Bdcom S2928 Assembly instructions

S2928 Hardware Installation Manual

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Table of Contents
Table of Contents................................................................................................................................I
Chapter 1 S2928 Introduction ...........................................................................................................1
1.1 Appearance Description for Standard Configuration............................................................1
1.2 S2928 Systematic Characteristic Parameters .....................................................................3
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
2.4 Installation Tools and Device................................................................................................8
Chapter 3 Installing the S2928 Switch ..............................................................................................9
3.1 Installation Flow of S2928....................................................................................................9
3.2 Installing the Machine Box of the Switch .............................................................................9
3.2.1 Installing the Machine Box on the Desk...................................................................10
3.2.2 Installing the Machine Box on the Cabinet ..............................................................10
3.3 Connecting the Port ...........................................................................................................10
3.3.1 Connecting the Console Port...................................................................................10
3.3.2 Connecting Gigabit Ethernet SFP+ Port..................................................................12

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3.3.3 Connecting Gigabit Ethernet TX Port ......................................................................12
3.3.4 Connecting Gigabit Ethernet SFP Port....................................................................14
3.4 Checking After Installation..................................................................................................14
Chapter 4 Maintaining Switch..........................................................................................................15
4.1 Opening the Machine Box..................................................................................................15
4.2 Closing the Machine Box ...................................................................................................16
Chapter 5 Hardware Fault Analysis.................................................................................................17
5.1 Fault Separation.................................................................................................................17
5.1.1 Faults Relative with Power and Cooling System.....................................................17
5.1.2 Faults Relative with Port, Cable and Connection ....................................................17
5.2 Indicator Description ..........................................................................................................17

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Chapter 1 S2928 Introduction
The section describes the characteristics and parameters of S2928 and gives an
overview of S2928.
1.1 Appearance Description for Standard Configuration
The built-in ports of S2928 are: 20 gigabit-Ethernet TX port, 4 10G Ethernet SFP+
ports, 4 gigabit combo TX/ SFP+ ports, 1 Console port. See table 1-1.
Table 1-1 Attributes of the built-in port
Port Attribute
Gigabit-Ethernet TX
port
10/100/1000M auto-adaptation, MDI/MDIX
auto-identification, UTP (RJ45) port, LINK/ACT
indicators
Gigabit combo TX/SFP
port
TX port: 10/100/1000M auto-adaptation, MDI/MDIX
auto-identification, UTP(RJ45) port, LINK/ACT
indicators
Optical port: SFP port, support the gigabit optical
module, LINK/ACT indicators
10G Ethernet optical
port SFP+ port, support the 10G optical module, LINK/ACT indicators
Console port A rate of 9600bps, mini USB interface
Figure 1-1 Front template of the S2928 switch
Table 1-2 Parts at the front template of the S2928 switch
No. Abbrev. Name Description
1 SYS System indicator
If the indicator is always on, the
system is normally started up.
If the indicator flickers, the system

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works normally.
2 PWR Power indicator If the switch is powered on, the
indicator is on.
3 CONSO
LE Console port Manages the switch locally.
4 Link/AC
T Port indicator
If the indicator is always on, it
means that the connection is
linked.
If it flickers, the data is being
forwarded.
5 TE1-TE4 4 10G SFP+ ports Forwards the 10000M Ethernet
optical signals
6 1-24 24 1000Base-T ports
Forwards the 10M/100/1000M
Ethernet electric signals
Note: 21-24 are combo ports
7 21-24 4 gigabit SFP ports Forwards the 1000M Ethernet
optical signals
Additionally, S2928 has a grounding column, a socket and a power on-off at its back.
Figure 1-2 Back template of the S2928 switch
Table 1-3 Parts at the back template of the S2928 switch
No. Abbrev. Name Description
1 / AC power socket AC100～240V
2 / Grounding
column The grounding must be fine.
3 / AC power on-off Pressing upwards is to power on.
Pressing downwards is to power off.

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1.2 S2928 Systematic Characteristic Parameters
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
Protoc
ol
standa
rd
Network
management
standard
RFC 1157 SNMP v1/v2
RFC 1213 MIB II
RFC 1757 RMON 1,2,3,9
Memory Flash Memory: 16M Bytes
SDRAM: 128M Bytes;
Standard
configuration 24 10/100/1000BASE-T ports
4 10G SFP+ ports
4 gigabit SFP ports
1 Console port
Dimensions mm
(W×D×H) 440*180*44
Operating
temperature/
humidity
0℃～45℃; 10%～85% non-condensation
Storage
temperature/
humidity
-40℃～80℃; 5%～95% non-condensation
Power
characteristics input voltage AC100 ～240V, input frequency
47～63Hz
input current: 1.2A (MAX)
output voltage: 12VDC
output current: 6A(MAX)
Power
consumption 35W

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Net weight 2.5KG
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 S2928, 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.
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 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
zKeep dustless and clean during or after the installation.
zPut the cover at the safe place.
zPut tools at the right place where they are not easily falling down.
zPut on relatively tight clothes fasten the tie or scarf well and roll up the sleeve,
avoiding stumbling the machine box.
zPut on the protective glasses if the environment may cause damage to your
eyes.
zAvoid 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.
zRead the installation guide carefully before you operate the system.
zOnly professionals are allowed to install or replace the switch.

