PLANET SGS-5220-24P2X User Manual
User’s Manual of SGS-5220 Series
Trademarks
Copyright © PLANET Technology Corp. 2014.
Contents are subject to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp. All other trademarks belong to their respective owners.
Disclaimer
PLANET Technology does not warrant that the hardware will work properly in all environments and applications, and makes no
warranty and representation, either implied or expressed, with respect to the quality, performance, merchantability, or fitness for
a particular purpose. PLANET has made every effort to ensure that this User's Manual is accurate; PLANET disclaims liability
for any inaccuracies or omissions that may have occurred.
Information in this User's Manual is subject to change without notice and does not represent a commitment on the part of
PLANET. PLANET assumes no responsibility for any inaccuracies that may be contained in this User's Manual. PLANET makes
no commitment to update or keep current the information in this User's Manual, and reserves the right to make improvements to
this User's Manual and/or to the products described in this User's Manual, at any time without notice.
If you find information in this manual that is incorrect, misleading, or incomplete, we would appreciate your comments and
suggestions.
FCC Warning
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the Instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.
CE Mark Warning
This is a Class A product. In a domestic environment, this product may cause radio interference, in which case the user may be
required to take adequate measures.
Energy Saving Note of the Device
This power required device does not support Standby mode operation. For energy saving, please remove the power cable to
disconnect the device from the power circuit. In view of saving the energy and reducing the unnecessary power consumption, it
is strongly suggested to remove the power connection for the device if this device is not intended to be active.
WEEE Warning
To avoid the potential effects on the environment and human health as a result of the presence of
hazardous substances in electrical and electronic equipment, end users of electrical and electronic
equipment should understand the meaning of the crossed-out wheeled bin symbol. Do not dispose of
WEEE as unsorted municipal waste and have to collect such WEEE separately.
Revision
PLANET L2+ 24-Port 10/100/1000T + 4-Port Shared SFP + 2-Port 10G SFP+ Managed Stackable Switch User's Manual
FOR MODEL: SGS-5220 Series
REVISION: 1.0 (Sep 2014)
Part No: EM-SGS-5220-Series_v1.0
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TABLE OF CONTENTS
1. INTRODUCTION..................................................................................................................10
1.1 Packet Contents.........................................................................................................................................10
1.2 Product Description...................................................................................................................................11
1.3 How to Use This Manual............................................................................................................................16
1.4 Product Features........................................................................................................................................17
1.5 Product Specifications ..............................................................................................................................20
2. INSTALLATION ................................................................................................................... 23
2.1 Hardware Description................................................................................................................................23
2.1.1 Switch Front Panel ..............................................................................................................................................23
2.1.2 LED Indications ...................................................................................................................................................24
2.1.3 Switch Rear Panel ...............................................................................................................................................27
2.2 Installing the Switch...................................................................................................................................28
2.2.1 Desktop Installation .............................................................................................................................................28
2.2.2 Rack Mounting.....................................................................................................................................................29
2.2.3 Installing the SFP/SFP+ Transceiver...................................................................................................................30
2.3 Stack Installation........................................................................................................................................33
2.3.1 Connecting Stacking Cable..................................................................................................................................34
2.3.2 Management Stacking .........................................................................................................................................35
3. SWITCH MANAGEMENT.................................................................................................... 38
3.1 Requirements..............................................................................................................................................38
3.2 Management Access Overvi ew.................................................................................................................39
3.3 Administration Console.............................................................................................................................40
3.4 Web Management.......................................................................................................................................41
3.5 SNMP-based Network Management.........................................................................................................42
3.6 PLANET Smart Discovery Utility ..............................................................................................................42
4. WEB CONFIGURATION...................................................................................................... 44
4.1 Main Web Page...........................................................................................................................................46
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4.2 System.........................................................................................................................................................48
4.2.1 System Information..............................................................................................................................................49
4.2.2 IP Configuration...................................................................................................................................................50
4.2.3 IP Status ..............................................................................................................................................................52
4.2.4 Users Configuration .............................................................................................................................................53
4.2.5 Privilege Levels ...................................................................................................................................................56
4.2.6 NTP Configuration ...............................................................................................................................................57
4.2.7 Time Configuration ..............................................................................................................................................58
4.2.8 UPnP ...................................................................................................................................................................60
4.2.9 DHCP Relay ........................................................................................................................................................62
4.2.10 DHCP Relay Statistics .......................................................................................................................................63
4.2.11 CPU Load ..........................................................................................................................................................65
4.2.12 System Log........................................................................................................................................................66
4.2.13 Detailed Log ......................................................................................................................................................67
4.2.14 Remote Syslog ..................................................................................................................................................68
4.2.15 SMTP Configuration ..........................................................................................................................................69
4.2.16 Web Firmware Upgrade.....................................................................................................................................70
4.2.17 TFTP Firmware Upgrade ...................................................................................................................................71
4.2.18 Save Startup Config...........................................................................................................................................72
4.2.19 Configuration Download ....................................................................................................................................72
4.2.20 Configuration Upload .........................................................................................................................................73
