Black Box LE2700A, LE2721C, LE2710C, LE2700AE, LE2722C User Manual
...
LE2700A LE2710C LE2721C
LE2700AE LE2711C LE2722C
LE2700UK LE2720C LE2731C
LE2700 Series Hardened Managed Modular Switches
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.
Customer
Support
Information
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 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info @blackbox.com
Trademarks Used in this Manual
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.
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.
Page 2
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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 inter ference 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 emis sion 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 S SH .....................................................................................................................................................................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 Synchroniz ation ......................................................................................................................................................... 127
5.12 Troubleshooting ......................................................................................................................................................... 13 0
5.12.1 Factory Defa u lt s .............................................................................................................................................. 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 Tab le 8 K
Network Redundancy MR P,
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 /100 0BASE-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 /100/1000BA SE-T R J-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 info@blackbox.com.
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 /100/1000BA SE-T R J-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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Pa ge 11
Chapter 2: Overview
2.4 Hardware Description
10-Gigabit or Gigabit Ethernet module
installs in slot 4
Figure 2-1. Front panel.
Power module slot 2
Power module
installed in slot 2
Power module slot 1
Power module
installed in slot 1
Figure 2-2. Back panel.
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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
8
Table 2-2. LE2700 Series Hardened Managed Modular Switches Components2
Number Component Description
1
2
3
Model name
System and Port status LEDs System LEDs include PWR/PWR1/PWR2/R.M/Ring/Fault/DEF.
Serial console port
Front view
Rear view
Name of product
Port LEDs include LINK/SPD/FDX/port number.
Links to console for management.
7
4
5 LED mode button To change port LED mode, press the Mode button.
6 Ethernet module slots Enable different RJ-45/SFP modular combinations based on your needs.
7 Power input module slots Houses power input modules.
8 Terminal block Links to DC connector.
Reset button
Press Reset for 3 seconds to reset and 5 seconds to return to factory default.
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Page 13
Chapter 2: Overview
B-Ring provides two 10 Gigabit modules and four Gigabit Ethernet modules to meet your demand for high speed. For applications 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 /100/1000BA SE-T R J-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
LFP402 SFP, 155-Mbps Fiber with Extended Diagnostics, 1310-nm Multimode, LC,
2 km
LFP403 SFP, 155-Mbps Fiber with Extended Diagnostics, 1310-nm,
Single-Mode, LC, 30 km
LFP404 SFP, 155-Mbps Fiber with Extended Diagnostics, 1310-nm
Single-Mode, Plus, LC, 60 km
LFP411 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 850-nm
Multimode, LC, 300 m
LFP412 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 1310-nm Multimode, LC,
2 km
LFP413 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 1310-nm
Single-Mode, LC, 10 km
LFP414 SFP, 1.25-Gbps Fiber with Extended Diagnostics, 1310-nm
Single-Mode, LC, 30 km
LSP421 10GBASE-SR SFP+, 850-nm Multimode, 300 m, LC LE2731C
LSP422 10GBASE-SR SFP+, 1310-nm Single-Mode, 10 km, LC LE2731C
LE2721C
LE2721C
LE2721C
LE2721C
LE2721C
LE2721C
LE2721C
LE2721C
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Table 2-5. LE2700 Series Hardened Managed Modular Switches LEDs.
Number LED Color Status Description
1
PWR Green On DC power on
Green Blinking Upgrading firmware
Chapter 2: Overview
2
3
4
5
6
7
8
9
10
11
PW1 Green On DC power module 1 activated
PW2 Green On DC power module 2 activated
R.M. Green
Ring Green On Ring enabled
Green Slowly blinking Ring structure is broken (i.e. part of the ring is disconnected)
Green Fast blinking Ring disabled
Fault Amber On Errors (power failure or port malfunctioning)
DEF Green On System reset to default
RMT Green On Accessed remotely
LNK Green On Port link up
SPD Green Blinking Data transmitted
FDX Amber On Port works under full duplex
On
Ring Master
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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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Figure 3-3. RJ-45 module.
Chapter 3: Hardware Installation
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.
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.
Figure 3-4. SFP module.
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Chapter 3: Hardware Installation
Step 3: Switch on the power of the switch.
CAUTION:
Figure 3-5. 10G SFP+ module.
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.
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Figure 3-6. Power module.
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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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3.4 Connection
3.4.1 C ab l e s
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
1 TD+
2 TD-
3 RD+
4 Not used
5 Not used
6 RD-
7 Not used
8 Not used
Table 3-3. 1000BASE-T RJ-45 pin assignments.
