Transition Networks SM8TAT2SA-DC User manual

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33814 Rev. A https://www.transition.com Page 1of 43
SM8TAT2SA-DC
Smart Managed Switch, 8-Port Gigabit PoE+, 2-Port 100/1000 SFP;
DC powered
Install Guide
33814 Rev. A

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Safety Warnings and Cautions
These products are not intended for use in life support products where failure of a product could reasonably be expected to
result in death or personal injury. Anyone using this product in such an application without express written consent of an
officer of Transition Networks does so at their own risk and agrees to fully indemnify Transition Networks for any damages
that may result from such use or sale.
Attention: this product, like all electronic products, uses semiconductors that can be damaged by ESD (electrostatic discharge).
Always observe appropriate precautions when handling.
NOTE: Emphasizes important information or calls your attention to related features or instructions.
WARNING: Alerts you to a potential hazard that could cause personal injury.
CAUTION: Alerts you to a potential hazard that could cause loss of data or damage the system or equipment.
SM8TAT2SA-DC Install Guide, 33814 Rev. A
Record of Revisions
Rev
Date
Description of Changes
A
5/12/20
Initial SM8TAT2SA-DC release at HW v1.01, FW v1.02.1463, and PoE FW v 208-211.
Trademark notice: All trademarks and registered trademarks are the property of their respective owners. All other products
or service names used in this publication are for identification purposes only and may be trademarks or registered
trademarks of their respective companies. All other trademarks or registered trademarks mentioned herein are the
property of their respective holders.
Copyright restrictions: Copyright©2020 Transition Networks, Inc. All rights reserved. No part of this work may be
reproduced or used in any form or by any means (graphic, electronic, or mechanical) without written permission from
Transition Networks.
Address comments on this product or manual to Transition Networks Inc. | 10900 Red Circle Drive, Minnetonka, MN 55343
| tel: [phone] | toll free: 1.800.526.9267 | fax: [phone] | [email protected]m |
[e-mail] | customers[email protected] | web: https://www.transition.com

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Contents
Safety Warnings and Cautions....................................................................................................................................2
Overview.....................................................................................................................................................................5
Key Features ...............................................................................................................................................................5
Benefits.......................................................................................................................................................................5
Ordering Information .................................................................................................................................................6
Specifications..............................................................................................................................................................6
Software Features ..................................................................................................................................................7
About This Manual .................................................................................................................................................. 11
Related Manuals...................................................................................................................................................... 11
For More Information.............................................................................................................................................. 11
Application Example................................................................................................................................................ 12
Front and Back Panels ............................................................................................................................................. 13
Front Panel .......................................................................................................................................................... 13
Back Panel............................................................................................................................................................ 13
LED Descriptions.................................................................................................................................................. 14
System LED ...................................................................................................................................................... 14
Mode LEDs....................................................................................................................................................... 14
Port Status LEDs............................................................................................................................................... 14
Mode/Reset Button......................................................................................................................................... 16
Installation............................................................................................................................................................... 17
Package Checklist ................................................................................................................................................ 17
Rack Mount Safety Instructions .......................................................................................................................... 17
Rack Mount Dimensions...................................................................................................................................... 18
SM8TAT2SA-DC with Rack Mount Brackets .................................................................................................... 18
Rack Mount Brackets....................................................................................................................................... 18
Rack Mounting..................................................................................................................................................... 19
Wall Mounting..................................................................................................................................................... 19
Mounting the Switch on Desk or Shelf................................................................................................................ 20
Grounding............................................................................................................................................................ 20
SAFETY: Equipment Using -48V DC Power Supplies ........................................................................................ 22
Ethernet Interface Connecting (RJ45 Ethernet) .................................................................................................. 23
PoE Deployment Environments A and B ............................................................................................................. 24
Ethernet Interface Connecting (Fiber, SFP)......................................................................................................... 25
Console Connection............................................................................................................................................. 26
Power Supply Warnings & Cautions !! .................................................................................................................... 27
Optional Power Supplies ......................................................................................................................................... 27
Power Supply Specifications................................................................................................................................ 27
25105 Industrial DIN Rail Mounted Power Supply.............................................................................................. 28
25104 Industrial DIN Rail Mounted Power Supply.............................................................................................. 29
Power Supply Mounting Instructions.................................................................................................................. 30
Power Supply Installation.................................................................................................................................... 31
Connecting Power ............................................................................................................................................... 32
Connect Terminals to DC Power Source.......................................................................................................... 32

