Black Box LE2700A User manual

User Manual
This Layer 2 modular rackmount managed Gigabit Ethernet switch
has four module slots that accommodate 8-port 10/100/1000BASE-T RJ-45
and SFP modules, and 4-port 10GE SFP+ and 100-Mbps fiber ST and fiber
SC modules.
LE2700 Series Hardened Managed Modular Switches
LE2700A LE2710C LE2721C
LE2700AE LE2711C LE2722C
LE2700UK LE2720C LE2731C
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [e-mail]
Customer
Support
Information

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Page 2
Trademarks Used in this Manual
We‘re here to help! If you have any questions about your application
or our products, contact Black Box Tech Support at 724-746-5500
or go to blackbox.com and click on “Talk to Black Box.”
You’ll be live with one of our technical experts in less than 60 seconds.
Trademarks Used in this Manual
Black Box and the Double Diamond logo are registered trademarks of BB Technologies, Inc.
Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
Disclaimer:
Black Box Network Services shall not be liable for damages of any kind, including, but not limited to, punitive, consequential or
cost of cover damages, resulting from any errors in the product information or specifications set forth in this document and Black
Box Network Services may revise this document at any time without notice.

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FCC and IC RFI Statements
Federal Communications Commission and Industry Canada Radio Frequency Interference
Statements
This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict
accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to
comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules,
which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial
environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user at his own
expense will be required to take whatever measures may be necessary to correct the interference.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to
operate the equipment.
This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio
Interference Regulation of Industry Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques
de la classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par Industrie Canada.

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NOM Statement
Instrucciones de Seguridad
(Normas Oficiales Mexicanas Electrical Safety Statement)
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño, lavabo, sótano mojado o cerca
de una alberca, etc.
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación.
Todo otro servicio deberá ser referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del aparato eléctrico
sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe colocar en libreros o gabinetes
que impidan el flujo de aire por los orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de calor, estufas u otros
aparatos (incluyendo amplificadores) que producen calor.
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como
se indique en el aparato.
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados
sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.

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Table of Contents
Table of Contents
1. Specifications.........................................................................................................................................................................8
2. Overview ............................................................................................................................................................................. 10
2.1 Introduction.................................................................................................................................................................10
2.2 Features.......................................................................................................................................................................10
2.3 What’s Included .......................................................................................................................................................... 11
2.4 Hardware Description.................................................................................................................................................. 12
3. Hardware Installation........................................................................................................................................................... 16
3.1 Rackmount Installation ................................................................................................................................................ 16
3.2 Module Installation...................................................................................................................................................... 16
3.2.1 RJ-45 Module (LE2720C).................................................................................................................................... 16
3.2.2 SFP Module (LE2721C) ....................................................................................................................................... 17
3.2.3 100/1000 Mbps SFP Module (LE2722C) or 10G SFP+ Module (LE2731C) ..............................................................17
3.2.4 Power Module .................................................................................................................................................. 18
3.3 Wiring ......................................................................................................................................................................... 19
3.3.1 Grounding .......................................................................................................................................................... 19
3.3.2 Fault Relay .......................................................................................................................................................... 19
3.3.3 Redundant Power Inputs.................................................................................................................................... 19
3.4 Connection..................................................................................................................................................................20
3.4.1 Cables.................................................................................................................................................................20
3.4.2 SFP .....................................................................................................................................................................22
3.4.3 B-Ring/B-Chain ..................................................................................................................................................22
4. Redundancy.........................................................................................................................................................................25
4.1 B-Ring ......................................................................................................................................................................... 25
4.1.1 Introduction ........................................................................................................................................................25
4.1.2 Configurations ....................................................................................................................................................25
4.2 B-Chain .......................................................................................................................................................................26
4.2.1 Introduction........................................................................................................................................................26
4.2.2 Configurations....................................................................................................................................................26
4.3 MRP.............................................................................................................................................................................26
4.3.1 Introduction........................................................................................................................................................26
4.3.2 Configurations....................................................................................................................................................26
4.4 STP/RSTP/MSTP........................................................................................................................................................... 27
4.4.1 STP/RSTP ............................................................................................................................................................27
4.4.2 MSTP..................................................................................................................................................................30
4.4.3 CIST....................................................................................................................................................................33
4.5 Fast Recovery...............................................................................................................................................................34
5. Management.......................................................................................................................................................................35
5.1 Basic Settings...............................................................................................................................................................36
5.1.1 System Information .............................................................................................................................................36
5.1.2 Admin and Password..........................................................................................................................................37
5.1.3 Authentication....................................................................................................................................................37
5.1.4 IP Settings...........................................................................................................................................................38
5.1.5 IPv6 Settings .......................................................................................................................................................39
5.1.6 HTTPS.................................................................................................................................................................39
5.1.7 SSH .....................................................................................................................................................................40
5.1.8 LLDP ...................................................................................................................................................................40

