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S2956 Hardware Installation Manual
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Table of Contents
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Table of Contents
Chapter 1 S2956 Switch Intro ............................................................................. 1
1.1 Standard Configuration .......................................................................... 1
1.2 Characteristic Parameters of S2956 ........................................................... 2
Chapter 2 Installation Preparation ........................................................................ 4
2.1 Cautions ............................................................................................ 4
2.2 Safety Advice ...................................................................................... 4
2.2.1 Safety Principles........................................................................... 4
2.2.2 Safety Notices ............................................................................. 4
2.2.3 Safety Principles for Live Working ...................................................... 5
2.2.4 Electrostatic Discharge Prevention ..................................................... 6
2.3 Requirements for Common Locations......................................................... 6
2.3.1 Environment................................................................................ 6
2.3.2 Location Configuration Prevention ..................................................... 6
2.3.3 Cabinet Configuration .................................................................... 6
2.3.4 Power Requirements...................................................................... 7
2.4 Installation Tools and Device.................................................................... 7
Chapter 3 Installing S2956 ................................................................................. 8
3.1 Installation Flow of S2956 ....................................................................... 8
3.2 Installing the Chassis of the Switch ............................................................ 8
3.2.1 Installing the Chassis on the Desk ..................................................... 9
3.2.2 Installing the Chassis on the Cabinet .................................................. 9
3.3 Connecting the Port .............................................................................. 9
3.3.1 Connecting the Console Port............................................................ 9
3.3.2 Connecting the 1000M Ethernet SFP Port ...........................................11
3.3.3 Connecting Ethernet Electric Port .....................................................11
3.4 Checkup After Installation ......................................................................13
Chapter 4 Maintaining the Switch ........................................................................14
4.1 Opening the Chassis.............................................................................14
4.2 Closing the Chassis.............................................................................. 15
Chapter 5 Hardware Fault Analysis ......................................................................16
5.1 Fault Separation .................................................................................. 16
5.1.1 Faults Relative with Power and Cooling System .................................... 16
5.1.2 Faults Relative with Port, Cable and Connection ...................................16
5.2 LED Description ..................................................................................16
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Chapter 1 S2956 Switch Intro
The document describes the characteristics and parameters of S2956 and gives an
overview of S2956 .
1.1 Standard Configuration
The accessory ports of S2956 are formed of 48 1000M-Ethernet RJ45 ports, 8 10G
SFP+ ports and one console port. See table 1-1.
Table 1-1 Attributes of the necessary ports
Port Features
Gigabit Ethernet port UTP (RJ45) port with the LINK/ACT indicators
Gigabit Ethernet port SFP+ port: having LINK/ACT indicators
Console port An RJ45 port with a rate of 9600 bps
Additionally, S2956 has a grounding column, a socket and a power on-off at its back.
Figure 1-1 Front template of the S2956 switch
Table 1-2 Parts at the front template of the S2956 switch
No. Abbrev. Name Remarks
1 PWR
Power LED
If the switch is powered on, the indicator
is on.
2 SYS
System LED
If the LED is always on, the system is
being started.
If the LED flickers, the system works
normally.
3 CONSOLE Console port Manages the switch locally.
4
8 10G SFP+ optical ports
5 48 gigabit TX ports
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Figure 1-2 Back template of the S2956 switch
Table 1-3 Parts at the back template of the S2956 switch
No. Abbrev. Name Remarks
1 N/A AC power socket 100 to 240V AC
2
N/A
AC power switch
ON: means it is powered on; OFF:
means it is powered off.
3
N/A Grounding
column
The grounding must be fine.
1.2 Characteristic Parameters of S2956
Supported standard
IEEE 802.1d Spanning Tree Protocol
IEEE 802.1s multiple spanning trees
IEEE 802.1p Class of Service
IEEE 802.1q tagged VLAN
IEEE 802.3x Flow control
IEEE 802.3z asymmetric flow control
IEEE 802.3ad Link aggregation
Proto
col
stan
dard
Network management
standard
RFC 1 157 S NMP v1/v2
RFC 1213 MIB II
RFC 1757 RMON 1,2,3,9
Memory
Flash Memory: 16M Bytes
SDRAM: 256MBytes
Standard configuration
48 10/100/1000 Base-T ports
8 10G optical SFP+ ports
One console port
Hard
ware
featu
res
Dimensions
442.50*315*44mm
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Working
temperature/humidity
0℃-40 ; 10%℃ -85% non-condensing
Storage temperature/
humidity
-40℃-80 ; 5%℃ -95% non-condensing
Power Source’s
Characteristics
Input voltage: AC100-240V
Input frequency: 47-63Hz
Input current: 1.5A
Output voltage: 12VDC
Output current: 6A
Power consumption in full
load
55W
Net weight
4.2Kg
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Chapter 2 Installation Preparation
2.1 Cautions
Similar to other electronic products, the semiconductor chip easily gets damaged if you
power on and off abruptly and frequently. To restart up the switch of S2956, you have
to open the power on-off three or five seconds afte r the power is cut off.