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Initial Switch Configuration ..................................................................................................................................... 34
Initial Switch Configuration via Web Browser..................................................................................................... 34
Connect the Switch to Your Windows 10 PC....................................................................................................... 36
Initial Switch Configuration via CLI...................................................................................................................... 36
Troubleshooting ...................................................................................................................................................... 37
Troubleshooting PoE Problems ........................................................................................................................... 38
Box Label and Device Label ................................................................................................................................. 39
Record Device and System Information.............................................................................................................. 39
Contact Us ........................................................................................................................................................... 40
Compliance Information.......................................................................................................................................... 40
RoHS, WEEE, and Environmental Programs ........................................................................................................ 40
User Information ................................................................................................................................................. 40
Declaration of Conformity................................................................................................................................... 41
Warranty.................................................................................................................................................................. 41
Limited Lifetime Warranty .................................................................................................................................. 42

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Overview
The Transition Networks SM8TAT2SA-DC managed GbE PoE+ switch is the next-generation Ethernet switch
offering powerful L2 features with better functionality and usability. It delivers the cost-effectively business and
transports Ethernet services via fiber or copper connections.
The SM8TAT2SA-DC delivers 8 (10M/100M/1G) RJ45 with 8 PoE+ (supports 802.3 at/af and total up to 130W)
ports and 2 GbE SFP ports. The SM8TAT2SA-DC provides high hardware performance and environment flexibility
for SMBs and Enterprises. This DC-powered switch provides a cost-effective solution for power and data
connectivity in a Service provider environment with 48V-54V DC input.
The embedded Device Managed System (DMS) features make it easy to use, configure, install, and troubleshoot
in video surveillance, wireless access, and other SMB and Enterprise applications. The SM8TAT2SA-DC is ideal to
deliver management simplicity, better user experience, and lowest total cost of ownership.
Key Features
•Smart Managed features provide easier manageability, basic security and QoS
•Built in Device Management System (DMS)
•DHCP Server
•PoE Port configuration and scheduling
•IEEE 802.3af/at Power over Ethernet
•IEEE 802.3az EEE Energy Efficient Ethernet standard for green Ethernet
•Single 48V-54VDC input via Terminal Block
•Commercial operating temperature: 0°C to +50°C
•Mounting options: 19” Rack Mount, Wall Mount
•IEEE802.3af, at compliant
•PoE Budget: 130Watts
•Optional Power Supplies: Transition Networks 25105, 25104 (sold separately)
•CE/FCC/UL/cUL for EMI and Safety compliance
•Lifetime Warranty
Benefits
Cost-effective Ethernet Switch for Enterprise-class: The switch delivers advanced functionality in Smart
Managed switch including DHCP client, IGMP, LLDP, etc. It also has basic security features such as IEEE 802.1x to
protect your network from unauthorized access. It helps build on the market-leading price/performance with
Smart Managed GbE switch and provide ease of use for enterprise and SMB deployments.
Easy to Install, Configure and Troubleshoot using DMS: The Device Management System (DMS) provides
embedded functions to facilitate devices management at anytime and anywhere. Its user-friendly interface
helps you manage devices intuitively. It supports various IP device types (e.g. PC, IP camera, WAP, etc.) to
enhance manageability and save time and money during installation and maintenance stages.
Lower TCO with Energy-efficient design: The switch is designed to save power and reduce Total Cost of
Ownership with Energy Efficient Ethernet (IEEE 802.3az). It can be used to build a green Ethernet networking
environment.
Advanced PoE+ Management: The switch includes PoE+ options to power IP devices with power-saving features
like Power scheduling and PoE configuration.