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Table of Contents
5.1.9 Modbus TCP .......................................................................................................................................................43
5.1.10 Backup/Restore Configurations .........................................................................................................................43
5.1.11 Firmware Update...............................................................................................................................................44
5.2 DHCP Server................................................................................................................................................................44
5.2.1 Basic Settings......................................................................................................................................................44
5.2.2 Dynamic Client List.............................................................................................................................................44
5.2.3 Client List ...........................................................................................................................................................44
5.2.4 Relay Agent........................................................................................................................................................45
5.3 Port Setting .................................................................................................................................................................47
5.3.1 Port Control........................................................................................................................................................ 47
5.3.2 Port Trunk ..........................................................................................................................................................48
5.3.3 LACP ..................................................................................................................................................................49
5.3.4 Loop Ground......................................................................................................................................................52
5.4 VLAN...........................................................................................................................................................................53
5.4.1 VLAN Membership.............................................................................................................................................53
5.4.2 Port Configurations ............................................................................................................................................54
5.4.3 Private VLAN ......................................................................................................................................................62
5.5 SNMP ..........................................................................................................................................................................64
5.5.1 SNMP System Configurations .............................................................................................................................64
5.5.2 SNMP Community Configurations .....................................................................................................................66
5.5.3 SNMP User Configurations.................................................................................................................................66
5.5.4 SNMP Group Configurations..............................................................................................................................68
5.5.5 SNMP View Configurations ................................................................................................................................68
5.5.6 SNMP Access Configurations..............................................................................................................................69
5.6 Traffic Prioritization......................................................................................................................................................70
5.6.1 Storm Control.....................................................................................................................................................70
5.6.2 Port Classification............................................................................................................................................... 71
5.6.3 Port Tag Remaking.............................................................................................................................................72
5.6.4 Port DSCP...........................................................................................................................................................73
5.6.5 Port Policing ....................................................................................................................................................... 74
5.6.6 Queue Policing ...................................................................................................................................................75
5.6.7 QoS Egress Port Scheduler and Shapers .............................................................................................................76
5.6.8 Port Scheduled...................................................................................................................................................78
5.6.9 Port Shaping.......................................................................................................................................................78
5.6.10 DSCP Based QoS...............................................................................................................................................79
5.6.11 DSCP Translation ...............................................................................................................................................80
5.6.12 DSCP Classification ...........................................................................................................................................80
5.6.13 QoS Control List................................................................................................................................................81
5.6.14 QoS Counters ...................................................................................................................................................83
5.6.15 QCL Status........................................................................................................................................................83
5.7 Multicast......................................................................................................................................................................84
5.7.1 IGMP Snooping...................................................................................................................................................84
5.7.2 VLAN Configurations of IGMP Snooping............................................................................................................85
5.7.3 IGMP Snooping Status........................................................................................................................................86
5.7.4 Groups IGMP Snooping Information ..................................................................................................................87
5.8 Security........................................................................................................................................................................87
5.8.1 Remote Control Security Configurations.............................................................................................................87
5.8.2 Device Binding ...................................................................................................................................................88
5.8.3 ACL Ports ........................................................................................................................................................... 92
5.8.4 AAA................................................................................................................................................................. 101
5.8.5 RADIUS ............................................................................................................................................................ 102

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Table of Contents
5.8.6 NAS (802.1x) .................................................................................................................................................... 107
5.9 Alerts......................................................................................................................................................................... 115
5.9.1 Fault Alarm ....................................................................................................................................................... 115
5.9.2 System Warning ............................................................................................................................................... 115
5.10 Monitor and Diag...................................................................................................................................................... 118
5.10.1 MAC Table...................................................................................................................................................... 118
5.10.2 Port Statistics .................................................................................................................................................. 120
5.10.3 Port Mirroring ................................................................................................................................................. 122
5.10.4 System Log Information.................................................................................................................................. 123
5.10.5 Cable Diagnostics ........................................................................................................................................... 124
5.10.6 SFP Monitor.................................................................................................................................................... 125
5.10.7 Ping................................................................................................................................................................. 125
5.11 Synchronization ......................................................................................................................................................... 127
5.12 Troubleshooting......................................................................................................................................................... 130
5.12.1 Fac tor y Defaults .............................................................................................................................................. 130
5.12.2 System Reboot................................................................................................................................................ 130
5.13 Command Line Interface Management ..................................................................................................................... 130