Avoid severe collision or falling down from the height to protect the parts in the switch.
Use correct outside ports to connect the switch of S2956. Do not insert the Ethernet
plug into the console port (RJ45 8-line socket). Similarly, do not insert the console
cable into the console port (RJ45 8-line socket).
Note:
1) When you plug or dial out the power line, keep the power line horizontal with the
power socket.
2) When the lifetime of our products ends, handle them according to national laws
and regulations, or send these products to our company for collective processing.
2.2 Safety Advice
2.2.1 Safety Principles
z Keep dustless and clean during or after the installation.
z Put the cover at the safe place.
z Put tools at the right place where they are not easily falling down.
z Put on relatively tight clothes, fasten the tie or scarf well and roll up the sleeve,
avoiding stumbling the chassis.
z Put on the protective glasses if the environment may cause damage to your
eyes.
z Avoid incorrect operations that may cause damage to human or devices.
2.2.2 Safety Notices
The safety notices mentioned here means that improper operation may lead to body
damage.
z Read the installation guide carefully before you operate the system.
z Only professionals are allowed to install or replace the switch.
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z Pull out the AC power socket and close the direct-current power before
operating on the chassis or working beside the power source.
z The final configuration of products must comply with relative national laws and
regulations.
2.2.3 Safety Principles for Live Working
When you work under electricity, following the following principles:
z Put off ornaments, such as ring, necklace, watch and bracelet, before you
operate under live working. When metal articles connect the power to the ground,
short circuit happens and components may be damaged.
z Please cut off the direct-current connection when you operate the hull or work
near the power source.
z When the power is on, do not touch the power.
z Correctly connect the device and the power socket.
z Only professionals are allowed to operate and maintain the device.
z Read the installation guide carefully before the system is powered on.
Note:
z Check potential dangers, such as the humid floor, ungrounded extensible power
line and tatty power line.
z Install the emergent on-off at the working room for turning off the power when
trouble happens.
z Turn off the power on-off of the switch and plug off the power line before
installing or uninstalling the chassi s or working beside the power.
z Do not work alone if potential dangers exist.
z Cut off the power before checkout.
z If trouble happens, take the following measures:
A. Cut off the system’s power.
B. Alarm.
C. Take proper measures to help persons who are hit by the disaster. Artificial
respiration is needed if necessary.
D. Seek for medical help, or judge the loss and seek for available help.
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2.2.4 Electrostatic Discharge Prevention
Electrostatic discharge may damage devices and circuits. Improper treatment may
cause the switch to malfunction completely or discontinuously.
Move or locate the devices according to the measures of electrostatic discharge
prevention, ensuring the chassis connects the ground. Another measure is to wear the
static-proof hand ring. If there is no hand ring, use the metal clip with the metal cable to
clip the unpainted metal part of the chassis. In this case, the static is discharged to the
ground through the metal cable of the clip. You can also discharge the static to the
ground through your body.
2.3 Requirements for Common Locations
This part describes the requirements for the installation locations.
2.3.1 Environment
The switch can be installed on the desk or the cabinet. The location of the chassis,
cabinet planning and indoor cabling are very important for normal system’s function.
Short distance between devices, bad ventilation and untouchable control plate will
cause maintenance problems, systematic faulty and breakdown.
For location planning and device locating, refer to section 2.3.2 “Location Configuration
Prevention”.
2.3.2 Location Configuration Prevention
The following preventive measures assist you to design the proper environment for the
switch.
z Make sure that the workshop is well-ventilated, the heat of TX devices is
well-discharged and sufficient air circulation is provid ed for device cooling.
z Avoid to damage devices by following the electrostatic discharge prevention
procedure.
z Put the chassis at the place where cool air can blow off the heat inside the
chassis. Make sure the chassis is sealed because the opened chassis will reverse
the cool air flow.
2.3.3 Cabinet Configuration
The following content assists you to make a proper cabinet configuration:
z Each device on the cabinet gives off heat when it runs. Therefore, the sealed
cabinet must have the heat-discharge outlet and the cooling fan. Do not put the
devices too close, avoiding bad ventilation.
z When you install the chassis at the open cabinet, prevent the frame of the
cabinet from blocking the airway of the chassis.
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z Ensure that nice ventilation is provided for the devices installed at the bottom of
the cabinet.
z The clapboard separates exhaust gas and inflow air, and boost the cool air to
flow in the chassis. The best location of the clapboard is decided by the air flow
mode in the chassis, which can be obtained through dif f erent location tests.