Pin Number Assignment
1 BI_DA+
2 BI_DA-
3 BI_DB+
4 BI_DC+
5 B I _D C-
6 BI_DB-
7 BI_DD+
8 BI_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.
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Table 3-4. 10/100BASE-T MDI/MDI-X Pin Assignments.
Pin Number MDI port MDI-X port
1 TD+(transmit) RD+(receive)
2 TD- (transmit) RD- (receive)
3 RD+(receive) TD+(transmit)
4 Not used Not used
5 Not used Not used
6 RD- (receive) TD- (transmit)
7 Not used Not used
8 Not used Not used
Table 3-5. 1000BASE-T MDI/MDI-X Pin Assignments.
Pin Number MDI port MDI-X port
1 BI_DA+ BI_DB+
2 BI_DA- BI_DB-
3 BI_DB+ BI_DA+
4 BI_DC+ BI_DD+
5 B I _D C- BI_DD-
6 BI_DB- BI_DA-
7 BI_DD+ BI _DC+
8 BI_DD- BI _ DC-
NOTE: “+” and “-” signs represent the polarity of the wires that make up each wire pair.
RS-232 port wiring
You can manage the LE2700 Series Switch via console ports using a RS-232 cable (included). Connect the port to a PC via the
RS-232 cable with a DB9 female connector. The DB9 female connector of the RS-232 cable should be connected to the PC while
the other end of the cable (RJ-45 connector) should be connected to the console port of the switch.
Table 3-6. RS-232 port wiring.
PC Pinout (Male) Assignment RS-232 with DB9 Female Connector DB9 to RJ-45
Pin #2 RD Pin #2 TD Pin #2
Pin #3 TD Pin #3 RD Pin #3
Pin #5 GD Pin #5 GD Pin #5
Figure 3-8. RS-232 port wiring diagram.
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3.4.2 SFP
The switch comes with fiber optical ports that can connect to other devices using SFP modules. The fiber optical ports are in
multimode (0 to 550 m, 850 nm with 50/125-µm, 62.5/125-µm fiber) and single-mode with LC connectors. Remember to
connect the TX port of Switch A should be connected to the RX port of Switch B.
Figure 3-9. Fiber optic ports.
3.4.3 B-Ring/B-Chain
B-Ring
You can connect three or more switches to form a ring topology to gain network redundancy capabilities through the following
steps.
1. Connect each switch to form a daisychain using an Ethernet cable.
2. Set one of the connected switches to be the master and make sure the port setting of each connected switch on the
management page corresponds to the physical ports connected. For information about the port setting, please refer to
Section 4.1.2, Configuration.
3. Connect the last switch to the first switch to form a ring topology.
B-Ring
Figure 3-10. B-Ring.
Coupling Ring
If you already have two B-Ring topologies and would like to connect the rings, you can form them into a coupling ring. All you
need to do is select two switches from each ring to be connected, for example, switch A and B from Ring 1 and switch C and D
from ring 2. Decide which port on each switch to be used as the coupling port and then link them together, for example, port 1
of switch A to port 2 of switch C and port 1 of switch B to port 2 of switch D. Then, enable Coupling Ring option by checking
the checkbox on the management page and select the coupling ring in correspondence to the connected port. For more
information on port setting, refer to Section 4.1.2, Configuration. Once the setting is completed, one of the connections will act
as the main path while the other will act as the backup path.
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B-Ring
Figure 3-11. Coupling ring.
Dual Homing
If you want to connect your ring topology to a RSTP network environment, you can use dual homing. Choose two switches
(Switch A & B) from the ring for connecting to the switches in the RSTP network (Ciscos switches). The connection of one of the
switches (Switch A or B) will act as the primary path, while the other will act as the backup path that is activated when the
primary path connection fails.
B-Ring
B-Chain
When connecting multiple B-Rings to meet your expansion demand, you can create an B-Chain topology through the following
steps.
1. Select two switches from the chain (Switch A & B) that you want to connect to the B-Ring and connect them to the switches in
the ring (Switch C & D).
2. In correspondence to the port connected to the ring, configure an edge port for both of the connected switches in the chain
by checking the box in the management page (see Section 4.1.2, Configuration).
B-Ring
Figure 3-12. Dual homing.
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3. Once the setting is completed, one of the connections will act as the main path, and the other as the backup path.
B-Ring
Figure 3-13. B-Chain.