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Chapter 1: Specifications
1. Specifications
Ethernet Standards IEEE 802.3 10BASE-T,
IEEE 802.3u 100BASE-TX and 100BASE-FX,
IEEE 802.3ab 1000BASE-T,
IEEE 802.3z 100BASE-X,
IEEE 802.3ae 10 Gigabit Ethernet,
IEEE 802.3ad LACP (Link Aggregation Control Protocol),
IEEE 802.1p COS (Class of Service),
IEEE 802.1q VLAN tagging,
IEEE 802.1w RSTP (Rapid Spanning Tree Protocol),
IEEE 802.1s MSTP (Multiple Spanning Tree Protocol),
IEEE 802.1x authentication,
IEEE 801.1AB LLDP (Link Layer Discovery Protocol)
Jumbo Frames Up to 9.6 KB
MAC Table 8 K
Network Redundancy MRP,
MSTP (RSTP/STP compatible)
Priority Queues 8
Processing Store-and-forward
Security Features Device binding,
Enable/disable ports, MAC based port security,
Port-based network access control (802.1x),
Single 802.1x and Multiple 802.1x,
MAC-based authentication,
QoS assignment,
Guest VLAN,
MAC address limit,
TACACS+,
VLAN (802.1Q) to segregate and secure network traffic,
Radius centralized password management,
SNMPv3 encrypted authentication and access security,
Https/SSH enhance network security,
Web and CLI authentication and authorization,
Authorization (15 levels),
IP source guard
Software Features IEEE 1588v2 clock synhronization,
IEEE 801.1D Bridge, auto MAC address learning/aging and MAC address (static),
Multiple Registration Protocol (MRP),
MSTP (RSTP/STP compatible),
Redundant Ring with recovery time less tham 30 ms over 250 units,
Quality of Service (802.1p) for real-time traffic,
VLAN (802.1Q) with VLAN tagging,
IGMP v2/v3 Snooping,
Port configuration, status, statistics, monitoring, security,
DHCP Server/Client,
DHCP Relay,
Modbus TCP,
DNS client proxy,
SMTP Client

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Chapter 1: Specifications
Connectors LE2700A, LE2700AE, LE2700UK:
RS-232 Serial Console Port: (1) RJ-45 via console cable, 115200 bps, 8, N, 1;|
Fault contact: 24-VDC, 1-A relay;
LE2710C: (4) 100FX SC;
LE2711C: (4) 100FX ST;
LE2720C: (8) 10/100/1000BASE-T RJ-45;
LE2721C: (8) slots for 100/1000-Mbps SFP modules;
LE2722C: (4) slots for 100/1000 Mbps SFP modules;
LE2731C: (4) slots for 10GE SFP+ modules
Indicators LE2700A, LE2700AE, LE2700UK:
(39) LEDs:
(1) PWR, (1) PWR1, (1) PWR2, (1) RM, (1) Ring, (1) Fault, (1) Def, (1) Link, (1) SPD,
(1) FDX, (1) RMT,
(28) Port LEDs;
LE2720C:
(2) LEDs per port;
LE2731C:
(1) LED per port
Environmental Temperature Tolerance:
Operating: -40 to +185° F (-40 to +85° C);
Storage: -40 to +185° F (-40 to +85° C);
Humidity:
Operating: 5 to 95%, noncondensing
Power Input: Dual 88–264 VAC/100–370 VDC power inputs at terminal block;
Consumption (Typ.): 43.5 watts max.;
Overload Current Protection: Present
Dimensions 1.73"H x 17.32"W x 12.8"D (4.4 x 44 x 32.5 cm), 19" rackmountable
Weight 14.5 lb. (6.6 kg)
Approvals EMI:
FCC Part 15,
CISPR (EN55022) Class A,
EN50155 (EN50121-3-2, EN55011, EN50121-4);
EMS:
EN61000-4-2 (ESD),
EN61000-4-3 (RS),
EN61000-4-4 (EFT),
EN61000-4-5 (Surge),
EN61000-4-6 (CS),
EN61000-4-8,
EN61000-4-11