2.3.4 Power Requirements
Make sure that the power supply has nice grounding and the power at the input side of
the switch is reliable. The voltage control can be installed if necessary. At least a 240 V
and 10A fuse or a breaker is provided in the phase line if you prepare the short-circuit
prevention measures for a building.
Caution:
If the power supply system does not have good grounding, or the input power disturbs
too much and excessive pulses exist, the error code rate of communication devices
increases and even the hardware system will be damaged.
2.4 Installation Tools and Device
The tools and devices to install the S2956 switch are not provided by the S2956 switch.
You yourself need to prepare them. The following are the tools and devices needed for
the typical installation of the S2956 switch:
z Screwdriver
z Static armguard
z Bolt
z Ethernet cable
z Other Ethernet terminal devices
z Control terminal
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Chapter 3 Installing S2956
Caution:
Only professionals are allowed to install or replace the device s of the switch.
3.1 Installation Flow of S2956
3.2 Installing the Chassis of the Switch
The chassis of the router can be installed on the desk or can be fixed to other cabinets.
Your network installation requirements can be met if you conduct the operations
according to the following procedure. It can be described in the following two parts:
z Installing the Chassis on the Desk
z Installing the Chassis on the Cabinet
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3.2.1 Installing the Chassis on the Desk
S2956 can be directly put on the smooth and safe desk.
Note:
Do not put things weighing 4.5 kg or over 4.5 kg on the top of the switch.
3.2.2 Installing the Chassis on the Cabinet
The chassis of the switch is fixed on the cabinet through the brackets. When you fix
the brackets, the front template of the switch faces forward. The detailed operations
are shown in Figure 3-1.
Figure 3-1 Fixing the chassis of the switch
Note: The switch shown in the previous figure does not represent real S2956.
After the brackets are installed, install the switch on the cabinet. See Figure 3-2.
Figure 3-2 Installing the switch on the cabinet
3.3 Connecting the Port
3.3.1 Connecting the Console Port
The switch of S2956 has a Console port.
The rate of the console port is a value ranging from 1200bps to 115200bps. It has a
standard RJ45 plug. After you connect the console port to the serial port of PC through
a console cable, you can configure and monitor the switch of S2956 by running a
terminal emulation software, such as super Windows terminal. The cable is provided
according to the host. The communication parameters of the terminal serial po rt can be
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set to a rate of 9600bps, eight data bits, one stop bit, no sum check bit and traffic
control.
Figure 3-3 Connecting the console p ort of S2956 and computer
Note: The switch shown in the previous figure does not represent real S2956 switch.
Table 3-1 Definition of the pins of the console port
No. Name Symbol Remarks
1 Data receiving RXD Input
2 No connect
3 Signal ground SG GND
4 No connect
5 Data transmitting TXD Output
Note:
Because the console port of S2956 bears no flow control, you need to set Data flow
control to none when using a superior terminal to manage S2956 configurations, or the
single-pass problem will arise from the superior terminal.
Otherwise, the single-pass problem will arise on the super terminal. The cable is used
to connect the console port of the S2956 switch and the outside console terminal
device. One end of the cable is a mini-USB plug and the other end is a 9-hole plug
(DB9). The RJ45 plug is put into the socket of the console port on the S2956 switch.
The inner line connection in the cable is shown in figure 3-4. The console cable is
numbered as RLC0301.
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Figure 3-4 External wiring of the console port
3.3.2 Connecting the 1000M Ethernet SFP Port
S2956 provides 8 10G SFP+ ports. You can insert the SFP+ optical module into the
port and then connect the module to other Ethernet terminal devices through the
optical fiber if you want to use the SFP+ port.
Note: The switch shown in the previous figure does not represent real S2956 switch.
3.3.3 Connecting Ethernet Electric Port
The S2956 switch has 48 10/100/1000Base-T ports. The indicators are labeled with
numbers 1-48, indicating the link/ACT state of the port. You can connect other Ethernet
terminal devices to the UTP port through the cut-through or cross network cable. The
numbering order of the pins in the UTP port is the same as the console port.
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Figure 3-5 RJ-45 connector of Ethernet TX port
Because 48 10/100/1000Base-T ports of S2956 support the MDI/MDIX
auto-identification of the cable, S2956 can adopt five classes of direct-through/cross
network cables when it connects other Ethernet terminals.
Figure 3-6 Connecting the 1000Base-TX port and other Ethernet terminals
Note: The switch shown in the previous figure does not represent real S2956 switch.
Table 3-2 Definition of the pins of the 1000M RJ45 port
No.