4.2.21 Configuration Activate........................................................................................................................................73
4.2.22 Configuration Delete ..........................................................................................................................................74
4.2.23 Image Select......................................................................................................................................................74
4.2.24 Factory Default ..................................................................................................................................................75
4.2.25 System Reboot ..................................................................................................................................................76
4.3 Simple Network Management Protocol....................................................................................................77
4.3.1 SNMP Overview ..................................................................................................................................................77
4.3.2 SNMP System Configuration ...............................................................................................................................78
4.3.3 SNMP Trap Configuration....................................................................................................................................80
4.3.4 SNMP System Information ..................................................................................................................................82
4.3.5 SNMPv3 Configuration ........................................................................................................................................83
4.3.5.1 SNMPv3 Communities ..............................................................................................................................83
4.3.5.2 SNMPv3 Users ..........................................................................................................................................84
4.3.5.3 SNMPv3 Groups........................................................................................................................................85
4.3.5.4 SNMPv3 Views..........................................................................................................................................86
4.3.5.5 SNMPv3 Access........................................................................................................................................87
4.4 Port Management.......................................................................................................................................89
4.4.1 Port Configuration................................................................................................................................................89
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4.4.2 Port Statistics Overview.......................................................................................................................................91
4.4.3 Port Statistics Detail.............................................................................................................................................92
4.4.4 SFP Module Information ......................................................................................................................................94
4.4.5 Port Mirror............................................................................................................................................................95
4.5 Link Aggregation........................................................................................................................................98
4.5.1 Static Aggregation..............................................................................................................................................100
4.5.2 LACP Configuration ...........................................................................................................................................101
4.5.3 LACP System Status .........................................................................................................................................103
4.5.4 LACP Port Status...............................................................................................................................................104
4.5.5 LACP Port Statistics...........................................................................................................................................105
4.6 VLAN..........................................................................................................................................................106
4.6.1 VLAN Overview .................................................................................................................................................106
4.6.2 IEEE 802.1Q VLAN ...........................................................................................................................................107
4.6.3 VLAN Port Configuration ...................................................................................................................................110
4.6.4 VLAN Membership Status..................................................................................................................................116
4.6.5 VLAN Port Status...............................................................................................................................................117
4.6.6 Port Isolation...................................................................................................................................................... 119
4.6.7 VLAN setting example: ......................................................................................................................................121
4.6.7.1 Two Separate 802.1Q VLANs..................................................................................................................121
4.6.7.2 VLAN Trunking between two 802.1Q aware switches .............................................................................123
4.6.7.3 Port Isolate ..............................................................................................................................................126
4.6.8 MAC-based VLAN .............................................................................................................................................127
4.6.9 IP Subnet-based VLAN......................................................................................................................................128
4.6.10 Protocol-based VLAN ......................................................................................................................................129
4.6.11 Protocol-based VLAN Membership..................................................................................................................131
4.7 Spanning Tree Protocol...........................................................................................................................133
4.7.1 Theory ...............................................................................................................................................................133
4.7.2 STP System Configuration ................................................................................................................................139
4.7.3 Bridge Status .....................................................................................................................................................141
4.7.4 CIST Port Configuration.....................................................................................................................................142
4.7.5 MSTI Priorities ...................................................................................................................................................145
4.7.6 MSTI Configuration............................................................................................................................................146
4.7.7 MSTI Port Configuration ....................................................................................................................................147
4.7.8 Port Status.........................................................................................................................................................149
4.7.9 Port Statistics.....................................................................................................................................................150
4.8 Multicast....................................................................................................................................................151
4.8.1 IGMP Snooping .................................................................................................................................................151
4.8.2 Profile Table.......................................................................................................................................................155
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4.8.3 Address Entry ....................................................................................................................................................156
4.8.4 IGMP Snooping Configuration ...........................................................................................................................157
4.8.5 IGMP Snooping VLAN Configuration.................................................................................................................159
4.8.6 IGMP Snooping Port Group Filtering .................................................................................................................161
4.8.7 IGMP Snooping Status ......................................................................................................................................162
4.8.8 IGMP Group Information....................................................................................................................................163