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Chapter 2: Overview
2. Overview
2.1 Introduction
The LE2700 Series Hardened Managed Modular Switches are ideal for industrial Ethernet applications. Use them to control and
monitor equipment at oil/gas wells transmission facilities, water/wastewater, IP security/surveillance cameras and alarms, utilities,
or building HVAC systems.
The LE2700 Series Hardened Managed Modular Switches are scalable, flexible, cost-effective, and reliable. The 4-Slot Chassis is a
Layer 2 modular rackmount managed Gigabit Ethernet switch with four module slots. 8-port 10/100/1000BASE-T RJ-45 and SFP
modules, and 4-port 10GE SFP+ and 100-Mbps fiber ST and fiber SC modules are also available.
Figure 2-1. Available models.
Part Number Description
LE2700A Hardened Managed Modular Switch, 4-Slot Chassis, US
LE2700AE Hardened Managed Modular Switch, 4-Slot Chassis, EU
LE2700UK Hardened Managed Modular Switch, 4-Slot Chassis, UK
LE2710C 4-port 100FX multimode 2 km SC module
LE2711C 4-port 100FX multimode 2 km ST module
LE2720C 8-port 10/100/1000BASE-T RJ-45 module
LE2721C 8-port 100/1000 Mbps SFP module
LE2722C 4-port 100/1000 Mbps SFP module
LE2731C 4-port 10 GE SFP+ module
2.2 Features
• Modular design with dual power supplies enables flexible network planning by allowing users to add capacity as demand
increases. Choose the right quantity, speed, and range of interfaces for the application. Purchase the capacity you need when
you need it.
• Environmentally hardened case withstands operating temperatures of -40 to +185° F (-40 to +85° C).
• Managed switch enables you to configure and monitor installations remotely.
• Supports Web, SNMP, and console user interfaces.
• Choose from copper, fiber, 10/100/1000-Mbps, and 10GE interfaces.
• Complies with IEEE 802.3az energy efficient standards.
• Manages traffic with 802.1p/q tagged frames.
• Handles jumbo frames.
• Supports IEEE 1588v2 synchronization.
• Accommodates high availability protocols, including xSTP, link aggregation, and redundant ring protocols.
• Supports IP multicast snooping with IGMPv2/3.
• Authenticates ACLs, TACACS+, and 802.1x users.

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Chapter 2: Overview
2.3 What’s Included
Your package should include the following items. If anything is missing or damaged, contact Black Box Technical Support
at 724-746-5500 or [e-mail].
LE2700A:
• LE2700 Series Hardened Managed Modular Switch with power supply
• U.S. power cord
LE2700AE:
• LE2700 Series Hardened Managed Modular Switch with power supply
• EU. power cord
LE2700UK:
• LE2700 Series Hardened Managed Modular Switch with power supply
• UK power cord
LE2710C:
4-port 100FX multimode 2 km SC module
LE2711C:
4-port 100FX multimode 2 km ST module
LE2720C:
8-port 10/100 /1000BASE-T RJ-45 module
LE2721C:
8-port 100/1000 Mbps SFP module
LE2722C:
4-port 100/1000 Mbps SFP module
LE2731C:
4-port 10 GE SFP+ module
You can download this user manual from the Black Box Web site.
To download from the Web site:
1. Go to www.blackbox.com
2. Enter the part number (LE2700A) in the search box:
3. Click on the “Resources” tab on the product page, and select the document you wish to download.

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Chapter 2: Overview
2.4 Hardware Description
Figure 2-1. Front panel.
Figure 2-2. Back panel.
Power module slot 2 Power module slot 1
10-Gigabit or Gigabit Ethernet module
installs in slot 4
Power module
installed in slot 2
Power module
installed in slot 1

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Chapter 2: Overview
On the rear panel of the switch are two panel module slots and one terminal block. The terminal blocks include two power pairs
for redundant power supply.
2
3 45 1 6
87
Front view
Rear view
Table 2-2. LE2700 Series Hardened Managed Modular Switches Components2
Number Component Description
1Model name Name of product
2System and Port status LEDs System LEDs include PWR/PWR1/PWR2/R.M/Ring/Fault/DEF.
Port LEDs include LINK/SPD/FDX/port number.
3Serial console port Links to console for management.
4Reset button Press Reset for 3 seconds to reset and 5 seconds to return to factory default.
5LED mode button To change port LED mode, press the Mode button.
6Ethernet module slots Enable different RJ-45/SFP modular combinations based on your needs.
7Power input module slots Houses power input modules.
8Terminal block Links to DC connector.

