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Maintenance and Troubleshooting

5–2

5.1.1

Cleaning Patch Cord or Pigtail Fiber Optical Connectors

To clean optical connectors, Harmonic recommends using a fiber optic
connector cleaning cartridge (such as NTT Cletop). If a cleaning cartridge is
not available, follow these steps.

To clean the optical connector of a patch cord or pigtail:

1. Fold a piece of unused dry lens cleaning paper twice, for a four-ply

thickness.

2. Use a drop of high-grade isopropyl alcohol to wet part of the paper.
3. Lay the connector on the lens cleaning paper with the tip touching the

paper.

4. In one continuous motion, pull the connector from the wet part of the

paper to the dry part.

5.1.2

Cleaning HRR 4104 Optical Connectors

To clean the optical connectors of the HRR 4104 receiver:

1. Disconnect the fibers from the optical connectors in the face plate.
2. Use a fiber optic cleaning swab (part number F1-25184 from Fiber

Instrument Sales, or similar) and wet with high-grade isopropyl alcohol.

3. Insert the cleaning swab directly into the adapter until it fully touches the

connector end face inside.

4. Apply light pressure while rotating the swab clockwise one full turn.
5. Insert a second clean (dry) cleaning swab into the adapter until it fully

touches the connector end face inside.

6. Again, apply light pressure while rotating the swab clockwise one full

turn.

7. Reconnect the fibers to the optical connectors.

5.2

Troubleshooting

Should a problem occur, see if the symptoms are listed in Table 5-1.

Table 5-1:

Troubleshooting Solutions

Symptom

Solution

Platform does not recognize
the HRR 4104 module

Verify that the controller cable is connected
between the CPS module and HLP 4200 platform
(see the

CPS 42xx Product Manual

Verify that the HRR 4104 module is fully engaged
with the HMC 4008 carrier. Verify that the
HMC 4008 carrier is fully engaged in the
platform.

If that does not correct the problem, contact
Customer Service (see Section 5.3).

Содержание HRR 4104

Страница 1: ...HRR 4104 Return Path Receiver Product Manual Manual Part No 700 0051981 Rev A March 2005...

Страница 2: ...oduct designs Specifications are subject to change without notice Harmonic and logo design eXchange MAXLink METROLink NETWatch PWRBlazer TRANsend and Redefining the Network are trademarks of Harmonic...

Страница 3: ...gnal Output 2 8 Chapter 3 User Interface Options 3 1 HLP 4200WD Display 3 1 3 1 1 Main Menu 3 1 3 1 2 Receiver Menu 3 3 3 1 3 Receiver A B C D Menus 3 4 3 1 4 Module Menu 3 6 3 2 NETWatch Site Control...

Страница 4: ...1 1 Cleaning Patch Cord or Pigtail Fiber Optical Connectors 5 2 5 1 2 Cleaning HRR 4104 Optical Connectors 5 2 5 2 Troubleshooting 5 2 5 3 In Case of Problems 5 4 5 4 Disclaimer 5 4 5 5 Warranty Summa...

Страница 5: ...round the world 1 2 Description The HRR 4104 is a high performance optical return path receiver that is optimized to operate in the 5 to 100 MHz return band This compact half slot plug in module is de...

Страница 6: ...P 4200 Figure 1 2 shows front and rear panel features of the HRR 4104 Figure 1 1 HRR 4104 block diagram Figure 1 2 HRR 4104 front and rear panel features Factory use only Status LED Select LED RF Moni...

Страница 7: ...with the platform controller via the platform communication bus For additional information on the HLP 4200 Platform and its associated communication and power buses see the HLP 4200 Platform Product M...

Страница 9: ...the input fiber cables How to test RF signal output 2 1 Receiving and Inspecting As you unpack your unit inspect the shipping container and equipment for damage Save the shipping material for future u...

Страница 10: ...modules The receiver module is held in the carrier by blind mate RF connectors on the carrier You can place the HMC 4008 carrier into any available position in the HLP 4200 Platform Figure 2 1 HMC 400...

Страница 11: ...power from the HMC 4008 module carrier The carrier is powered by the 24 VDC bus of the HLP 4200 For additional information on the HLP 4200 Platform and its associated communication and power buses se...

Страница 12: ...iver and mutes itself unless the backup receiver s optical input level is also low in which case the backup receiver remains muted When the primary receiver s optical input level rises above the optic...

Страница 13: ...lers are attached as described in Section 2 4 connect the cables to the couplers 3 Tighten the cables securely using an F connector tool if necessary 2 6 Installing and Using the HFM 4000 Fiber Manage...

Страница 14: ...e 2 7 6 The fiber naturally forms a service loop that fits behind the protective front plate on the fiber tray as shown in Figure 2 5 on page 2 7 The fiber should run straight through the channel and...

Страница 15: ...s that of the HRR 4104 for example SC APC 4 Verify that the fiber cable connectors have been cleaned properly If you suspect that a connector may have been exposed to contamination for example by a di...