Pin name Symbol
1 Receiving and transmitting
the normal phase of data 0
TP0+
2 Receiving and transmitting
the paraphase of data 0
TP0-
3 Receiving and transmitting
the normal phase of data 1
TP1+
4 Receiving and transmitting
the normal phase of data 2
TP2+
5 Receiving and transmitting
the paraphase of data 2
TP2-
6 Receiving and transmitting TP1-
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the paraphase of data 1
7 Receiving and transmitting
the normal phase of data 3
TP3+
8 Receiving and transmitting
the paraphase of data 3
TP3-
The direct-through or cross network cable has the function of auto-identification, so the
five classes of direct-through/cross network cables can be used to connect other
Ethernet devices.
3.4 Checkup After Installation
Before electrically starting up the switch, perform the following checkups after the
switch is installed:
z If the switch is installed on the cabinet, check whether the installation point
between the cabinet and the switch is strong. If the switch is installed on the desk,
check whether there is enough space for the switch to discharge its heat and
whether the desk is stable.
z Check whether the connected power meets the power requirements of the
switch.
z Check whether the grounding line is correctly connected.
z Check whether the switch is correctly connected to other terminal devices.
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Chapter 4 Maintaining the Switch
Caution:
z Before opening the chassis, make sure that you have released the static you
carried and then turn off the power on-off of the switch. Before operating any step
in Appendix B, read the section “Safety Advice”.
z Before performing operations beside the power source or on the chassis, turn off
the power on-off and plug out the power cable.
4.1 Opening the Chassis
This section describes how to open the cover of the switch, required tools and
operation methods.
Caution:
When the power cable still connects the power source, do not touch it.
When you open the cover the switch, you may use the following tools: These tools are:
z Crossed screwdriver
z Static armguard
Perform the following steps to open the cover of the switch:
1) Turn off the power on-off of the switch.
2) Plug out all cables connected the back of the switch.
3) Take out the bolt from the chassis with the screwdriver.
Note:
The chassis comprises of two parts: cover and bottom.
4) Open the cover by holding two sides of the cover towards the direction of the
arrow key shown in the following figure:
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Note: The switch shown in the previous figure does not represent real S2956 switch.
5) When the cover is opened, put it aside. The mainframe of the system appears.
Note:
After taking off the cover, put it horizontally and avoid it to be crushed or collided.
Otherwise, the chassis is hard to install.
4.2 Closing the Chassis
The section mainly describes how to put the cover and close the chassis. Do as
follows:
1) Put them well according to their locations and joint them together along their
sides.
2) See the following figure.
3) When the cover and the bottom are closely tied, let the cover slide the slot of the
front template at the bottom.
4) Nail the bolt and screw it tightly with the screwdriver.
5) Reinstall the switch on the cabinet or the desk.
6) Reconnect all cables of the switch.
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Chapter 5 Hardware Fault Analysis
The part describes how to remove the fault from the switch.
5.1 Fault Separation
The key for resolving the systematic faults is to separate the fault from the system. You
can compare what the system is doing with what the system should do to detect the
fault. You need to check the following subsystems:
z Power and cooling systems—power and fan
z Port, cable and connection—ports on the front template of the switch and the
cables connecting these ports
5.1.1 Faults Relative with Power and Cooling System
Do the following checkups to help remove the fault:
z When the power on-off is at the “ON” location, check whether the fan works
normally. If the fan does not work well, check the fan.
z If the switch is too hot, check whether the air outlet and air inlet are clean and
then do relative operations in section 2.3 “Requirements for Common Locations”.
The working temperature of the switch is from 0 to 40 Celsius degrees.
z If the switch cannot be started and the PWR LED is off, check the power.
5.1.2 Faults Relative with Port, Cable and Connection
Do the following checkups to help remove the fault:
z If the port of the switch cannot be linked, check whether the cable is correctly
connected and whether the peer connection is normal.
z If the power on-off is at the “ON” location, check the power source and the
power cable.
z If the console port does not work after the system is started up, check whether
the console port is set to a baud rate of 9600 bps, eight data bits, no sum check bit
and one stop bit.
5.2 LED Description
The LED indicator shows that the switch is running. The following table shows the
indicators of the S2956 switch and their description:
No. Abbrev. Name Remarks
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1 PWR Power LED
If the switch is powered on, the indicator
is on.
2 SYS System LED
If the indicator is always on, the system
is being started.
If the LED flickers, the system works
normally.
3 LINKACT
Indicator at the top of each
port
If the LED is always on, the link on the
port is normal.
If the LED is off, the port is not
connected.
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Disclaimer of warranty
provides no evident or hinted guarantee towards the contents of this manual. In no
event, except for the company’s breach of law, shall the company be liable for
incidental, consequential, indirect or special damages of any kind or for loss of profits
or revenue or loss of business arising out of or relating to this manual.
Note: Customer shall not be notified of this manual’s content amendments.
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