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Chapter 4: Redundancy
4. Redundancy
Redundancy for minimized system downtime is one of the most important concerns for industrial networking devices. Hence,
B-Ring has developed proprietary redundancy technologies including B-Ring, O-RSTP, and Open-Ring featuring faster recovery
time than existing redundancy technologies widely used in commercial applications, such as STP, RSTP, and MSTP. B-Ring’s
proprietary redundancy technologies not only support different networking topologies, but also assure the reliability of the
network.
4.1 B-Ring
4.1.1 Introduction
B-Ring is a proprietary redundant ring technology, with recovery time of less than 10 milliseconds and up to 250 nodes. The ring
protocols identify one switch as the master of the network, and then automatically block packets from traveling through any of
the network’s redundant loops. If one branch of the ring gets disconnected from the rest of the network, the protocol automatically readjusts the ring so that the part of the network that was disconnected can reestablish contact with the rest of the network. The B-Ring redundant ring technology can protect mission-critical applications from network interruptions or temporary
malfunction with its fast recover technology.
4.1.2 Configurations
B-Ring supports three ring topologies: Ring Master, Coupling Ring, and Dual Homing. You can configure the settings in the
interface below.
Table 4-1. Configuration screen components.
Label Description
Redundant Ring Check to enable B-Ring topology.
Ring Master Only one ring master is allowed in a ring. However, if more than one switch are
set to enable Ring Master, the switch with the lowest MAC address will be the
active ring master and the others will be backup masters.
1st Ring Port The primary port when the switch is ring master.
2nd Ring Port The backup port when the switch is ring master.
Coupling Ring Check to enable Coupling Ring. Coupling Ring can divide a big ring into two
smaller rings to avoid network topology changes affecting all switches. It is a good
method for connecting two rings.
Coupling Port Ports for connecting multiple rings. A coupling ring needs four switches to build
an active and a backup link.
Links formed by the coupling ports will run in active/backup mode.
Dual Homing Check to enable Dual Homing. When Dual Homing is enabled, the ring will be
connected to normal switches through two RSTP links (ex: backbone Switch). The
two links work in active/backup mode, and connect each ring to the normal
switches in RSTP mode.
Apply Click to apply the configurations.
NOTE: Do not set one switch as ring master and coupling ring at the same time, because this could cause heavy
loading.
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4.2 B-Chain
4.2.1 Introduction
B-Chain is Black Box’s revolutionary network redundancy technology which enhances network redundancy for any backbone
networks, providing ease-of-use and maximum fault-recovery swiftness, flexibility, compatibility, and cost-effectiveness in a set
of network redundancy topologies. The self-healing Ethernet technology designed for distributed and complex industrial networks
enables the network to recover in less than 10 ms for up to 250 switches if at any time a segment of the chain fails.
B-Chain allows multiple redundant rings of different redundancy protocols to join and function together as a large and the most
robust network topologies. It can create multiple redundant networks beyond the limitations of current redundant ring
technologies.
4.2.2 Configurations
B-Chain is very easy to configure and manage. Only one edge port of the edge switch needs to be defined. Other switches beside
them just need to have B-Chain enabled.
Table 4-2. B-Chain screen options.
Label Description
Enable Check to enable B-Chain function
1st Ring Port The first port connecting to the ring.
2nd Ring Port The second port connecting to the ring.
Edge Port A B-Chain topology must begin with edge ports. The ports with a smaller switch
MAC address will serve as the backup link and RM LED will light up.
4.3 MRP
4.3.1 Introduction
MRP (Media Redundancy Protocol) is an industry standard for high-availability Ethernet networks. MRP allowing Ethernet switches
in ring configuration to recover from failure rapidly to ensure seamless data transmission. A MRP ring (IEC 62439) can support up
to 50 devices and will enable a back-up link in 80ms (adjustable to max. 200ms/500ms).
4.3.2 Configurations
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Figure 4-1. MRP screen.
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Table 4-3. MRP configuration screen options.
Label Description
Enable Enables the MRP function
Manager Every MRP topology needs a MRP manager. One MRP topology can only have a
Manager. If two or more switches are set to be Manager, the MRP topology will
fail.
React on Link Change
(Advanced mode)
1st Ring Port Chooses the port which connects to the MRP ring
2nd Ring Port Chooses the port which connects to the MRP ring
4.4 STP/RSTP/MSTP
4.4.1 STP/RSTP
STP (Spanning Tree Protocol), and its advanced versions RSTP (Rapid Spanning Tree Protocol) and MSTP (Multiple Spanning Tree
Protocol), are designed to prevent network loops and provide network redundancy. Network loops occur frequently in large networks as when two or more paths run to the same destination, broadcast packets may get in to an infinite loop and hence causing congestion in the network. STP can identify the best path to the destination, and block all other paths. The blocked links will
stay connected but inactive. When the best path fails, the blocked links will be activated. Compared to STP which recovers a link
in 30 to 50 seconds, RSTP can shorten the time to 5 to 6 seconds.