Страница 16: ...a test connector female F type located on the front panel of the HRR 4104 module as shown in Figure 1 2 on page 1 2 The RF monitor level is 20 dB 1 0 dB below the output level of the receiver Use the...

Страница 17: ...alarms 3 1 HLP 4200WD Display The HRR 4104 receiver module can be configured and monitored conveniently via the buttons and display of the HLP 4200WD Platform 3 1 1 Main Menu Figure 3 1 on page 3 2 pr...

Страница 19: ...e appears instead of the Receiver menu The Receiver menu is organized into five sub menus allowing you to select one of the four receivers or the module as shown in Figure 3 2 The Receiver A B C and D...

Страница 20: ...3 Receiver A B C D Menus The Receiver A B C and D menus allow you to obtain diagnostic information and make adjustments to a specific receiver A B C or D of the HRR 4104 The Receiver A menu is shown i...

Страница 21: ...he manual RF pad value The Receiver Adjust menu settings are described in Section 4 1 Adjustment Options on page 4 1 Step by step setup instructions are provided in Section 4 3 Setup via HLP 4200WD Di...

Страница 22: ...opyright 2005 Harmonic Inc 3 1 4 Module Menu The Module menu lets you obtain status and alarm information or copy settings for the HRR 4104 module The Module menu is shown in Figure 3 4 Figure 3 4 Mod...

Страница 23: ...C and D The Module Adjust menu is shown in Figure 3 4 3 2 NETWatch Site Controller Harmonic s NET 5200 NETWatch Site Controller provides a complete element management system including a Windows based...

Страница 24: ...MP and via the HLP 4200WD front panel display For information on accessing the alarms via the HLP 4200WD front panel display see Section 3 1 Table 3 2 HRR 4104 Alarms Alarm Description Module Alarms M...

Страница 25: ...he HRR 4104 module Each setting applies only to a single receiver The factory default settings are provided in Section 4 1 9 4 1 1 Optical Alarm Limit The optical alarm limit is the threshold at which...

Страница 26: ...point and maximum and minimum pad limits When AGC is disabled You must manually set the RF pad to control the output of the module 4 1 5 AGC Pad Setpoint When AGC is enabled you can set the receiver s...

Страница 27: ...reference optical input power is established in the Receiver Adjust menu set the manual RF pad to the value that generates the RF output you are looking for Example Given the optical input power of t...

Страница 28: ...to appropriate settings that conform to the rules above 4 3 Setup via HLP 4200WD Display This section provides instructions for setting up the HRR 4104 receiver module via the buttons and display of t...

Страница 29: ...display reads RECEIVER A MUTE Hold down the Set button and press or until the value you want FORCED or UNFORCED is displayed then press Enter For details on the mute feature see Section 4 1 3 Mute on...

Страница 30: ...ress or until YES is displayed then press Enter The display asks ARE YOU SURE COPY TO B C D YES NO 22 To confirm the settings changes hold down the Set button and press or until YES is displayed then...

Страница 31: ...are the leading source of poor performance in a broadband optical fiber network Dirty optical connectors lead to optical signal loss and reflections which in turn can seriously degrade carrier to noi...

Страница 32: ...optic cleaning swab part number F1 25184 from Fiber Instrument Sales or similar and wet with high grade isopropyl alcohol 3 Insert the cleaning swab directly into the adapter until it fully touches th...

Страница 33: ...Customer Service see Section 5 3 Receiver x muted manually Manually unmute the receiver see Section 4 3 step 9 Receiver x AGC beyond limits Verify optical input level Change AGC pad maximum and minimu...

Страница 34: ...ting by Harmonic The use and purchase of this product does not convey a license under any patent rights copyrights trademark rights or any intellectual property rights of Harmonic Nothing hereunder co...

Страница 35: ...operation of the product or software or firmware will be uninterrupted or error free 5 6 Limitations of Warranty The foregoing warranty shall not apply to defects resulting from abuse neglect by the B...

Страница 37: ...0 dB C IM31 60 dB RF output level2 45 dBmV per channel Operational bandwidth 5 to 100 MHz Flatness 5 to 70 MHz 0 5 dB 70 to 100 MHz 1 0 dB RF attenuator adjustment range 30 dB in 1 0 dB steps Impedanc...

Страница 38: ...to 100 MHz 12 dB Impedance 75 Connector type Female F Network Management RS 485 RS 233C connectors in HLP 4200 A 4 Electrical Power requirements 24 VDC supplied by HLP 4200 bus Power consumption 15 W...

Страница 39: ...ector A 8 Agency Certifications UL60950 CSA60950 cTUVus FCC Part 15 Class A EN60950 TUV GS mark EN 55022 EN55024 TUV EMC mark CE A 9 Compliance with WEEE Harmonic will ensure that all products that ca...

Страница 41: ...c Way Sunnyvale CA 94089 U S A Tel 1 800 788 1330 inside U S Tel 1 408 542 2500 outside U S Fax 1 408 490 6708 Asia Pacific Headquarters Harmonic Limited Suite 703 704 CMG Asia Tower The Gateway 15 Ca...

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