4.8.9 IGMPv3 Information...........................................................................................................................................164
4.8.10 MLD Snooping Configuration........................................................................................................................... 165
4.8.11 MLD Snooping VLAN Configuration.................................................................................................................166
4.8.12 MLD Snooping Port Group Filtering.................................................................................................................168
4.8.13 MLD Snooping Status......................................................................................................................................169
4.8.14 MLD Group Information ...................................................................................................................................170
4.8.15 MLDv2 Information ..........................................................................................................................................171
4.8.16 MVR (Multicast VLAN Registration).................................................................................................................172
4.8.17 MVR Status......................................................................................................................................................175
4.8.18 MVR Groups Information .................................................................................................................................176
4.8.19 MVR SFM Information .....................................................................................................................................176
4.9 Quality of Service.....................................................................................................................................178
4.9.1 Understanding QoS ...........................................................................................................................................178
4.9.2 Port Policing ......................................................................................................................................................179
4.9.3 Port Classification..............................................................................................................................................179
4.9.4 Port Scheduler...................................................................................................................................................181
4.9.5 Port Shaping......................................................................................................................................................182
4.9.5.1 QoS Egress Port Schedule and Shapers ................................................................................................183
4.9.6 Port Tag Remarking...........................................................................................................................................184
4.9.6.1 QoS Egress Port Tag Remarking.............................................................................................................185
4.9.7 Port DSCP .........................................................................................................................................................186
4.9.8 DSCP-based QoS .............................................................................................................................................187
4.9.9 DSCP Translation ..............................................................................................................................................188
4.9.10 DSCP Classification.........................................................................................................................................189
4.9.11 QoS Control List...............................................................................................................................................190
4.9.11.1 QoS Control Entry Configuration ...........................................................................................................192
4.9.12 QCL Status ......................................................................................................................................................194
4.9.13 Storm Control Configuration ............................................................................................................................195
4.9.14 WRED..............................................................................................................................................................196
4.9.15 QoS Statistics ..................................................................................................................................................199
4.9.16 Voice VLAN Configuration ...............................................................................................................................199
4.9.17 Voice VLAN OUI Table.....................................................................................................................................202
4.10 Access Control Lists..............................................................................................................................203
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4.10.1 Access Control List Status ...............................................................................................................................203
4.10.2 Access Control List Configuration ....................................................................................................................205
4.10.3 ACE Configuration ...........................................................................................................................................207
4.10.4 ACL Ports Configuration ..................................................................................................................................217
4.10.5 ACL Rate Limiter Configuration .......................................................................................................................219
4.11 Authentication.........................................................................................................................................220
4.11.1 Understanding IEEE 802.1X Port-based Authentication .................................................................................. 221
4.11.2 Authentication Configuration ............................................................................................................................224
4.11.3 Network Access Server Configuration..............................................................................................................225
4.11.4 Network Access Overview ...............................................................................................................................236
4.11.5 Network Access Statistics ................................................................................................................................237
4.11.6 RADIUS ...........................................................................................................................................................244
4.11.7 TACACS+ ........................................................................................................................................................246
4.11.8 RADIUS Overview ...........................................................................................................................................247
4.11.9 RADIUS Details ...............................................................................................................................................249
4.11.10 Windows Platform RADIUS Server Configuration..........................................................................................255
4.11.11 802.1X Client Configuration ...........................................................................................................................260
4.12 Security ...................................................................................................................................................263
4.12.1 Port Limit Control.............................................................................................................................................263
4.12.2 Access Management .......................................................................................................................................267
4.12.3 Access Management Statistics ........................................................................................................................268
4.12.4 HTTPs .............................................................................................................................................................269
4.12.5 SSH .................................................................................................................................................................270
4.12.6 Port Security Status .........................................................................................................................................270
4.12.7 Port Security Detail..........................................................................................................................................273
4.12.8 DHCP Snooping ..............................................................................................................................................274
4.12.9 Snooping Table ................................................................................................................................................276
4.12.10 IP Source Guard Configuration...................................................................................................................... 276
4.12.11 IP Source Guard Static Table .........................................................................................................................278
4.12.12 ARP Inspection ..............................................................................................................................................279
