Ascent Communication Technology AS3424S User manual

ACT AS3424S
24 x 10GE
Layer 3 Switch
Installation Guide
Revision B

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 2 of 22
ACT AS3424S 10G Layer 3 Switch Hardware
Installation Guide
ACT Document Number: ACT AS3424S Hardware Installation Guide
Installation Guide Revision B
Copyright © 2018 Ascent Communication Technology Limited.
All rights reserved. Reproduction in any manner whatsoever without the express written permission of Ascent
Communication Technology is strictly forbidden.
This document is produced to assist professional and properly trained personnel with installation and maintenance
issues for the product. The capabilities, system requirements and/or compatibility with third-party products
described herein are subject to change without notice.
For more information, contact ACT: [e-mail]
Revision History
Revision
Date
Reason for Change
A
10/24/2018
Initial release

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 3 of 22
Table of Contents
1 ASCENT AS3424S Introduction............................................................................................... 4
1.1 Appearance Description for Standard Configuration····················································· 4
1.2 ASCENT AS3424S Systematic Characteristic Parameters··············································· 5
1.3 ROHS Description··········································································································· 6
2 Chapter 2 Installation Preparation......................................................................................... 7
2.1 Caution of Usage············································································································ 7
2.2 Safety Advice·················································································································· 7
2.3 Requirements for Common Locations ··········································································· 8
2.4 Installation Tools and Device························································································ 10
3 Installing the ASCENT AS3424S Switch ................................................................................ 11
3.1 Installation Flow of ASCENT AS3424S·········································································· 11
3.2 Installing the Machine Box of the Switch····································································· 11
3.3 Connecting the Port ····································································································· 12
3.4 Checking After Installation··························································································· 16
4 Maintaining Switch............................................................................................................... 17
4.1 Opening the Machine Box···························································································· 17
4.2 Closing Machine Box···································································································· 18
5 Hardware Fault Analysis....................................................................................................... 19
5.1 Fault Separation ··········································································································· 19
5.2 Indicator Description···································································································· 19

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 4 of 22
The section describes the characteristics and parameters of ASCENT AS3424S and gives an
overview of ASCENT AS3424S.
The built-in ports of ASCENT AS3424S are: 24 10GE SFP+ ports, 2 40/100GE QSFP+ ports, 1
console port, 1 gigabit management port and 1 USB interface. See table 1-1.
Table 1-1 Attributes of the built-in port
Port
Attribute
10GE optical port
SFP+ interface, LINK/ACT indicator
40/100GE optical port
QSFP+ interface, LINK/ACT indicator
Console port
RJ45 interface, a rate of 9600bps
Ethernet management port
RJ45 interface
USB interface
USB interface
Besides, ASCENT AS3424S has two power sockets at its back.
Figure 1-1 Front template of the ASCENT AS3424S switch
Table 1-2 Parts at the front template of the ASCENT AS3424S switch
No.
Abbrev.
Name
Description
1
Power LED
indicator
Power indicator, refer to indicator description for the detail
2
System LED
Indicator
System indicator, refer to indicator description for the detail
3
MODEL: 10GE
indicator
40/100Gbps indicator of
Ethernet port indicator
1. Work in the mode of 100GE, MODEL: 10G indicator is off;
2. The 40GE port breaks out into 4 10GE ports and combines
with QSFP+ port indicator. The QSFP+ port indicator shows
the status of the 4 10GE BREAKOUT indicators.
4
SFP+
10GE Ethernet optical
ports
24 10GE SFP+ ports
5
QSFP+
40/100Gbps Ethernet
optical ports
2 QSFP+ 40/100Gbps ports
6
QSFP+
40/100Gbps Ethernet
optical ports
2 QSFP+ 40/100Gbps ports
7
MNG and CLI
Gigabit Ethernet
management ports
CLI port
Gigabit Ethernet Base-T ports, 100/1000BASE-T ports
Manages the switch locally
8
USB
USB
USB interface

