response
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25
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R00.0 RNG-RSP Ranging Response |
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26
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R02.0 No Ranging Response received, T3 timeout |
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27
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R03.0 Ranging Request Retries exhausted |
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28
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R05.0 Started Unicast Maintenance Ranging no Response received. T3 time-out |
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29
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R06.0 Unicast Maintenance Ranging attempted. No Response. Retries exhausted. |
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30
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R07.0 Unicast Ranging Received Abort Response. Re-initializing MAC |
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Registration Failed: REG-REQ Registration Request
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31
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I00.0 REG-REQ Registration Request |
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32
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I04.0 Service not available. Reason: Other |
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33
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I04.1 Service not available. Reason: Unrecognized configuration setting |
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34
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I04.2 Service not available. Reason: Temporarily unavailable |
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35
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I04.3 Service not available. Reason: Permanent |
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36
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I101.0 Invalid MAC header |
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37
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I102.0 Invalid SID, not in use |
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38
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I103.0 Required TLVs out of order |
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39
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I104.0 Required TLVs not present |
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40
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I105.0 Down Stream Frequency format invalid |
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41
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I105.1 Down Stream Frequency not in use |
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42
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I105.2 Down Stream Frequency invalid, not a multiple of 62500 Hz |
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43
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I106.0 Up Stream Channel invalid, unassigned |
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44
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I106.1 Up Stream Channel Change followed with (RE-)Registration REQ |
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45
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I107.0 Up Stream Channel overloaded |
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46
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I108.0 Network Access configuration has invalid parameter |
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47
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I109.0 Class of Service configuration is invalid |
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48
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I110.0 Class of Service ID unsupported |
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49
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I111.0 Class of Service ID invalid or out of range |
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50
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I112.0 Max Down Stream Bit Rate configuration is invalid format |
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51
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I112.1 Max Down Stream Bit Rate configuration setting is unsupported |
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52
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I113.0 Max Up Stream Bit Rate configuration setting invalid format |
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53
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I113.1 Max Up Stream Bit Rate configuration setting unsupported |
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54
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I114.0 Up Stream Priority configuration invalid format |
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55
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I114.1 Up Stream Priority configuration setting out of range |
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56
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I115.0 Guaranteed Min Up Stream Channel Bit Rate configuration setting invalid format |
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57
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I115.1 Guaranteed Min Up Stream Channel Bit Rate configuration setting exceeds Max Up Stream Bit Rate |
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58
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I115.2 Guaranteed Min Up Stream Channel Bit Rate configuration setting out of range |
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59
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I116.0 Max Up Stream Channel Transmit Burst configuration setting invalid |
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60
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I116.1 Max Up Stream Channel Transmit Burst configuration setting out of range |
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61
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I117.0 Modem Capabilities configuration setting invalid format |
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62
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I117.1 Modem Capabilities configuration setting |
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Registration Failed: REG-RSP Registration Response
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63
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I00.0 REG-RSP Registration Response |
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64
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I01.0 Registration RSP invalid format or not recognized |
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65
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I02.0 Registration RSP not received |
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66
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I03.0 Registration RSP with bad SID |
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67
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C00.0 UCC-REQ Upstream Channel Change Request |
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68
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C01.0 UCC-REQ received with invalid or out of range US channel ID |
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69
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C02.0 UCC-REQ received unable to send UCC-RSP, no TX opportunity format |
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70
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C100.0 UCC-RSP Upstream Channel Change Response |
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71
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C101.0 UCC-RSP not received on previous channel ID |
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72
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C102.0 UCC-RSP received with invalid channel ID. Radio Frequency Interface Specification SP-RFI-I05-991105 |
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73
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C103.0 UCC-RSP received with invalid channel ID on new channel |
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DHCP and TOD FAILED before registration
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74
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D00.0 DHCP Cable modem Net Configuration download and Time of Day |
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75
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D01.0 Discover sent no Offer received, No available DHCP Server |
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76
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D02.0 Request sent, no Response |
