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Table of Contents
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Table of Contents
Chapter 1 S3756P Switch Introduction ............................................................................................. 1
1.1 Appearance Description for Standard Configuration ............................................................ 1
1.2 S3756P Systematic Characteristic Parameters ................................................................... 2
1.3 ROHS Description ................................................................................................................ 4
Chapter 2 Installation Preparation ..................................................................................................... 5
2.1 Caution of Usage ................................................................................................................. 5
2.2 Safety Advice ....................................................................................................................... 5
2.2.1 Safety Principles ........................................................................................................ 5
2.2.2 Safety Notices ............................................................................................................ 5
2.2.3 Safety Principles for Live Working ............................................................................. 6
2.2.4 Electrostatic Discharge Damage Prevention ............................................................. 7
2.3 Requirements for Common Locations ................................................................................. 7
2.3.1 Environment ............................................................................................................... 7
2.3.2 Location Configuration Prevention ............................................................................. 7
2.3.3 Cabinet Configuration ................................................................................................ 7
2.3.4 Power Requirements ................................................................................................. 8
Power Requirements .......................................................................................................... 8
2.4 Installation Tools and Device ................................................................................................ 8
Chapter 3 Installing the S3756P Switch .......................................................................................... 10
3.1 Installation Flow of S3756P ................................................................................................ 10
3.2 Installing the Machine Box of the Switch ........................................................................... 10
3.2.1 Installing the Machine Box on the Desk ................................................................... 10
3.2.2 Installing the Machine Box on the Cabinet .............................................................. 11
3.3 Connecting the Port ........................................................................................................... 11
3.3.1 Connecting the Console Port ................................................................................... 11
3.3.2 Connecting 10G Ethernet SFP+ Ports ..................................................................... 13
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3.3.3 Connecting Gigabit Ethernet TX Ports ..................................................................... 13
3.4 Checking after Installation .................................................................................................. 15
Chapter 4 Maintaining Switch .......................................................................................................... 16
4.1 Opening the Machine Box .................................................................................................. 16
4.2 Closing Machine Box ......................................................................................................... 17
Chapter 5 Hardware Fault Analysis ................................................................................................. 18
5.1 Fault Separation ................................................................................................................. 18
5.1.1 Faults Relative with Power and Cooling System ..................................................... 18
5.1.2 Faults Relative with Port, Cable and Connection .................................................... 18
5.2 Indicator Description .......................................................................................................... 19
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Chapter 1 S3756P Switch Introduction
The section describes the characteristics and parameters of S3756P and gives an overview of
S3756P.
1.1 Appearance Description for Standard Configuration
The built-in ports of S3756P are: 48 gigabit Ethernet RJ45 ports, 8 10GE Ethernet SFP+ ports,
1 Console port. See table 1-1.
Table 1-1 Attributes of the built-in port
Port
Attribute
Gigabit Ethernet port
RJ45 interface, with LINK/ACT indicators
10G Ethernet port
SFP+ interface, with LINK/ACT indicators
Console port
A rate of 9600bps, mini USB interface
Besides, S3756P has a grounding column, two power sockets and two power on-off at its
back (ON means power on; OFF means power off.).
Figure 1-1 The front template of the S3756P switch
Table 1-2 Parts at the front template of S3756P switch
No.
Name
Description
1
Gigabit Ethernet port
RJ45 interface
2
Console port
A rate of 9600bps, mini USB interface
3
POE LED
Indicates whether POE sub-card is on.
4
SYS LED
Indicates the system LED
5
PWR LED
If the indicator is always on, the system is
normally started up.
If the indicator flickers, the system works
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normally.
6
Rst button
With swap function. It can be used to
switch POE indicator.
Figure 1-2 The back template of the S3756P switch
Table 1-3 Parts at the back template of the S3756P switch
No.
Abbrev.
Name
Description
1
SFP+
8 10G ports
8 10G ports
2 / The grounding column
The grounding column must be fine.
3
POWER
AC power on-off
AC100～240V
4
POWER
AC power on-off
AC100～240V
Note: S3756P supports dual-power supply.
1.2 S3756P Systematic Characteristic Parameters
Protocol
standard
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
IP routing protocol standard
RFC 1058 RIP
RFC 1723 RIP v2
RFC 1583 OSPF v2
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Network management standard
RFC 1157 SNMP v1/v2
RFC 1213 MIB II
RFC 1757 RMON 1,2,3,9
Hardware
Characteristics
Memory
Flash Memory: 16M Bytes
SDRAM: 512Mbytes;
Standard configuration
48 10/100/1000BASE-T ports
8 10GE Ethernet SFP+ ports
1 Console port
Dimensions mm (W×D×H)
442.50×315×44
Operating temperature/humidity
0℃～40℃; 10%～85% non-condensing
Storage temperature/humidity
-40℃～80℃; 5%～95% non-condensing
Power characteristics
Input voltage: AC100～240V,
Input frequency: 47～63Hz,
Input current:2A (MAX);
Output voltage: 12VDC,
Output current: 10A(MAX); or
Output voltage: 53.5VDC,
Output current: 7.11A(Max)
Power consumption
500W
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1.3 ROHS Description
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Chapter 2 Installation Preparation
2.1 Caution of Usage
Similar to other electronic products, the semiconductor chip easily gets damaged if you power
on or off abruptly and frequently. To restart up the switch of S3756P, you have to open the power
on-off after the power is cut down for three to five seconds.