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 5 of 22
Figure 1-2 Back template of the ASCENT AS3424S switch
Table 1-3 Parts at the back template of the ASCENT AS3424S switch
No.
Abbrev.
Name
Description
1
/
Grounding column
The grounding must be fine.
2
PWR2
Power slot
dual power backup, hot swap
3
PWR1
Power slot
dual power backup, hot swap
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
Network Management Standard
RFC 1157 SNMP v1/v2
RFC 1213 MIB II
RFC 1757 RMON 1, 2, 3, 9
Hardware Characteristics
Memory
Flash Memory: 32M Bytes
SDRAM: 1GBytes;
Standard Configuration
24 SFP+ 10GE optical ports
4 QSFP+ 40/100Gbps optical ports
1 Console port
1 USB interface
1 gigabit management interface
Dimensions (W×D×H)
442.5 mm × 404 mm × 44 mm
Operating Temperature/ Humidity
0 °C to 40 °C; 10 % to 85 % non-condensing
Storage Temperature/ Humidity
-40 °C to 80 °C; 5 % to 95 % non-condensing
Power Characteristics
Input voltage: AC100 to 240V, DC36 to 72V,
Input frequency: 47 to 63Hz,
Input current: 3A (MAX),
Output voltage: 12VDC,

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 6 of 22
Output current: 5A(MAX)
Full Power Consumption
＜75W

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 7 of 22
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 ASCENT AS3424S, 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 ASCENT AS3424S. 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.
 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, 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.
The safety notices mentioned here means that improper operation may lead to body damage.
 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.
When you work under electricity, following the following principles:

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 8 of 22
 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.
Notes:
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:
Cut off the system's power.
Alarm.
Take proper measures to help persons who are hit by the disaster. Artificial respiration is
needed if necessary.
Seek for medical help, or judge the loss and seek for available help.
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.
This part describes the requirements for the installation locations.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 9 of 22
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”.
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.
The following content assists you to make a proper cabinet configuration:
 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.
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.
Warning
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.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 10 of 22
The tools and devices to install the ASCENT AS3424S switch are not provided by the ASCENT
AS3424S switch. You yourself need to prepare them. The following are the tools and devices
needed for the typical installation of the ASCENT AS3424S switch:
 Screwdriver
 Static armguard
 Bolt
 Ethernet cable
 Other Ethernet terminal devices
 Control terminal

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 11 of 22
Warning
Only professionals are allowed to install or replace the devices.
The installation of the machine box has two modes:
 Installing the machine box on the desk
 Installing the machine box on the cabinet
The ASCENT AS3424S 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.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 12 of 22
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 3-3 Fixing the machine box of the switch
Warning
The switch shown in figure 3-1 does not represent the material ASCENT AS3424S.
After the brackets are installed, install the switch on the cabinet. See Figure 3-2.
Figure 3-4 Installing the switch on the cabinet
The switch of ASCENT AS3424S has a console port.
The rate of the console port is a value ranging from 1200bps to 115200bps. It has a standard
RJ45 plug. It is odd-even optional and has traffic control. After you connect the console port
to the serial port of the terminal, such as STAR-510G+ or PC through a console cable, you can
configure and monitor the switch of ASCENT AS3424S 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.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 13 of 22
Figure 3-3 RJ-45 connector of the console port
The RJ45 connector of the console port is shown in the following figure. 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 3-4 Connecting the console port of ASCENT AS3424S and computer
Warning
The switch shown in figure 3-4 does not represent the material ASCENT AS3424S.
Table 3-1 Pins of the console port
No.
Name
Remark
3
TXD
Output
5
SG
6
RXD
Input
Note
The cable is used to connect the console port of ASCENT AS3424S and the outside monitoring
device. One end is RJ45 8-core plug, and the other end of the console cable is DB9. The RJ45 plug
is put into the socket of the console port on the ASCENT AS3424S switch.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 14 of 22
ASCENT AS3424S provides with 1 10/100/1000Base-T port. Each port has its corresponding
MNG indicator. The 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. The numbering order of the pins in the UTP port is the same as that in the
console port. See figure 3-8.
Figure 3-5 RJ-45 connector on the console port
Because the 10/100/1000Base-T ports of ASCENT AS3424S support the MDI/MDIX self-
identification of the cable, ASCENT AS3424S can adopt five types of direct-through/cross
network cables when it connects other Ethernet terminals.
Figure 3-6 Connecting the 1000Base-TX port and other Ethernet terminals
Warning
The switch shown in figure 3-8 does not represent the material ASCENT AS3424S.
Table 3-1 Pins of Gigabit RJ45
No.
Pin Name
Remark
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+