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Ordering Information
SKU
Description
SM8TAT2SA-DC
Smart Managed Switch, 8-Port Gigabit PoE+, 2-Port 100/1000 SFP; DC powered
25105
Optional Industrial DIN Rail Mounted Power Supply –order separately
25104
Optional Industrial DIN Rail Mounted Power Supply –order separately
SFPs
See the full line of Transition Networks at the SFP product webpage
Specifications
Port Configuration
Total Ports
RJ45 (10M/100M/1G)
Uplinks (100M/1G)
Telnet
SM8TAT2SA-DC = 10
8
2 SFP
Via any RJ45 port
Hardware Performance
Model
Forwarding
Capacity (Mbps)
Switching
Capacity (Gbps)
Mac Table
(K)
Jumbo Frames
(Bytes)
SM8TAT2SA-DC
14.88
20
8
9216
Environmental Range
Operating Temperature
Storage Temperature
Operating Humidity
Altitude
Fahrenheit
Centigrade
Fahrenheit
Centigrade
10% to 90% non-
condensing
Feet
Meters
32 to 122⁰
0 to 50⁰
-4 to +158⁰
-20 to +70⁰
< 10000
<3000
Dimensions, Weight, Mounting
Dimension (WxHxD)
Weight
Mounting Type
Millimeters
Inches
Kilograms
Pounds
220x 44x 242
8.6x 1.7x 9.5
1.49 Kg. w/o Pkg.
1.90 Kg. w/Pkg.
3.30 Lbs. w/o Pkg
4.20 Lbs. w/Pkg.
19’’ Rack Mount
Voltage and Frequency
Power Supply
DC Operating Range
+48 to 54 VDC or negative 48 to 54 VDC

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Power Supply
With PoE
PoE af/at mode: 48V (PoE functions)
PoE at/af mode: <48V (PoE does not function)
Without PoE
System functions at 39V
System fails at less than 39V
Cold boot
40V
MTBF
SM8TAT2SA-DC
GB, GC - Ground Benign, Controlled 25°C
674,242 Hrs.
GB, GC - Ground Benign, Controlled 50°C
290,347 Hrs.
Certifications
Regulatory Compliance
EMS
EN61000-4-2 ESD: Contact 4KV/ Air 8KV. EN61000-4-3 RS, EN61000-4-6 CS: 3V/m
EN61000-4-4 EFT: DC 1KV, RJ45 0.5 KV. EN61000-4-5: DC common mode 2KV,
differential mode 1KV. RJ45 online 1KV
EMI
FCC Part 15 Class A
Safety
CE, LVD, UL/cUL Listed
Software Features
Layer 2 Switching
Spanning Tree
Protocol (STP)
⚫Standard Spanning Tree 802.1d
⚫Rapid Spanning Tree (RSTP) 802.1w
⚫Multiple Spanning Tree (MSTP) 802.1s
Trunking
⚫Link Aggregation Control Protocol (LACP) IEEE 802.3ad
⚫Static aggregation
VLAN
Supports up to 4K VLANs simultaneously (out of 4096 VLAN IDs).
Port-based VLAN; 802.1Q tag-based VLAN; Protocol based VLAN; IP subnet-based
VLAN; Private VLAN Edge (PVE); MAC-based VLAN; Q-in-Q (double tag) VLAN;
GARP VLAN Registration Protocol (GVRP)
DHCP Relay
⚫Relay of DHCP traffic to DHCP server in different VLAN
⚫Works with DHCP Option 82
IGMP v1/v2
Snooping
IGMP limits bandwidth-intensive multicast traffic to only the requesters. Supports 1024
multicast groups.
IGMP Querier
IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the
absence of a multicast router
IGMP Proxy
IGMP snooping with proxy reporting or report suppression actively filters IGMP packets
in order to reduce load on the multicast router

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MLD v1/v2
Snooping
Delivers IPv6 multicast packets only to the required receivers
Multicast VLAN
Registration
MVR uses a dedicated manually configured VLAN, called the multicast VLAN, to forward
multicast traffic over Layer 2 network in conjunction with IGMP snooping
Security
Secure Sockets
Layer (SSL)
SSL encrypts the http traffic, allowing advanced secure access to the browser-based
management GUI in the switch
IEEE 802.1X
⚫IEEE802.1X: RADIUS authentication, authorization and accounting, MD5 hash, guest
VLAN, single/multiple host mode and single/multiple sessions
⚫Supports IGMP-RADIUS based 802.1X
⚫Dynamic VLAN assignment
Layer 2 Isolation
Private VLAN Edge
PVE (also known as protected ports) provides L2 isolation between clients in the same
VLAN. Supports multiple uplinks
Port Security
Locks MAC addresses to ports, and limits the number of learned MAC address
IP Source Guard
Prevents illegal IP address from accessing to specific port in the switch
RADIUS
Supports RADIUS authentication switch as a client
TACACS+
Up to 5 TACACS+ servers are supported
Storm Control
Prevents traffic on a LAN from being disrupted by a broadcast, multicast, or unicast
storm on a port
DHCP Snooping
A feature acts as a firewall between untrusted hosts and trusted DHCP servers
Loop Protection
Prevents unknown unicast, broadcast, multicast loops in Layer 2 switching.
Quality of Service (QoS)
Hardware Queue
Supports 8 hardware queues
Scheduling
⚫Strict priority and weighted round-robin (WRR)
⚫Queue assignment based on DSCP and class of service
Classification
⚫Port based
⚫802.1p VLAN priority based
Rate Limiting
⚫Ingress policer
⚫Egress shaping and rate control
⚫Per port
Management
Port Mirroring
Traffic on a port can be mirrored to another port for analysis with a network analyzer or
RMON probe. Up to N-1 (N is Switch’s Ports) ports can be mirrored to a single
destination port. A single session is supported.
IEEE 802.1ab (LLDP)
Used by network devices for advertising their identities, capabilities, and neighbors on
an IEEE 802ab local area network. Support LLDP-MED extensions.
Web GUI
Built-in switch configuration utility for browser-based device configuration