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Chapter 2: Overview
B-Ring provides two 10 Gigabit modules and four Gigabit Ethernet modules to meet your demand for high speed. For applica-
tions requiring long-distance data transmission, B-Ring also provides several fiber modules to meet your needs. Please refer to the
following table for available modules.
The modules are not hot-swappable. Be sure to turn off power before changing modules; otherwise, the system will not detect
newly inserted modules.
Table 2-3. Switch Modules.
Part Number Description
LE2710C 4-port 100FX multimode 2 km SC module
LE2711C 4-port 100FX multimode 2 km ST module
LE2720C 8-port 10/100/1000BASE-T RJ-45 module
LE2721C 8-port 100/1000 Mbps SFP module
LE2722C 4-port 100/1000 Mbps SFP module
LE2731C 4-port 10 GE SFP+ module
Figure 2-4. SFP Modules.
Part Number Description Compatible Switch Modules
LFP401 SFP, 155-Mbps Fiber with Extended Diagnostics, 850-nm
Multimode, LC, 2 km
LE2721C
LFP402 SFP, 155-Mbps Fiber with Extended Diagnostics, 1310-nm Multimode, LC,
2 km
LE2721C
LFP403 SFP, 155-Mbps Fiber with Extended Diagnostics, 1310-nm,
Single-Mode, LC, 30 km
LE2721C
LFP404 SFP, 155-Mbps Fiber with Extended Diagnostics, 1310-nm
Single-Mode, Plus, LC, 60 km
LE2721C
LFP411 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 850-nm
Multimode, LC, 300 m
LE2721C
LFP412 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 1310-nm Multimode, LC,
2 km
LE2721C
LFP413 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 1310-nm
Single-Mode, LC, 10 km
LE2721C
LFP414 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 1310-nm
Single-Mode, LC, 30 km
LE2721C
LSP421 10GBASE-SR SFP+, 850-nm Multimode, 300 m, LC LE2731C
LSP422 10GBASE-SR SFP+, 1310-nm Single-Mode, 10 km, LC LE2731C

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Chapter 2: Overview
Table 2-5. LE2700 Series Hardened Managed Modular Switches LEDs.
Number LED Color Status Description
1PWR Green On DC power on
Green Blinking Upgrading firmware
2PW1 Green On DC power module 1 activated
3PW2 Green On DC power module 2 activated
4R.M. Green On Ring Master
5Ring Green On Ring enabled
Green Slowly blinking Ring structure is broken (i.e. part of the ring is disconnected)
Green Fast blinking Ring disabled
6Fault Amber On Errors (power failure or port malfunctioning)
7DEF Green On System reset to default
8RMT Green On Accessed remotely
9LNK Green On Port link up
10 SPD Green Blinking Data transmitted
11 FDX Amber On Port works under full duplex

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Chapter 3: Hardware Installation
3. Hardware Installation
3.1 Rackmount Installation
The switch comes with two rackmount kits to allow you to fasten the switch to a rack in any environment.
Follow the steps below to install the switch to a rack.
Step 1: Install left and right front mounting brackets to the switch using 4 M3 screws on each side provided with switch.
Step 2: With front brackets orientated in front of the rack, nest front and rear brackets together. Fasten together using remaining
M4 screws into counter sunk holes.
Step 3: Fasten the front mounting bracket to the front of the rack.
Figure 3-1. Installing the module.
3.2 Module Installation
3.2.1 RJ-45 Module (LE2720C)
Each LE2700 Series Hardened Managed Modular Switches switch supports a maximum of three RJ-45 modules, giving you a total
of 24 RJ-45 ports. Follow the steps bellow for installation.
Step 1: Switch off the power of the switch.
Step 2: Insert the modules in Slot 1, 2, and 3 respectively.
Step 3: Switch on the power of the switch.

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Chapter 3: Hardware Installation
Figure 3-3. RJ-45 module.
3.2.2 SFP Module (LE2721C)
Each LE2700 Series Hardened Managed Modular Switches switch supports a maximum of three SFP modules, giving you a total
of 24 SFP ports. Follow the steps bellow for installation.
Step 1: Switch off the power of the switch.
Step 2: Insert the modules in Slot 1, 2, and 3 respectively.
Step 3: Switch on the power of the switch.
Figure 3-4. SFP module.
3.2.3 100/1000 Mbps SFP Module (LE2722C) or 10G SFP+ Module (LE2731C)
Each LE2700 Series Hardened Managed Modular Switches switch supports one 4-port GE SFP or 10G SFP+ module, giving you a
total of four GE or 10G ports. Follow the steps bellow for installation. The module can be plugged into the 10-Gigabit Ethernet
port of the switch and links the switch with a fiberoptic network.
Follow the steps bellow for installation.
Step 1: Switch off the power of the switch.
Step 2: Insert the module in Slot 4.