4.12.13 ARP Inspection Static Table........................................................................................................................... 280
4.13 Address Table.........................................................................................................................................282
4.13.1 MAC Table Configuration .................................................................................................................................282
4.13.2 MAC Address Table Status ..............................................................................................................................284
4.13.3 Dynamic ARP Inspection Table ........................................................................................................................ 285
4.13.4 Dynamic IP Source Guard Table...................................................................................................................... 286
4.14 LLDP........................................................................................................................................................288
4.14.1 Link Layer Discovery Protocol .........................................................................................................................288
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4.14.2 LLDP Configuration .........................................................................................................................................288
4.14.3 LLDP MED Configuration ................................................................................................................................291
4.14.4 LLDP-MED Neighbor .......................................................................................................................................297
4.14.5 Neighbor ..........................................................................................................................................................301
4.14.6 Port Statistics...................................................................................................................................................302
4.15 Network Diagnostics..............................................................................................................................304
4.15.1 Ping .................................................................................................................................................................305
4.15.2 IPv6 Ping .........................................................................................................................................................306
4.15.3 Remote IP Ping Test ........................................................................................................................................307
4.15.4 Cable Diagnostics............................................................................................................................................308
4.16 Power over Ethernet (SGS-5220-24P2X only)......................................................................................310
4.16.1 Power over Ethernet Powered Device ............................................................................................................. 310
4.16.2 System Configuration ......................................................................................................................................312
4.16.3 Power Over Ethernet Configuration .................................................................................................................313
4.16.4 Port Sequential ................................................................................................................................................315
4.16.5 Port Configuration............................................................................................................................................316
4.16.6 PoE Status.......................................................................................................................................................318
4.16.7 PoE Schedule..................................................................................................................................................320
4.16.8 LLDP PoE Neighbours.....................................................................................................................................323
4.17 Loop Protection......................................................................................................................................324
4.17.1 Configuration ...................................................................................................................................................324
4.17.2 Loop Protection Status.....................................................................................................................................325
4.18 RMON.......................................................................................................................................................327
4.18.1 RMON Alarm Configuration .............................................................................................................................327
4.18.2 RMON Alarm Status.........................................................................................................................................329
4.18.3 RMON Event Configuration .............................................................................................................................330
4.18.4 RMON Event Status.........................................................................................................................................331
4.18.5 RMON History Configuration ...........................................................................................................................332
4.18.6 RMON History Status.......................................................................................................................................333
4.18.7 RMON Statistics Configuration ........................................................................................................................334
4.18.8 RMON Statistics Status....................................................................................................................................335
4.19 Stack........................................................................................................................................................337
4.19.1 Stack................................................................................................................................................................339
4.19.1.1 Switch IDs...........................................................................................................................................339
4.19.1.2 Master Election ...................................................................................................................................340
4.19.1.3 Stack Redundancy ..............................................................................................................................340
4.19.1.4 Shortest Path Forwarding ................................................................................................................... 341
4.19.2 Stack Configuration .........................................................................................................................................342
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4.19.3 Stack Information.............................................................................................................................................345
4.19.4 Stack Port State Overview ...............................................................................................................................346
4.19.5 Stack Example.................................................................................................................................................346
5. SWITCH OPERATION....................................................................................................... 350
5.1 Address Table...........................................................................................................................................350
5.2 Learning ....................................................................................................................................................350
5.3 Forwarding & Filtering.............................................................................................................................350
5.4 Store-and-Forward...................................................................................................................................350
5.5 Auto-Negotiation ......................................................................................................................................351
6. TROUBLESHOOTING....................................................................................................... 352
APPENDIX A: Networking Connection............................................................................... 353
A.1 PoE RJ-45 Port Pin Assignments...........................................................................................................353
A.2 Switch's Data RJ-45 Pi n Assignments - 1000Mbps, 1000Base-T........................................................353
A.3 10/100Mbps, 10/100Base-TX...................................................................................................................353
APPENDIX B : GLOSSARY.................................................................................................. 355
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User’s Manual of SGS-5220 Series
1. INTRODUCTION
PLANET L2+ 24-Port 10/100/1000T + 4-Port Shared SFP + 2-Port 10G SFP+ Managed Stackable Switch, SGS-5220 series,
comes with the multi-port Gigabit Ethernet Switch and SFP fiber optic connectibility and robust layer 2 features. The description
of this model is shown below:
SGS-5220-24T2X
L2+ 24-Port 10/100/1000T + 4-Port Shared SFP + 2-Port 10G SFP+ Managed Stackable Switch
SGS-5220-24P2X
“Managed Switch” is used as an alternative name in this user’s manual.