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zPull out the AC power socket and close the direct-current power before
operating on the machine box or working beside the power source.
zThe 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:
zPut 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.
zPull out the AC power socket and close the direct-current power before
operating on the machine box or working beside the power source.
zWhen the power is on, do not touch the power.
zCorrectly connect the device and the power socket.
zOnly professionals are allowed to operate and maintain the device.
zRead 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.
zMake sure that the workshop is well-ventilated, the heat of electrical devices is
well-discharged and sufficient air circulation is provided for device cooling.
zAvoid to damage devices by following the electrostatic discharge prevention
procedure.
zPut 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:
zEach 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.

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zWhen you install the machine box at the open cabinet, prevent the frame of the
cabinet from blocking the airway of the machine box.
zEnsure that nice ventilation is provided for the devices installed at the bottom of
the cabinet.
zThe 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
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 S2928 switch are not provided by the S2928 switch.
You yourself need to prepare them. The following are the tools and devices needed for
the typical installation of the S2928 switch:
zScrewdriver
zStatic armguard
zBolt
zEthernet cable
zOther Ethernet terminal devices
zControl terminal

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Chapter 3 Installing the S2928 Switch
Caution:
Only professionals are allowed to install or replace the devices.
3.1 Installation Flow of S2928
3.2 Installing the Machine Box of the Switch
The installation of the machine box has two modes:
zInstalling the machine box on the desk
zInstalling the machine box on the cabinet

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3.2.1 Installing the Machine Box on the Desk
The S2928 switch 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 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 S2928 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 S2928 by running the
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

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set to a rate of 9600bps, eight data bits, one stop bit, no sum check bit and traffic
control.
The RJ45 connector of the console port is shown in Figure 3-3. The RJ45 plug
corresponds to the RJ45 socket, whose pins can be aligned from left to right with the
value from 1 to 8.
Figure 3-3 RJ-45 connector of the console port
The other end of the console port is 9-hole plug. RJ45 connects to DB9 in the console
port shown as below.
Figure 3-4 Cable connection at the console port
Figure 3-5 Connecting the console port of S2928 and computer

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Table 3-1 Pins of the console port
NO. Name Remarks
1 CD No connect
2 RXD Input
3 DSR No connect
4 TXD Output
5 RTS No connect
6 CTS No connect
7 DTR No connect
8 SG GND
Note:
The console port of S2928 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.
3.3.2 Connecting Gigabit Ethernet SFP+ Port
The S2928 switch has 4 10G SFP+ ports and 4 corresponding indicators TE1~TE4. In
use the SFP optical module can be connected to the SFP port and connected to other
Ethernet terminal devices through the optical cable.
Figure 3-6 10G SFP+ ports connect to other Ethernet terminal devices
3.3.3 Connecting Gigabit Ethernet TX Port
S2928 provides 24 10/100/1000Base-T ports, among which G0/21~G0/24 are combo
ports. The 1-24 corresponding indicators are used to indicate the LINK/ACT state. The
ports can connect other Ethernet terminal devices through the UTP port and the
direct-through or cross network cable.

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Because 24 10/100/1000Base-T ports of S2928 support the MDI/MDIX
self-identification of the cable, S2928 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
Table 3-2 Pins of gigabit RJ45
No. Pin Name English Name
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-

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3.3.4 Connecting Gigabit Ethernet SFP Port
S2928 provides 4 gigabit SFP ports. The four ports correspond to indicators G21-G24.
The ports can connect other Ethernet terminal devices through the SFP optical
modules and the direct-through or cross network cable.
Figure 3-8 Connecting the SFP port and other Ethernet terminals
3.4 Checking After Installation
Before electrically starting up the switch, perform the following checkups after the
switch is installed:
zIf 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.
zCheck whether the connected power meets the power requirements of the
switch.
zCheck whether the grounding line is correctly connected.
zCheck 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 source 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 source, do not touch it.
When you open the cover the switch, you may use the following tools:
zCrossed screwdriver
zStatic 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 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:
(5) When the cover is opened, put it aside. The mainboard of the system appears.

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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 the 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:
zPower and cooling systems—power and fan
zPort, 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:
zWhen 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.
zThe working temperature of the switch is from 0 to 40 Celsius 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”.
zIf 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:
zIf the port of the switch cannot be linked, check whether the cable is correctly
connected and whether the peer connection is normal.
zIf the power on-off is at the “ON” location, check the power source and the
power cable.
zIf 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 S2928 switch and their description:
No. Abbrev. Name Description