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Dual Image
Independent primary and secondary images for backup while upgrading
UPnP
Universal Plug and Play enables device-to-device interoperability
DHCP Server
Support DHCP server to assign IP to DHCP clients
SNMP
SNMP v1, v2c, v3 with traps, and SNMP v 3 user-based security model (USM)
Firmware Upgrade
Web browser upgrade (HTTP/ HTTPs) and TFTP
NTP
Network Time Protocol (NTP) is a networking protocol for clock synchronization
between computer systems over packet-switched
Other
Management
HTTP/HTTPs; DHCP Client; Cable Diagnostics; Syslog; IPv6 Management
Device Management System (DMS)
Graphical
Monitoring
Topology view: Support intuitive way to configure and manage switches and devices with
visual relations.
Floor view: Easily drag and drop PoE devices and help you to build smart workforces.
Map view: Efficiently drag and drop devices and monitor surroundings on Google maps.
Find My Switch
The front panel LEDs flash for 15 seconds to visually identify the switch.
Traffic Monitoring
Display visual chart of network traffic of all devices and monitor every port at any time.
Troubleshooting
Network diagnostic between master switch and devices. Supports protection mechanism,
such as rate-limiting to protect your devices from brute-force downloading.
Power over Ethernet (PoE)
Port Configuration
Supports per port PoE configuration function
PoE Scheduling
Supports per port PoE scheduling to turn on/off the PoE powered devices (PDs).
Auto Power Reset
Automatically checks the link status of PDs, and reboots PDs if there are no responses.
Power Delay
The switch provides power to the PDs based on delay time when PoE switch boots up,
in order to protect switch from misuse of the PDs

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Power Consumption
DC power consumption measured after 60 minutes under full loading with wire speed forwarding.
DC 48V Input:
Device Status
Device Interface
DC Current
Consumption
(A)
DC Voltage
(V)
DC Power
Consumption
(W)
BTU/Hr.
Non-loading
None
0.11
48
5.28
18.00
PoE Standby
Mode
1G TP Port x8
1G SFP Port x2
2.88
48
138.24
471.40
PoE Full loading
after 60 minutes
1G TP Port x8
1G SFP Port x2
2.88
48
138.24
471.40
Non- PoE Standby
Mode
1G TP Port x8
1G SFP Port x2
0.17
48
8.16
27.83
Non-PoE Full
loading after 60
minutes
1G TP Port x8
1G SFP Port x2
0.18
48
8.64
29.46
DC 52V Input:
Device Status
Device Interface
DC Current
Consumption
(A)
DC Voltage
(V)
DC Power
Consumption
(W)
BTU/Hr.
Non-loading
None
0.11
52
5.72
19.51
PoE Standby
Mode
1G TP Port x8
1G SFP Port x2
2.66
52
138.32
471.67
PoE Full loading
after 60 minutes
1G TP Port x8
1G SFP Port x2
2.66
52
138.32
471.67
Non- PoE Standby
Mode
1G TP Port x8
1G SFP Port x2
0.17
52
8.84
30.14
Non-PoE Full
loading after 60
minutes
1G TP Port x8
1G SFP Port x2
0.17
52
8.84
30.14