L2+ 24-Port 10/100/1000T 802.3at PoE + 4-Port Shared SFP + 2-Port 10G SFP+ Managed Stackable
Switch
1.1 Packet Contents
Open the box of the Managed Switch and carefully unpack it. The box should contain the following items:
Managed Switch
Quick Installation Guide
RJ45 to RS232 Cable
SFP Dusty Cap
Rubber Feet
Rack-mount Accessory Kit
Power Cord
If any of these are missing or damaged, please contact your dealer immediately; if possible, retain the carton including the
original packing material, and use them again to repack the product in case there is a need to return it to us for repair.
x 1
x 1
x 1
x 8
x 4
x 1
x 1
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User’s Manual of SGS-5220 Series
1.2 Product Description
High-Density, Resilient Deployment Switch Solution for Gigabit Networking of Enterprise, Campus and Data Center
For the growing Gigabit network and IoT (Internet of Things) demand, PLANET has launched a new-generation Stackable
Gigabit Switch solution, the SGS-5220 switch series, to meet the needs of enterprises, telecoms and campuses for a
large-scale network deployment. The SGS-5220 switch series is Layer 2+ Managed Stackable Gigabit Switch, which supports
both IPv4 and IPv6 protocols and hardware Layer 3 static routing capability, and provides 24 10/100/1000Mbps Gigabit
Ethernet ports, 4 shared Gigabit SFP slots, 2 10G SFP+ uplink slots and another 2 dedicated 10G SFP+ stacked
interfaces for stacking with the series of switches. Up to 16 units, 384 Gigabit Ethernet ports and 32 10Gbps SFP+ slots can be
managed by a stacking group and you can add ports and functionality as needed.
Efficient Single IP Management
The SGS-5220 series applies the advantage of the stacking technology to managing the stack group with one single IP address,
which helps network managers to easily manage a stack of switches instead of connecting and setting each unit one by one.
The stacking technology also enables the chassis-based switches to be integrated into the SGS-5220 Managed Switch series at
an inexpensive cost.
Highly-reliable Stacking Ability
Through its up to 40Gbps, bi-directional high bandwidth tunnel and stacking technology, the SGS-5220 switch series gives the
enterprises, service providers and telecoms flexible control over port density, uplinks and switch stack performance. The stack
redundancy of the SGS-5220 switch series ensures that data integrity is retained even if one switch in the stack fails. You can
even hot-swap switches without disrupting the network, which greatly simplifies the tasks of upgrading the LAN for catering to
increasing bandwidth demands.
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Cost-effective 10Gbps Uplink Capacity
10G Ethernet is a big leap in the evolution of Ethernet. The two 10G SFP+ slot of the SGS-5220 switch series supports
Dual-speed, 10GBase-SR/LR or 1000Base-SX/LX, meaning the administrator now can flexibly choose the suitable SFP/SFP+
transceiver according to the transmission distance or the transmission speed required to extend the network efficiently. They
greatly support SMB network to achieve 10Gbps high performance in a cost-effective way because 10GbE interface usually
could be available in Layer 3 Switch but Layer 3 Switch could be too expensive to SMBs.
Solution for IPv6 Networking
By supporting IPv6 / IPv4 dual stack and plenty of management functions with easy and friendly management interfaces, the
SGS-5220 series is the best choice for IP surveillance, VoIP and wireless service providers to connect with the IPv6 network. It
also helps the SMB to step in the IPv6 era with the lowest investment but not necessary to replace the network facilities while
the ISP constructs the IPv6 FTTx edge network.