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 15 of 22
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-
The ASCENT AS3424S switch has 24 10GE SFP+ ports. Each port has its corresponding
indicator: 1 to 24. 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 3-7 Connecting the 10GE SFP+ port and other Ethernet terminals
Warning
The switch shown in figure 3-8 does not represent the material ASCENT AS3424S.
ASCENT AS3424S provides with 4 40/100 GE QSFP+ ports. Each port has its corresponding
indicator: 1 to 4.
The four ports can be configured into 2 modes:
1. Set the rate of the port to 100Gbps
You can connect the QSFP+ optical port to the QSFP+ optical module and then you can
connect other Ethernet terminal devices with 100Gbps optical ports through the optical
cable.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 16 of 22
Figure 3-8 Connecting the 100GE QSF+ port and other Ethernet terminals
2. Set the ports to 4 10GE ports
You can connect the QSFP+ optical module to the optical port and then you can connect other
Ethernet terminal devices with 10GE optical ports through the MPO-4*LC optical cable.
ASCENT AS3424S provides with 1 USB2.0 interface.
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.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 17 of 22
Warning
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.
This section describes how to open the cover of the switch, required tools and operation
methods.
Warning
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:
 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.
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:
The switch shown in the above figure does not represent the material ASCENT AS3424S.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 18 of 22
Warning
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.
The section mainly describes how to put the cover and close the machine box. Do as follows:
5. Put them well according to their locations and joint them together along their sides. See the
following figure.
6. When the cover and the bottom are closely tied, let the cover slide the slot of the front template
at the bottom.
7. Nail the bolt and screw it tightly with the screwdriver.
8. Reinstall the switch on the cabinet or the desk.
9. Reconnect all cables of the switch.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 19 of 22
The part describes how to remove the fault from the switch.
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
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. 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.
 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.
 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.
The LED indicator shows that the switch is running. The following table shows the indicators
of the ASCENT AS3424S switch and their description:
Abbrev.
Name
Description
PWR
Power indicator
If the power supply of the switch is powered on, the indicator is on.
SYS
System indicator
If the indicator flickers, the system works well.
If the indicator is off or on, the system malfunctions.
MNG
Management
port indicator
If the indicator is always on, the system is normally linked.
If the indicator is off, the port is not linked.

AS3424S Hardware Installation Guide
Solutions Provider for FTTx, RFoG, and HFC
www.ascentcomtec.com
Page 20 of 22
If the indicator flickers, there is data transmission.
1 to
24(LINK/ACT)
SFP+ port
indicator
If the indicator is always on, the system is normally linked.
If the indicator is off, the port is not linked.
If the indicator flickers, there is data transmission.
1 to 2
QSFP+ port
indicator
1. work in the mode of 100GE
If the indicator is always on, the system is normally linked.
If the indicator is off, the port is not linked.
If the indicator flickers, there is data transmission.
2．The 40GE port breaks out into 4 10GE ports
The 4 port indicators are on in turn. The interval between two indicators is
5 seconds. The indicators combing with BREAKOUT indicators show the
state of 10GE ports.
MODEL:10G
(CG0/1 to 0/4)
The 40GE port
breaks out into
4 10GE ports
1. In the mode of 40GE mode, the BREAKOUT indicator is off.
2. The 40GE port breaks out into 4 10GE ports and combines with QSFP+
port indicator
3. The QSFP+ port indicator shows the status of the 4 40GE BREAKOUT
indicators
Figure 5-1 SFP+ port indicator
Figure 5-2 40GE BREAKOUT indicator