About This Document
Intended Audience
This document describes hardware components of the routers, including the chassis, power modules, fan modules, cards, cables, and optical modules. You can find useful information about hardware components from this document.
This document is intended for:
- Network planning engineers
- Hardware installation engineers
- Commissioning engineers
- Onsite maintenance engineers
- System maintenance engineers
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol |
Description |
|---|---|
Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury. |
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Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury. |
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Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury. |
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Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury. |
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Supplements the important information in the main text. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration. |
Declaration
- This manual is only a reference for you to configure your devices. The contents in the manual, such as web pages, command line syntax, and command outputs, are based on the device conditions in the lab. The manual provides instructions for general scenarios, but do not cover all usage scenarios of all product models. The contents in the manual may be different from your actual device situations due to the differences in software versions, models, and configuration files. The manual will not list every possible difference. You should configure your devices according to actual situations.
- The specifications provided in this manual are tested in lab environment (for example, the tested device has been installed with a certain type of boards or only one protocol is run on the device). Results may differ from the listed specifications when you attempt to obtain the maximum values with multiple functions enabled on the device.
- In this document, public IP addresses may be used in feature introduction and configuration examples and are for reference only unless otherwise specified.
Device Dimension Conventions
The dimensions described in this document are theoretically typical dimensions and do not include dimension tolerances.
Device Indicator Frequency Convention
The fast blinking frequency and slow blinking frequency of indicators (excluding network interface indicators) described in this document are as follows:
- Fast blinking frequency: 4 Hz
- Slow blinking frequency: 0.5 Hz