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DC 54V Input:
Device Status
Device Interface
DC Current
Consumption
(A)
DC Voltage
(V)
DC Power
Consumption
(W)
BTU/Hr.
Non-loading
None
0.11
54
5.94
20.26
PoE Standby
Mode
1G TP Port x8
1G SFP Port x2
2.58
54
139.32
475.08
PoE Full loading
after 60 minutes
1G TP Port x8
1G SFP Port x2
2.59
54
139.86
476.92
Non- PoE Standby
Mode
1G TP Port x8
1G SFP Port x2
0.17
54
9.18
31.30
Non-PoE Full
loading after 60
minutes
1G TP Port x8
1G SFP Port x2
0.17
54
9.18
31.30
About This Manual
This manual describes how to install, configure, and troubleshoot the SM8TAT2SA-DC switch, including how to:
•Install the switch.
•Check the switch status by reading the LED behavior.
•Reset the switch or restore the switch to factory defaults.
•Initially configure the switch.
•Troubleshoot switch installation.
Related Manuals
SM8TAT2SA-DC Quick Start Guide (33813)
SM8TAT2SA-DC Install Guide (33814, this manual)
SM8TAT2SA-DC Web User Guide (33717)
SM8TAT2SA-DC CLI Reference (33718)
Release Notes (version specific)
For More Information
For Transition Networks Drivers, Firmware, etc. go to the Product Support webpage (logon required).
For Manuals, Brochures, Data Sheets, Specifications, etc. go to the Support Library (no logon required).
Note that this manual provides links to third party web sites for which Transition Networks is not responsible.

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Application Example

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Front and Back Panels
The SM8TAT2SA-DC front and back panels are shown and described below.
Front Panel
The SM8TAT2SA-DC front panel provides the switch LEDs, ports, and Mode/Reset pushbutton switch.
Back Panel
The SM8TAT2SA-DC back panel provides the 48-54VDC power input connection.

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LED Descriptions
The LEDs on the front panel provide switch status checking and
monitoring. The types of LEDs are as follows:
System LED
Indicates if the switch is powered up correctly, indicates if there is a
system alarm triggered for troubleshooting.
Mode LEDs
Indicate the mode of all ports on the switch. You can press the Mode/Reset button sequentially to switch
between the two modes (Link/Activity/Speed mode and PoE mode).
Port Status LEDs
Indicate the current status of each port. You can check these LEDs to understand the port status in different
modes, after changing the mode by pressing Mode/Reset button.
The LED indicators are described in the following tables.
Table 1: System LED
LED
Color
State
Description
System
Green
On
The switch is powered ON correctly.
Off
The switch is not receiving power.
Red
On
An abnormal state, such as exceeding operating temperature
range, was detected in the switch.
Table 2: Mode LEDs
LED
Color
State
Description
Link/Act/Speed
Green
On
The Port Status LEDs display link status, network activity, and
speed of each port.
PoE
Green
On
The RJ45 Port Status LEDs are displaying PoE powering status
of each port.

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By pressing the Mode/Reset button for less than 2 seconds to change LED modes (Link/Act/Speed Mode or PoE
Mode) you can check the port status by reading the LED behaviors per the table below.
Table 3: Port Status LEDs
When Link/Act/Speed Mode LED Lit
LED
Color
State
Description
RJ45 Ports
Green
On
The port is enabled and established a link to connected device, and
the connection speed is 1000Mbps.
Green
Blinking
The port is transmitting/receiving packets, and the connection speed
is 1000Mbps.
Amber
On
The port is enabled and established a link to connected device, and
the connection speed is 10/100Mbps.
Amber
Blinking
The port is transmitting/receiving packets, and the connection speed
is 10/100Mbps.
--
Off
The port has no active network cable connected, or it is not
established a link to connected device. Otherwise, the port may have
been disabled through the switch user interface.
SFP Ports
Green
On
The port is enabled and established a link to connected device, and
the connection speed is 1000Mbps.
Green
Blinking
The port is transmitting/receiving packets, and the connection speed
is 1000Mbps.
Amber
On
The port is enabled and established a link to connected device, and
the connection speed is 100Mbps.
Amber
Blinking
The port is transmitting/receiving packets, and the connection speed
is 100Mbps.
--
Off
The port has no active network cable connected, or it is not
established a link to connected device. Otherwise, the port may have
been disabled through the switch user interface.
RJ45 Ports and LEDs SFP Ports and LEDs