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 S3756P. Do not put the Ethernet plug into
the console port (RJ45 8-line socket). Similarly, do not put the console cable into the console port
(RJ45 8-line socket).
Note:
1) When you plug or dial 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
Keep dustless and clean during or after the installation.
Put the cover at the safe place.
Put tools at the right place where they are not easily falling down.
Put on relatively tight clothes, and fasten the tie or scarf well and roll up the sleeve,
avoiding stumbling the machine box.
Put on the protective glasses if the environment may cause damage to your eyes.
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.
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Read the installation guide carefully before you operate the system.
Only professionals are allowed to install or replace the switch.
Pull out the AC power socket and close the direct-current power before operating on
the machine box or working beside the power source.
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:
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.
Pull out the AC power socket and close the direct-current power before operating on
the machine box or working beside the power source.
When the power is on, do not touch the power.
Correctly connect the device and the power socket.
Only professionals are allowed to operate and maintain the device.
Read the installation guide carefully before the system is powered on.
Note
:
1) Check potential dangers, such as the humid floor, ungrounded extensible power line
and tatty power line.
2) Install the emergent on-off at the working room for turning off the power when trouble
happens.
3) Turn off the power on-off of the switch and plug off the power line before installing or
uninstalling the machine box or working beside the power.
4) Do not work alone if potential dangers exist.
5) Cut off the power before checkout.
6) 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 Damage 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 machine box 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 machine box. 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 machine box,
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.
Make sure that the workshop is well-ventilated, the heat of electrical devices is
well-discharged and sufficient air circulation is provided for device cooling.
Avoid to damage devices by following the electrostatic discharge prevention procedure.
Put the machine box at the place where cool air can blow off the heat inside the machine
box. Make sure the machine box is sealed because the opened machine box will reverse
the cool air flow.
2.3.3 Cabinet Configuration
The following content assists you to make a proper cabinet configuration:
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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.
When you install the machine box at the open cabinet, prevent the frame of the cabinet
from blocking the airway of the machine box.
Ensure that nice ventilation is provided for the devices installed at the bottom of the
cabinet.
The clapboard separates exhaust gas and inflow air, and boost cool air to flow in the
machine box. The best location of the clapboard is decided by the air flow mode in the
machine box, which can be obtained through different location tests.
2.3.4 Power Requirements
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, 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 S3756P switch are not provided by the S3756P switch.
You yourself need to prepare them. The following are the tools and devices needed for the typical
installation of the S3756P switch:
Screwdriver
Static armguard
Bolt
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Ethernet cable
Other Ethernet terminal devices
Control terminal
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Chapter 3 Installing the S3756P Switch
Caution
:
Only professionals are allowed to install or replace the devices.
3.1 Installation Flow of S3756P
3.2 Installing the Machine Box of the Switch
The installation of the machine box has two modes:
Installing the machine box on the desk
Installing the machine box on the cabinet
3.2.1 Installing the Machine Box on the Desk
The S3756P switch can be directly put on the smooth and safe desk.
Note
:
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Do not put things weighing 4.5 kg or over 4.5 kg on the top of the switch.
3.2.2 Installing the Machine Box on the Cabinet
The machine box 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 machine box of the switch
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 S3756P has a console port.
The rate of the console port is a value ranging from 1200bps to 115200bps. It has a standard
mini USB 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 S3756P 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 port can be set to a rate of 9600bps, eight data
bits, one stop bit, no sum check bit and traffic control.
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Figure 3-3 Connecting the console port of S3756P and computer
Note: The machine in the figure does not represent the material S3756P.
Table 3-1 Pins of the console port
No.
Name
Remarks
1
RXD
Input
2 No connect
3
SG
GND
4 No connect
5
TXD
Output
Note:
The console port of the S3756P switch does not support traffic control. Therefore, you must
set the option data traffic control to none when you configure the switch with the super terminal.
Otherwise, the single-pass problem will arise on the super terminal.
The cable is used to connect the console port of S3756P 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
Mini USB plug is put into the socket of the console port on S3756P. The inner line connection in
the cable is shown in figure 3-4. The product NO. of the monitoring cable is RLC8501.