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Page 18
Chapter 3: Hardware Installation
Step 3: Switch on the power of the switch.
Figure 3-5. 10G SFP+ module.
CAUTION:
1. The 10G slot can accommodate a Gigabit or 10G module (LE2722C or LE2731C); therefore, do not insert the LE2722C or
LE2731C module in other slots.
2. Removing and installing an Ethernet module can shorten its useful life. Do not remove and insert the modules more often than
is absolutely necessary.
3.2.4 Power Module
Each LE2700 Series Hardened Managed Modular Switches switch supports a maximum of two power modules. Follow the steps
bellow for installation.
Step 1: Switch off the power of the switch.
Step 2: Insert the modules in Power 1 and 2 slots respectively.
Step 3: Switch on the power of the switch.
Figure 3-6. Power module.

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Chapter 3: Hardware Installation
3.3 Wiring
WARNING:
Do not disconnect modules or wires unless power has been switched off or the area is known to be non-hazardous. The devices
may only be connected to the supply voltage shown on the type plate.
ATTENTION:
1. Be sure to disconnect the power cord before installing and/or wiring your switches.
2. Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes dictating the
maximum current allowable for each wire size.
3. If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your equipment.
4. Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must cross, make sure the
wires are perpendicular at the intersection point.
5. Do not run signal or communications wiring and power wiring through the same wire conduit. To avoid interference, wires
with different signal characteristics should be routed separately.
6. You can use the type of signal transmitted through a wire to determine which wires should be kept separate. The rule of
thumb is that wiring sharing similar electrical characteristics can be bundled together.
7. Separate input wiring from output wiring.
8. Label the wiring to all devices in the system.
3.3.1 Grounding
Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run the ground connection
from the ground screws to the grounding surface prior to connecting devices.
3.3.2 Fault Relay
The relay contact of the 2-pin terminal block connector is used to detect user-configured events. The two wires attached to the
fault contacts form an open circuit when a user-configured event is triggered. If a user-configured event does not occur, the fault
circuit remains closed.
3.3.3 Redundant Power Inputs
The LE2700 Series Hardened Managed Modular Switches switches support dual redundant power supplies, Power Supply 1
(PWR1) and Power Supply 2 (PWR2). The connections for PWR1, PWR2 and the RELAY are located on the terminal block.
Step 1: Insert the negative/positive DC wires into the V-/V+ terminals, respectively.
Step 2: To keep the DC wires from pulling loose, use a small flat-blade screwdriver to tighten the wire-clamp screws on the front
of the terminal block connector.
Step 3: Insert the plastic terminal block connector prongs into the terminal block receptor.
Figure 3-7. Redundant power inputs.

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Chapter 3: Hardware Installation
3.4 Connection
3.4.1 Cables
1000/100BASE-TX/10BASE-T Pin Assignments
The LE2700 Series Hardened Managed Modular Switches switches come with standard Ethernet ports. According to the link type,
the switch uses CAT 3, 4, 5,5e UTP cables to connect to any other network devices (PCs, servers, switches, routers, or hubs).
Refer to the following table for cable specifications.
Table 3-1. Cable types and specifications.
Cable Type Max. Length Connector
10BASE-T CAT3, 4, 5 100-ohm UTP 328 ft. (100 m) RJ-45
100BASE-TX CAT5 100-ohm UTP UTP 328 ft. (100 m) RJ-45
1000BASE-TX CAT5/CAT5e 100-ohm UTP UTP 328 ft. (100 m) RJ-45
With 1000/100BASE-TX/10BASE-T cables, pins 1 and 2 are used for transmitting data, and pins 3 and 6 are used for receiving
data. Table 3-2. 10/100BASE-T RJ-45 pin assignments.
Pin Number Assignment
1TD+
2TD-
3RD+
4Not used
5Not used
6RD-
7Not used
8Not used
Table 3-3. 1000BASE-T RJ-45 pin assignments.
Pin Number Assignment
1BI_DA+
2BI_DA-
3BI_DB+
4BI_ DC+
5B I _ D C-
6BI_DB-
7BI_DD+
8BI_DD-
The LE2700 series switches support auto MDI/MDI-X operation. You can use a cable to connect the switch to a PC. Table 3-4
shows the 10BASE-T/ 100BASE-TX MDI and MDI-X port pinouts.