Faster mode. Enabling this function will cause MRP topology to converge more
rapidly. This function only can be set in MRP manager switch.
STP Bridge Status
This page shows the status for all STP bridge instances.
Figure 4-2. STP bridge screen.
Table 4-4. STP bridge screen options.
Label Description
MSTI The bridge instance. You can also link to the STP detailed bridge status.
Bridge ID The bridge ID of this bridge instance.
Root ID The bridge ID of the currently selected root bridge.
Root Port The switch port currently assigned the root port role.
Root Cost Root path cost. For a root bridge, this is zero. For other bridges, it is the sum of
port path costs on the least cost path to the Root Bridge.
Topology Flag The current state of the Topology Change Flag for the bridge instance.
Topology Change Last The time since last Topology Change occurred.
Refresh Click to refresh the page immediately.
Auto-refresh Check this box to enable an automatic refresh of the page at regular intervals.
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STP Port Status
This page displays the STP port status for the currently selected switch.
Figure 4-3. STP Port Status screen.
Table 4-5. STP Port Status screen options.
Label Description
Port The switch port number to which the following settings will be applied.
CIST Role The current STP port role of the CIST port. The values include: AlternatePort, BackupPort, RootPort,
and DesignatedPort.
State The current STP port state of the CIST port. The values include: Blocking, Learning, and Forwarding.
Uptime The time since the bridge port is last initialized.
Refresh Click to refresh the page immediately.
Auto-refresh Check this box to enable an automatic refresh of the page at regular intervals.
STP Statistics
This page displays the STP port statistics for the currently selected switch.
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Figure 4-4. STP statistics screen.
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Table 4-6. STP statistics screen options.
Label Description
Port The switch port number to which the following settings will be applied.
RSTP The number of RSTP configuration BPDUs received/transmitted on the port.
STP The number of legacy STP configuration BPDUs received/transmitted on the port.
TCN The number of (legacy) topology change notification BPDUs received/transmitted on the port.
Discarded Unknown The number of unknown spanning tree BPDUs received (and discarded) on the port.
Discarded Illegal The number of illegal spanning tree BPDUs received (and discarded) on the port.
Refresh Click to refresh the page immediately.
Auto-refresh Check to enable an automatic refresh of the page at regular intervals.
STP Bridge Configurations
Table 4-7. STP Bridge Configuration screen options.
Label Description
Protocol Version The version of the STP protocol. Valid values include STP, RSTP, and MSTP.
Forward Delay The delay used by STP bridges to transit root and designated ports to forwarding (used in STP
compatible mode). The range of valid values is 4 to 30 seconds.
Max Age The maximum time the information transmitted by the root bridge is considered valid. The range of
valid values is 6 to 40 seconds, and Max Age must be <= (FwdDelay-1)*2.
Maximum Hop Count This defines the initial value of remaining hops for MSTI information generated at the boundary of
an MSTI region. It defines how many bridges a root bridge can distribute its BPDU information to.
The range of valid values is 4 to 30 seconds, and MaxAge must be <= (FwdDelay-1)*2.
Transmit Hold Count The number of BPDUs a bridge port can send per second. When exceeded, transmission of the next
BPDU will be delayed. The range of valid values is 1 to 10 BPDUs per second.
Save Click to save changes.
Reset Click to undo any changes made locally and revert to previously saved values.
Figure 4-5. STP Bridge Configuration screen.
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4.4.2 MSTP
Since the recovery time of STP and RSTP takes seconds, which are unacceptable in some industrial applications, MSTP was developed. The technology supports multiple spanning trees within a network by grouping and mapping multiple VLANs into different
spanning-tree instances, known as MSTIs, to form individual MST regions. Each switch is assigned to an MST region. Hence, each
MST region consists of one or more MSTP switches with the same VLANs, at least one MST instance, and the same MST region
name. Therefore, switches can use different paths in the network to effectively balance loads.
Port Settings
This page allows you to examine and change the configurations of current MSTI ports. A MSTI port is a virtual port, which is
instantiated separately for each active CIST (physical) port for each MSTI instance configured and applicable for the port. The MSTI
instance must be selected before MSTI port configuration options are displayed.
This page contains MSTI port settings for physical and aggregated ports. The aggregation settings are stack global.
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Figure 4-6. MSTI Port Configuration screens.
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