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When PoE Mode LED Lit
LED
Color
State
Description
RJ45 Ports
Green
On
The port is enabled and supplying power to connected device.
Amber
On
An abnormal state, such as overload status, has been detected in the
switch.
--
Off
The port has no active network cable connected, or it is not connected a
PoE PD device. Otherwise, the port may have been disabled through the
switch user interface.
Mode/Reset Button
Pressing the front panel Mode/Reset button for a period of time lets you perform these tasks:
•Change Port Status LED Mode: to read the port status correctly in the
two different modes (Link/Act/Speed mode or PoE mode).
•Reset the Switch: to reboot and get the switch back to the previous
configuration settings saved. Note that there is also a Non-Stop PoE
(soft reboot) feature allows the switch to reboot without affecting
PoE port power via the Web UI or CLI.
•Restore the Switch to Factory Defaults: to restore the original factory default settings back to the switch.
Note: Use the table below to determine which task is being performed by reading the LED behaviors while
pressing and holding the Mode/Reset button. When the LED behavior displays correctly, release the button.
Table 4: Mode/Reset Button Descriptions
Task to Perform
Press Button for
SYS LED Behavior
Port Status LED Behavior
Change LED Mode
0 ~ 2 seconds
ON Green
LED status will change based on the mode
selected.
Reset the Switch
2 ~ 7 seconds
Blinking Green
ALL LEDs Off.
Restore to Defaults
7 ~ 12 seconds
Blinking Green
ALL LEDs stay On.
Press the Reset button until all port LEDs light, then release the Reset button. This will set the unit back to its
factory default IP address; log back in to display the startup wizard (First Time Wizard).

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Installation
This section describes switch mounting, grounding, cable connection, configuration, and power connection.
Caution: Before proceeding make sure you have read “Safety Warnings and Cautions” on page 2, and “Power
Supply Warnings & Cautions !!“on page 23.
Package Checklist
Verify that the box contains the following items:
□One Ethernet Switch
□Two Rack Mount brackets
□Four rubber feet
□One printed Quick Start Guide
□One documentation postcard
Contact you sales representative if you have not received these items.
Save the packaging for possible future use.
Rack Mount Safety Instructions
The instructions below (or similar) are intended for rackmount installation environments:
1. Elevated Operating Ambient: if installed in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may exceed room ambient. Install the equipment in an environment
compatible with the maximum ambient temperature (Tma) specified.
2. Reduced Air Flow: install the equipment in a rack so that the amount of air flow required for safe operation
is not compromised.
3. Mechanical Loading: Mount the equipment in the rack so that a hazardous condition does not occur due to
uneven mechanical loading (weight distribution/rack balance).
4. Circuit Overloading: give consideration to the connection of the equipment to the supply circuit and the
effect that overloading of the circuits might have on overcurrent protection and supply wiring. Consider all
equipment nameplate ratings when addressing this concern.
5. Reliable Earthing: maintain reliable earthing of rack-mounted equipment; pay particular attention to supply
connections other than direct connections to the branch circuit (e.g., use of power strips).
6. It is your responsibility to ensure that the final combination of equipment and rack complies with all
applicable safety standards and local electric code requirements.

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Rack Mount Dimensions
SM8TAT2SA-DC with Rack Mount Brackets
Rack Mount Brackets

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Rack Mounting
1. Attach the mounting brackets to both sides of the chassis. Insert screws and tighten then with a screwdriver
to secure the brackets.
2. Place the switch in the rack. Align the oval holes in the brackets with the mounting holes in the rack posts.
3. Attach the brackets to the posts. Insert screws and tighten them.
Wall Mounting
Step 1: Install user-supplied screws on the appropriate location on the wall and be aware of the dimensional
limitation of the screws.
Install screws to the wall Attaching switch to the wall
Step 2: Make sure that the switch is attached securely to wall.

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Mounting the Switch on Desk or Shelf
Step 1: Verify that the workbench is sturdy and reliably grounded.
Step 2: Attach the four adhesive rubber feet to the bottom of the switch.
Attaching the Rubber Feet
Grounding
The back panel provides a ground screw. After the Switch is mounted and connected, the grounding screw can
be used for grounding. Grounding and wire routing help limit the effects of noise due to EMI (electromagnetic
interference). Note: Run the ground connection from the ground screw to the grounding surface before
connecting devices.
Refer to IEC 60417 for Graphical Symbols definitions. Refer to IEC 50 [3] for terminology definitions.
See ITU-T K.27 for Bonding configurations and earthing inside a telecommunications building.
See GR-1089-CORE for Electromagnetic compatibility and electrical safety—generic criteria for network
telecommunications equipment.