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Figure 3-4 Cable connection at the console port
3.3.2 Connecting 10G Ethernet SFP+ Ports
S3756P switch has 8 10G SFP+ ports. Each port has its corresponding indicator: TE1~TE8.
You can connect the SFP+ optical module to the SFP+ port and then you can connect other
Ethernet terminal devices through the optical cable.
Figure 3-5 Connecting the 10G SFP+ port and other Ethernet terminals
Note: The machine in the figure does not represent the material S3756P.
3.3.3 Connecting Gigabit Ethernet TX Ports
S3756P provides 48 10/100/1000 Base-T ports. The indicators are labeled with numbers 1-48,
indicating the link/ACT state of the port. The indicators are used to indicate the LINK/ACT state.
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The ports can connect other Ethernet terminal devices through the UTP port and the
direct-through or cross network cable. The numbering order of the pins in the UTP port is the
same as the console port, as shown in the following figure:
Figure 3-6 RJ-45 connector of the console port
Because the 48 10/100/1000Base-T ports of S3756P support the MDI/MDIX self-identification
of the cable, S3756P can adopt five types of direct-through/cross network cables when it
connects other Ethernet terminals.
Figure 3-7 Connecting the 1000Base-TX port and other Ethernet terminals
Note: The machine in the figure does not represent the material S3756P.
Table 3-2 Pins of gigabit RJ45
No.
Pin Name
Remark
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1
Sending/receiving the normal phase of data 0
TP0+
2
Sending/receiving the paraphase of the data 0
TP0-
3
Sending/receiving the normal phase of data 1
TP1+
4
Sending/receiving the normal phase of data 2
TP2+
5
Sending/receiving the paraphase of the data 2
TP2-
6
Sending/receiving the paraphase of the data 1
TP1-
7
Sending/receiving the normal phase of data 3
TP3+
8
Sending/receiving the paraphase of the data 3
TP3-
3.4 Checking after Installation
Before electrically starting up the switch, perform the following checkups after the switch is
installed:
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.
Check whether the connected power meets the power requirements of the switch.
Check whether the grounding line is correctly connected.
Check whether the switch is correctly connected to other terminal devices.
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Chapter 4 Maintaining Switch
Caution:
(1) Before opening the machine box, 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”.
(2) Before performing operations beside the power supply or on the machine box, turn off
the power on-off and plug out the power cable.
4.1 Opening the Machine Box
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 supply, do not touch it.
When you open the cover the switch, you may use the following tools:
Crossed screwdriver
Static armguard
Perform the following steps to open the cover of the switch:
(1) Turn off the power on-off of the switch. (Switch it to the
OFF
side)
(2) Plug out all cables connected the back of the switch.
(3) Take out the bolt from the machine box with the screwdriver.
Note:
The machine box 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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(5) When the cover is opened, put it aside. The mainboard of the system appears.
Note:
After taking off the cover, put it horizontally and avoid it to be crushed or collided. Otherwise,
the machine box is hard to install.
4.2 Closing Machine Box
The section mainly describes how to put the cover and close the machine box. Do as follows:
(1) Put them well according to their locations and joint them together along their sides. See
the following figure.
(2) When the cover and the bottom are closely tied, let the cover slide the slot of the front
template at the bottom.
(3) Nail the bolt and screw it tightly with the screwdriver.
(4) Reinstall the switch on the cabinet or the desk.
(5) 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:
Power and cooling systems—power and fan
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:
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.
The working temperature of the switch is from 0 to 40 Celsius degrees (32-104
Fahrenheit degrees). 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”.
If the switch cannot be started and the PWR indicator is off, check the power.
5.1.2 Faults Relative with Port, Cable and Connection
Do the following checkups to help remove the fault:
If the port of the switch cannot be linked, check whether the cable is correctly
connected and whether the peer connection is normal.
If the power on-off is at the “ON” location, check the power source and the power cable.
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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, one
stop bit and no traffic control.
5.2 Indicator Description
The following table shows the indicators of the S3756P switch and their description:
No.
Abbrev.
Name
Description
1
PWR
Power indicator
When the switch is powered on, the
indicator is on.
2
SYS
System indicator
When the indicator is always on, the
system is being started up.
When the indicator flickers, the system
works well.
3
POE
POE indicator
If the indicator is always on, the port is
powered on.
If the indicator is off, the port is not
powered on.
3
LINKACT
Upper indicator for each
port
If the indicator is always on, the port is
linked.
If the indicator is off, the link is not linked.
Copyright Claims
Without the written approval of the company , any person or group cannot transcribe, copy or
change partial or all contents of this manual, and must not broadcast it in any manner.
Trademark claims
Trademarks, product names, service names and company names, which are written in this
manual but do not belong to the company, belong to their owners respectively.
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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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