H3c-technologies H3C SecPath M9000 Series Manual de usuario Pagina 82
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74
2. Strip off an appropriate length of the cable sheath. The length is typically that of the RJ-45
connector.
3. Untwist the pairs so that they can lie flat, and arrange the colored wires based on the wiring
specifications.
4. Cut the top of the wires even with one another. Insert the wires into the RJ-45 end and make sure
the wires extend to the front of the RJ-45 end and make good contact with the metal contacts in the
RJ-45 end and in the correct order.
5. Crimp the RJ-45 connector with the crimping pliers until you hear a click.
6. Repeat the above steps with the other end of the cable.
7. Use a cable tester to verify the connectivity of the cable.
Optical fiber
CAUTION:
Use the same types of transceiver modules, pigtail cords, patch cords, and fiber cables. If you use
single-mode optical fibers, the transceiver modules, pi
g
tail cords, patch cords, and fiber cables must be
single-mode.
Optical fiber
Optical fibers are widely used in fiber-optic communications, which are advantageous for long-distance
communications.
Optical fibers can be classified into the following types:
• Single mode fiber—It has a core size of 10 μm or smaller, and has a lower modal dispersion. It
carries only a single ray of light. It is mostly used for communication over longer distances.
• Multi-mode fiber—It has a core size of 50 μm or 62.5 μm or higher, and has a higher modal
dispersion than single-mode optical fiber. It is mostly used for communication over shorter
distances.
Table 52 Allowed maximum tensile force and crush load
Period of force Tensile load (N)
Crush load (N/mm)
Short period 150 500
Long term 80 100
Optical fiber cable
An optical fiber cable is a cable containing one or more optical fibers. The optical fiber elements are
typically individually coated with plastic layers and contained in a protective tube. Optical fiber cables
fall into single-mode and multi-mode.
- Security Gateway Series 1
- Preface 3
- GUI conventions 4
- Symbols 4
- Network topology icons 4
- Port numbering in examples 4
- Obtaining documentation 5
- Technical support 5
- Documentation feedback 5
- Contents 6
- Preparing for installation 9
- ESD prevention 10
- Laser safety 10
- Weight support 10
- Temperature 10
- Humidity 11
- Cleanness 11
- Grounding 12
- Cooling 12
- Tools and equipment 14
- Installing the gateway 15
- Installing cage nuts 18
- Installing mounting brackets 20
- Grounding the gateway 23
- Installing FRUs 24
- Installing a power module 26
- Installing a CFP module 28
- Connecting networking cables 29
- Connecting power cables 31
- Setting terminal parameters 34
- Powering on the gateway 37
- Logging in using Telnet 38
- NOTE: 40
- Troubleshooting 41
- Power supply system failure 42
- Fan failure 43
- MPU failure 43
- Interface failure 44
- Replacing FRUs 46
- Replacing a card 47
- (3) Take out the card 48
- Replacing a fan tray 49
- Replacing an air filter 50
- Replacing a CFP module 52
- Chassis views 53
- Weights and dimensions 54
- Card power consumption 56
- Fan tray power consumption 56
- Heat dissipation 57
- Environmental specifications 57
- M9006 62.3 dBA 75.5 dBA 58
- M9010 61.6 dBA 72.6 dBA 58
- M9014 66 dBA 79 dBA 58
- Service modules 59
- Switching fabric modules 61
- Power modules 61
- Fan trays 62
- Air filters 62
- Transceiver modules 63
- DC power cable 68
- AC power cable 68
- Appendix C LEDs 72
- Service module LEDs 73
- LPU LEDs 74
- Switching fabric module LEDs 75
- Fan tray status LEDs 76
- Power module LEDs 76
- Appendix D Cables 78
- RJ-45 connector 79
- Cable pinouts 79
- Cable type 79
- Based on pinouts 80
- Pin assignments 81
- Optical fiber 82
- Patch cord 83
- Pigtail cord 83
- Fiber connector 83
- SFP+ cable 84
- QSFP+ cable 85
- QSFP+ to SFP+ cable 85
- General cabling requirements 86
- Prerequisites 86
- Cable management guidelines 86
- 10 80 to 150 89
- 10 to 30 150 to 200 89
- 30 200 to 300 89
- Removing the power cable 90
- Removing the console cable 90
- Removing the grounding cable 90
- Repackaging the power module 91
- Repackaging the card 92
- Removing the air filter 93
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