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77
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D03.0 Requested Info not supported |
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78
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D03.1 DHCP response doesn't contain ALL the valid fields as describe in the RF spec Appendix C.1 |
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TOD FAILED
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79
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D04.0 Time of Day, none set or invalid data |
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80
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D04.1 Time of Day Request sent no Response received |
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81
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D04.2 Time of Day Response received but invalid data/format |
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TFTP FAILED
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82
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D05.0 TFTP Request sent, No Response/No Server |
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83
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D06.0 TFTP Request Failed, configuration file NOT FOUND |
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84
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D07.0 TFTP Failed, OUT OF ORDER packets |
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85
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D08.0 TFTP complete, but failed Integrity Check (MIC) |
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86
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B00.0 Baseline Privacy |
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87
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B01.0 TBD |
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SW Upgrade
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88
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E111.0 SW download Successful |
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89
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E103.0 Upgrade Fail due to TFTP timeout |
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90
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E107.0 Upgrade Fail due to Bad image |
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91
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E104.0 TFTP failure: de_open failed |
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92
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E105.0 TFTP failure: de_read failed |
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93
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TFTP failure: file size > %d Bytes |
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94
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TFTP success (%d bytes) |
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95
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E101.0 TFTP %s from %08X |
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Miscellaneous
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96
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Undefined |
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97
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Undefined |
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98
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Undefined |
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99
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Undefined |
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100
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Undefined |
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101
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Syslog server set to %d.%d.%d.%d |
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102
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Undefined |
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103
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Undefined |
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104
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Undefined |
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105
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Undefined |
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106
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Undefined |
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107
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Undefined |
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108
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Undefined |
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109
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Undefined |
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110
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Cold Start |
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111
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Warm Start |
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112
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Link Down |
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113
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Link Up |
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114
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SNMP Authentication Fail |
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115
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Undefined |
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116
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Undefined |
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117
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Undefined |
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118
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Undefined |
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119
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Undefined |
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120
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Undefined |
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121
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Undefined |
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122
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Undefined |
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123
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Reset |
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124
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Undefined |
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125
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SNMP Event: %s |
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126
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Registration OK |
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127
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Undefined |
Frequently Asked Questions
This section deals with Frequently Asked Questions (FAQs) we have received from our study of the market place.
Question: Is the USR6000 Cable Modem Cable Labs certified?
Answer: Yes, USRobotics received certification in Wave 18.
Question: Is the USB Microsoft WHQL certified?
Answer: Yes, certification for Windows 98SE, Me, and 2000 has been completed.
Question: How much memory does the cable modem have?
Answer: The USR6000 cable modem has 4 megabytes of NVRAM.
Question: Does the USR6000 Cable Modem support DOCSIS 1.1?
Answer: Yes, the USR6000 Cable Modem can be upgraded to DOCSIS 1.1 via software download.
Question: Does the USR6000 Cable Modem have on-board diagnostics?
Answer: Yes, via the Web interface, the USR6000 Cable Modem maintains diagnostic information which is kept in a log file. This information is always available.
Question: What is the MAC address prefix for the USR6000 Cable Modem?
Answer: The MAC address prefix for the USR6000 Cable Modem is 00:C0:49.
Question: How many CPE MAC addresses can the cable modem support?
Answer: There are 32 supported by the USR6000 Cable Modem.
Question: How many characters can be supported in a community string?
Answer: The USR6000 Cable Modem supports up to 32 characters and supports all standard ASCII character sets.
Question: Does the USRobotics Cable Modem accept the creation of network management entries in any order?
Answer: Yes, although it will always process the filters using the index reference in a numeric ascending order.
Question: How many LLC filters can the USRobotics Cable Modem support?
Answer: The USRobotics Cable Modem can support up to 10 LLC filters.
Question: How many IP filters can the USRobotics Cable Modem support?
Answer: The USRobotics Cable Modem can support up to 32 IP filters.
