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ME60 V800R010C10SPC500 Hardware Description

This is ME60 V800R010C10SPC500 Hardware Description
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Instructions on How to Use an Optical Module

Instructions on How to Use an Optical Module

This section describes instructions on how to use an optical module.

NOTE:
Only optical modules matching Huawei products can be used. These optical modules are strictly tested by Huawei. If non-matching optical modules are used, device requirements may fail to be met, and services may fail to run properly. To replace optical modules, see Parts Replacement-Replacing an Optical Module.

ESD-preventive Measures

Before touching any optical module, wear an ESD wrist strap or ESD gloves. Take full ESD-preventive measures when installing optical apparatus such as optical modules indoors or outdoors.

Methods of wearing ESD gloves



Methods of wearing ESD wrist strap



Placing Optical Apparatus and fibers

Do not touch pins or connecting fingers with bare hands. Handle the optical fibers gently. Use two fingers to hold the fiber connector instead of grasping the fiber or the fiber cover.

Do not apply axial or lateral fiber wallop bumps on the fiber. Do not fold, twist, or crush the tail fiber. Do not drag the tail fiber or press the coupling point of the tail fiber. Figure 11-1 shows how to properly place optical apparatus and fibers.

Figure 11-1 Methods of placing optical apparatus and fibers

NOTE:

Install the fiber in circles with diameter longer than 6 cm ( 0.20 ft ).

Uninstalling Optical Apparatus

  • Open the buckle and slowly take out the optical apparatus. Do not drag the optical fiber to forcibly take out the optical fiber. Ensure that the optical fiber is connected to and removed from the interface horizontally.

    The tab is closed



    The tab is open



  • 155Mbps SFP Electrical Transceiver, in Figure 11-2, (1) shows a black plastic latch. Press the latch to unlock the electrical module. As (2) indicates, hold the two sides of the electrical module to remove it.

    Figure 11-2 Removing a 155 Mbit/s electrical module

    Please do not remove the black plastic latch when removing the electrical module.



    If the black plastic latch falls off, use an auxiliary tool, such as a pair of tweezers, to press the cage buckle, as shown in the following figure. Then, hold the two sides of the electrical module to remove it.



  • CFP2 optical module(02311LYG), in Figure 11-3, Push the puller to the bottom until the latch shown in (1) automatically unlocks the optical module. Then, horizontally drag the puller to remove the optical module.

    Figure 11-3 Removing a CFP2 optical module

  • When removing a CFP optical module, loosen the two screw rods of the module and then remove the module slowly. Do not directly drag the optical fiber to pull out the optical module or forcibly pull out the optical module.



Precautions for the loosened optical module

  • When installing an optical module, force it into position. If a crack sound is heard or a slight tremor is felt, it indicates that the latch boss is secured. When the latch boss is not secured, the connecting finger is unstably connected to the connector on the board, and the link may become Up. On the condition that the optical module tremors or collides with another object, however, the optical module will be loosened or the optical signals will be temporarily cut off.
  • When inserting the optical module, make sure that the tab is closed. (At this time, the latch boss locks the optical module.) After the optical module is inserted, try pulling it out to see if it is installed in position. If the optical module cannot be pulled out, it is secured.
  • If you cannot push the optical module into an optical module cage any longer, the optical module is in good contact with the board connector.
  • The CFP optical module is in good contact with the board connector. By then, fasten the captive screws at both ends of the optical module at the same time. If you fasten the captive screws one by one, the optical module may fail to be securely installed.
  • When installing a CFP optical module, push the module panel horizontally into the connector using even force with both thumbs. After the module is inserted, push the module slightly to ensure that it has reached the stop position.
  • After the CFP optical module is securely inserted, tighten the two screw rods of the module alternately. To prevent the module from getting loosened due to vibration or collision, you are advised to use a screwdriver to tighten the screw rods.

Precautions for receptacle contamination

  • Clean tissues must be prepared for deployment on site. You need to clean the optical connector before inserting it in the receptacle. This protects the receptacle against the contamination.
    NOTE:
    Use at least three cleaning tissues. Wipe the end of an optical connector horizontally in one direction, and then move the connector end to the unused part of the cleaning tissue to continue. Generally, one cleaning tissue is used for cleaning an optical connector.


  • To prevent contamination, the optical module should be covered with either a dust cap or an optical connector.

    Cover an optical module with a dust cap



    Cover an optical module with an optical connector



  • Lay the optical fibers on the Optical-fiber Distribution Frame (ODF) or coil them up in a fiber management tray. Make sure that the optical fibers are not squeezed.

  • If a receptacle or an optical connector has not been used for a long time and has not been covered with a dust cap, you should clean it before using it. A cotton swab is used to clean a receptacle, and a cleaning tissue is used to clean an optical connector.

    Cleaning Fiber Connectors

    1. Dip lint-free cotton in alcohol and let it dry for a moment.

    2. Use the cotton to clean the end face of a fiber connector.

    3. Clean the end face again using new dust-free cotton without alcohol. Ensure that the pins are clean. If necessary, use an air gun to remove the residual objects on the pins.

    Cleaning MT Connectors (MTP/MTRJ) That Have Guide Pins

    1. Fold a piece of lint-free cotton and dip it in alcohol. Then use the cotton to clean the pins.

    2. Clean the pins again using new piece of lint-free cotton without alcohol.

    3. Use an air gun to remove any residual objects on the pins.

    NOTE:
    During the cleaning process, insert the cotton swab and turn it slowly in the receptacle. Do not use too much force, because the receptacle may be damaged.


  • If, for no apparent reason, optical signals are lost during the operation of a device, use the preceding method to clean the receptacle or the optical connector. This will eliminate contamination as the cause of the signal loss.

Precautions for the overload-caused burnt optical module

  • When using an OTDR to test the connectivity or the attenuation of optical signals, disconnect the optical connector from the optical module. Otherwise, the optical module may be burnt.
  • When performing a self-loop test, use an optical attenuator. Do not loosen the optical connector.
  • It is required that a long-distance optical module have an input optical power of less than -7 dBm. If the input optical power is larger than -7 dBm, you need to add an optical attenuator. For example, if the transmiting optical power is X dBm and the optical attenuation is Y dB, the receiving optical power is X-Y, which must be smaller than -7dBm (X-Y<-7 dBm).

Other precautions

  • The optical connector should be horizontally inserted in the receptacle to avoid damages to the receptacle.

  • Mixed use of multi-mode and single-mode optical fibers is prohibited. Otherwise, faults such as signal loss may occur.

    Method of distinguishing optical modules in single mode and multi-mode.

    Table 11-1 Method of distinguishing optical modules in single mode and multi-mode

    Item

    Single mode

    Multi-mode

    Transmission distance

    10 km or longer

    Below 0.5 km

    Wavelength

    Non-850 nm

    850 nm

    Information on the label

    SM

    MM

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Updated: 2019-01-04

Document ID: EDOC1100059474

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