7 Boards
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Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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7
Boards
About This Chapter
This chapter describes the boards of the device.
7.1 Overview
This chapter describes the appearance and structure of boards and subcards, filler panel, board
and subcard specifications, rules for numbering slots and interfaces.
7.1.1 Rules for Numbering Slots and Interfaces
Numbering Rule of Service Interfaces on the NE20E-S4
Service interfaces on the NE20E-S4 are numbered in the following format: 0/subcard slot
number/interface number on the subcard.
A subcard slot number is the number of the slot where an interface's subcard resides. A
subcard slot number ranges from 1 to 4.
An interface number on the subcard starts with 0, and its maximum value is determined
by the actual number of interfaces on the subcard.
The following figure shows how a service interface is numbered on the NE20E-S4.