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S12700 Series Agile Switches Hardware Description

This document describes hardware components of the S12700, including the cabinet, chassis, power supply facilities, fan modules, cards, cables, and pluggable modules for interfaces. You can find useful information about S12700 hardware components from this document.
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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).
LST7M48TX6S1-48-Port 100BASE-TX/1000/2.5G/5G/10GBASE-T Interface Card (X6S, RJ45)

LST7M48TX6S1-48-Port 100BASE-TX/1000/2.5G/5G/10GBASE-T Interface Card (X6S, RJ45)

Version Mapping

Table 7-220  Switch chassis and software versions matching the card

Card Name

S12700 Chassis

LST7M48TX6S1

Supported in V200R019C00 and later versions

Introduction

The LST7M48TX6S1 provides high performance, large entry sizes, and a large buffer for data switching. This card is highly integrated and has a large port density.

The LST7M48TX6S1 can be installed in:

  • Slots 01 to 04 in an S12704 chassis.
  • Slots 01 to 08 in an S12708 chassis.
  • Slots 01 to 10 in an S12710 chassis.
  • Slots 01 to 12 in an S12712 chassis.
Figure 7-109  Appearance of the LST7M48TX6S1

Functions

The LST7M48TX6S1 provides the following functions:
  • Communicates with the MPU and works under the control of the MPU.
  • Searches for routes and destination addresses of data packets for forwarding.
  • Forwards data packets.
Table 7-221  Functions of the LST7M48TX6S1
Function Description

Basic functions

Provides forty-eight MultiGE electrical ports for data access and line-rate switching.

Distributed forwarding

Performs concurrent data forwarding using a distributed data plane.

Hot swapping

Supported

Indicators and Ports

Figure 7-110  Indicators on the LST7M48TX6S1 panel

Table 7-222  Indicators on the LST7M48TX6S1 panel

Number

Indicator

Color

Description

1

LINK/ACT indicator of an upper electrical port

Green

Steady on: A link has been established on the port.

Blinking: The port is transmitting and receiving data.

2

LINK/ACT indicator of a lower electrical port

3

RUN/ALM: running status indicator

Green

Steady on: The card has been powered on, but the software is not running.

Slow blinking: The card software is running properly.

Fast blinking: The card software is starting.

Red

Steady on: The card has failed and the fault requires manual intervention.

Yellow

Steady on: The card is powered off. (For example, the card has been forcibly powered off using the power off command or is about to start.)

Figure 7-111  Ports on the LST7M48TX6S1 panel

1 Forty-eight 100M/1000M/2.5GE/5GE/10GE BASE-T electrical ports (MultiGE ports)
100M/1000M/2.5G/5G/10G BASE-T port (MultiGE port)
A 100M/1000M/2.5G/5G/10G BASE-T port (MultiGE port) sends and receives service data at 100 Mbit/s, 1 Gbit/s, 2.5 Gbit/s, 5 Gbit/s, or 10 Gbit/s, and must use an Ethernet Cable. If the 2.5 Gbit/s, 5 Gbit/s, or 10 Gbit/s speed is required, the port must use an Ethernet cable of Cat5e or higher category. Table 7-223 describes the attributes of a 100M/1000M/2.5G/5G/10G BASE-T port.
Table 7-223  Attributes of a 100M/1000M/2.5G/5G/10G BASE-T port

Attribute

Description

Connector type

RJ45

Standards compliance

IEEE802.3u, IEEE802.3ab, IEEE802.3bz, IEEE802.3an, Nbase-t

Working Mode

100/1000/2500/5000/10000 Mbit/s auto-sensing

Table 7-224 lists the maximum transmission distances of different cables on MultiGE ports.
Table 7-224  Maximum transmission distances of different cables on MultiGE ports
Cable Type (6-a-1 Bundle) MultiGE Port (Different Rates)
48*100M/1000M 48x2.5GE 48x5GE 48x10GE
Category 5e unshielded twisted pair (Cat5e UTP) 100 m 100 m

Not supported due to high risk

Not supported
Category 5e shielded twisted pair (Cat5e STP) 100 m 100 m 100 m Not supported
Category 6 unshielded twisted pair (Cat6 UTP) 100 m 100 m

Not supported due to high risk

Not supported
Category 6 shielded twisted pair (Cat6 STP) 100 m 100 m 100 m Not supported
Category 6A unshielded twisted pair (Cat6A U/UTP) 100 m 100 m

Not supported due to high risk

Not supported
Category 6A foiled/unshielded twisted pair (Cat6A F/UTP) 100 m 100 m 100 m

Not supported due to high risk

Category 6A shielded twisted pair (Cat6A STP) 100 m 100 m 100 m 100 m
Category 7 twisted pair (Cat7) 100 m 100 m 100 m 100 m
NOTE:

6-a-1 stands for the six-around-one cable bundle mode, with one cable in the center and six cables bundled evenly around it.

Some cables pose high risks and are not supported for the following reasons:
  • 802.3bz requires that the ALSNR value for alien crosstalk between Ethernet cables be greater than 0, but the standards for Cat5e and Cat6 unshielded twisted pairs do not specify the required ALSNR value. Therefore, such cables may not meet the crosstalk requirement in 802.3bz, causing severe problems such as continuous packet loss or interface flapping.
  • According the cabling specification TIA TSB-5021, using Cat5e and Cat6 cables for 5G poses high risks.
  • Currently, no clear onsite testing or evaluation method is available for checking whether ALSNR of cables conforms to 802.3bz.

If Cat5e and Cat6 unshielded twisted pairs do not meet the 5G requirement, you are advised to replace them with shielded twisted pairs or reduce the rate of interfaces to 2.5G.

Specifications

Table 7-225  Specifications of the LST7M48TX6S1

Item

Description

Physical specifications

  • Dimensions (W x D x H): 394.7 mm x 426.8 mm x 35.1 mm (15.5 in. x 16.8 in. x 1.4 in.)
  • Weight: 3.7 kg (8.16 lb)
  • Maximum power consumption: 190 W

Environment specifications

  • Operating temperature: 0°C to 45°C (32°F to 113°F)
  • Operating relative humidity: 5% RH to 95% RH (noncondensing)
  • Storage temperature: -40°C to +70°C (-40°F to +158°F)
  • Storage relative humidity: 5% RH to 95% RH (noncondensing)

Ordering Information

Card ordering information is subject to updates with product version upgrades. The ordering information provided in this manual is for reference only. To obtain the latest ordering information, contact Huawei switch distributors or Huawei local office.

Table 7-226  Ordering information
Part Number Card Name Card Model
03033BTK

48-Port 100BASE-TX/1000/2.5G/5G/10GBASE-T Interface Card (X6S, RJ45)

LST7M48TX6S1
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Updated: 2019-05-15

Document ID: EDOC1000047496

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