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IPv4 and IPv6 VLAN Routing for Secure and Flexible Management
To help customers stay on top of their businesses, the SGS-5220 switch series not only provides ultra high transmission
performance and excellent layer 2 technologies, but also offers IPv4/IPv6 VLAN routing feature which allows to cross over
different VLANs and different IP addresses for the purpose of having a highly secured, flexible management and simpler
networking application.
Robust Layer2 Features
The SGS-5220 series can be programmed for advanced switch management function, such as dynamic port link aggregation,
Q-in-Q VLAN, Multiple spanning tree protocol(MSTP), Layer 2/4 QoS, bandwidth control and IGMP/MLD snooping. The
SGS-5220 series allows the operation of a high-speed trunk combining multiple ports. It enables up to 14 groups of 8 ports for
trunk maximum and supports connection fail-over as well.
Powerful Security
The SGS-5220 series offers comprehensive layer2 to layer4 access control list (ACL) for enforcing security to the edge. It
can be used to restrict to network access by denying packets based on source and destination IP address, TCP/UDP port
number or defined typical network applications. Its protection mechanism also comprises 802.1x Port-based and MAC-based
user and device authentication. With the private VLAN function, communication between edge ports can be prevented to
ensure user privacy.
Enhanced Security and Traffic Control
The SGS-5220 series also provides DHCP Snooping, IP Source Guard and Dynamic ARP Inspection functions to prevent IP
snooping from attack and discard ARP packets with invalid MAC address. The network administrator can now construct highly
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User’s Manual of SGS-5220 Series
secured corporate networks with considerably less time and effort than before.
User-friendly Secure Management
For efficient management, the SGS-5220 series managed switch series is equipped with console, web and SNMP management
interfaces. With the built-in web-based management interface, the SGS-5220 series offers an easy-to-use, platform
independent management and configuration facility. The SGS-5220 series supports SNMP and it can be managed via any
management software based on standard of SNMP v1 and v2 protocol. For reducing product learning time, the SGS-5220
series offers Cisco-like command via Telnet or console port and customer doesn’t need to learn new command from these
switches. Moreover, the SGS-5220 series offers remote secure management by supporting SSH, SSL and SNMPv3 connection
which can be encrypted the packet content at each session.
Flexible and Extendable Solution
The 4 mini-GBIC SFP slots built in the SGS-5220 switch series support dual speed as it features 100Base-FX and
1000Base-SX/LX SFP (Small Form-factor Pluggable) fiber-optic modules. Now the administrator can flexibly choose the
suitable SFP transceiver according to not only the transmission distance, but also the transmission speed required. The
distance can be extended from 550 meters to 2km (multi-mode fiber) and up to above 10/20/30/40/50/70/120 kilometers
(single-mode fiber or WDM fiber). They are well suited for applications within the enterprise data centers and distributions.
Intelligent SFP Diagnosis Mechanism
The SGS-5220 switch series supports SFP-DDM (Digital Diagnostic Monitor) function that greatly helps network administrator
to easily monitor real-time parameters of the SFP and SFP+ transceivers, such as optical output power, optical input power,
temperature, laser bias current, and transceiver supply voltage.
Centralized Power Management for Gigabit Ethernet PoE Networking
To fulfill the needs of higher power required PoE network applications with Gigabit speed transmission, the SGS-5220-24P2X
features high-performance Gigabit IEEE 802.3af PoE (up to 15.4 watts) and IEEE 802.3at PoE+ (up to 30 watts) on all ports. It
perfectly meets the power requirement of PoE VoIP phone and all kinds of PoE IP cameras such as IR, PTZ, speed dome
cameras or even box type IP cameras with built-in fan and heater for high power consumption.
The SGS-5220-24P2X’s PoE capabilities also help to reduce deployment costs for network devices as a result of freeing from
restrictions of power outlet locations. Power and data switching are integrated into one unit, delivered over a single cable and
managed centrally. It thus eliminates cost for additional AC wiring and reduces installation time.
Built-in Unique PoE Functions for Surveillance Management
As a managed PoE Switch for surveillance network, the SGS-5220-24P2X features intelligent PoE Management functions:
Scheduled Power Recycling
SMTP/SNMP Trap Event Alert
PoE Schedule
Scheduled Power Recycling
The SGS-5220-24P2X allows each of the connected PD (Powered Device) to reboot in a specific time each week. Therefore, it
will reduce the chance of PD (Powered Device) crash resulting from buffer overflow.
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