Diamond Epsilon-12G2 User Manual
Revision
Date
Comment
A.00
11/27/2013
Initial release
A.01
9/3/2014
Minor update
A.02
3/22/2016
Updated section 7.1 (Command Line Interface)
A.03
4/4/2017
Correction in console login
Epsilon-12G2 User Manual
Managed 14-Port Gigabit Ethernet Switch
Part Number 7460440
Copyright 2016
FOR TECHNICAL SUPPORT Diamond Systems Corporation
PLEASE CONTACT: 158 Commercial Street
Sunnyvale, CA 94086 USA
support@diamondsystems.com Tel 1-650-810-2500
Fax 1-650-810-2525
www.diamondsystems.com
CONTENTS
1. Important Safe Handling Information .............................................................................................................3
2. Introduction .......................................................................................................................................................4
2.1 Main Feature List ...........................................................................................................................................4
2.2 Mechanical and Environmental .....................................................................................................................5
2.3 Products .........................................................................................................................................................5
2.4 Cable List .......................................................................................................................................................5
3. Functional Overview .........................................................................................................................................6
4. Board Outline and Layout ................................................................................................................................7
5. Connector and Jumper List .............................................................................................................................8
5.1 Connector List ................................................................................................................................................8
5.2 Jumper Block .................................................................................................................................................8
6. Connector Pinout and Pin Description ...........................................................................................................9
6.1 Ethernet (J1-J12) ...........................................................................................................................................9
6.2 Serial Interface (J13) .....................................................................................................................................9
6.3 SFP Socket (J15)...........................................................................................................................................9
6.4 LED Status Signals (J17) ........................................................................................................................... 10
6.5 Input Power (J18) ....................................................................................................................................... 11
7. Software Interfaces ........................................................................................................................................ 11
7.1 Command Line Interface ............................................................................................................................ 11
7.1.1 Making an Initial Connection .......................................................................................................... 11
7.1.2 General Command Groups ................................................................................................................ 12
7.1.3 IP Commands .................................................................................................................................... 12
7.1.4 MAC Commands ................................................................................................................................ 13
7.1.5 VLAN/PVLAN Commands ................................................................................................................. 13
7.1.6 dot1x (IEEE Standard for port-based Network Access Control) ........................................................ 13
7.1.7 LACP Commands .............................................................................................................................. 14
7.1.8 LLDP Commands ............................................................................................................................... 14
7.1.9 Access Management Commands ...................................................................................................... 14
7.1.10 Logging Commands ........................................................................................................................... 14
7.1.11 Spanning-tree Commands ................................................................................................................. 14
7.1.12 Green-Ethernet Commands ............................................................................................................... 15
7.1.13 Thermal-protect Commands .............................................................................................................. 15
7.1.14 Loop-protect Commands ................................................................................................................... 15
7.1.15 QoS Commands ................................................................................................................................ 15
7.1.16 Privilege Commands .......................................................................................................................... 15
7.1.17 SNMP Commands ............................................................................................................................. 16
7.1.18 SNTP Commands (config)# sntp ....................................................................................................... 16
7.1.19 Radius Server Commands ................................................................................................................. 16
7.1.20 Banner Commands (Defines a login banner) .................................................................................... 17
7.1.21 Terminal Commands .......................................................................................................................... 17
7.1.22 Reload ................................................................................................................................................ 17
7.1.23 Firmware Commands ......................................................................................................................... 17
7.1.24 Ping Commands ................................................................................................................................ 17
7.1.25 Debug Commands ............................................................................................................................. 17
7.1.26 Security Commands ........................................................................................................................... 17
7.1.27 Monitor ............................................................................................................................................... 18
7.2 Examples .................................................................................................................................................... 18
7.2.1 IP Configuration ................................................................................................................................. 18
7.2.2 Port Configuration .............................................................................................................................. 18
7.2.3 Change Switch Password .................................................................................................................. 19
7.2.4 Set up VLANs .................................................................................................................................... 19
7.2.5 SNMP configuration ........................................................................................................................... 19
7.2.6 Mirroring ............................................................................................................................................. 20
7.2.7 Setup QoS ......................................................................................................................................... 20
7.2.8 Factory defaults ................................................................................................................................. 20
7.3 Web Interface ............................................................................................................................................. 21
7.3.1 Web Interface Activation / Deactivation ............................................................................................. 22
8. Specifications ................................................................................................................................................. 23
Appendix A Supported MIBs ........................................................................................................................... 24
Epsilon-12G2 User Manual Revision A.02 www.diamondsystems.com Page 2
WARNING!
ESD-Sensitive Electronic Equipment
Observe ESD-safe handling procedures when working with this product.
Always use this product in a properly grounded work area and wear appropriate
ESD-preventive clothing and/or accessories.
Always store this product in ESD-protective packaging when not in use.
1. IMPORTANT SAFE HANDLING INFORMATION
Safe Handling Precautions
The Epsilon-12G2 board contains a high density connector with many connections to sensitive electronic
components. This creates many opportunities for accidental damage during handling, installation and connection
to other equipment. The list here describes common causes of failure found on boards returned to Diamond
Systems for repair. This information is provided as a source of advice to help you prevent damaging your
Diamond (or any vendor’s) boards.
ESD damage – This type of damage is usually almost impossible to detect, because there is no visual sign of
failure or damage. The symptom is that the board eventually simply stops working, because some component
becomes defective. Usually the failure can be identified and the chip can be replaced. To prevent ESD damage,
always follow proper ESD-prevention practices when handling computer boards.
Damage during handling or storage – On some boards we have noticed physical damage from mishandling. A
common observation is that a screwdriver slipped while installing the board, causing a gouge in the PCB surface
and cutting signal traces or damaging components.
Another common observation is damaged board corners, indicating the board was dropped. This may or may not
cause damage to the circuitry, depending on what is near the corner. Most of our boards are designed with at
least 25 mils clearance between the board edge and any component pad, and ground / power planes are at least
20 mils from the edge to avoid possible shorting from this type of damage. However these design rules are not
sufficient to prevent damage in all situations.
A third cause of failure is when a metal screwdriver tip slips, or a screw drops onto the board while it is powered
on, causing a short between a power pin and a signal pin on a component. This can cause overvoltage / power
supply problems described below. To avoid this type of failure, only perform assembly operations when the
system is powered off.
Sometimes boards are stored in racks with slots that grip the edge of the board. This is a common practice for
board manufacturers. However our boards are generally very dense, and if the board has components very close
to the board edge, they can be damaged or even knocked off the board when the board tilts back in the rack.
Diamond recommends that all our boards be stored only in individual ESD-safe packaging. If multiple boards are
stored together, they should be contained in bins with dividers between boards. Do not pile boards on top of each
other or cram too many boards into a small location. This can cause damage to connector pins or fragile
components.
Power supply wired backwards – Our power supplies and boards are not designed to withstand a reverse
power supply connection. This will destroy each IC that is connected to the power supply (i.e. almost all ICs). In
this case the board will most likely will be unrepairable and must be replaced. A chip destroyed by reverse power
or by excessive power will often have a visible hole on the top or show some deformation on the top surface due
to vaporization inside the package. Check twice before applying power!
Overvoltage on analog input – If a voltage applied to an analog input exceeds the design specification of the
board, the input multiplexor and/or parts behind it can be damaged. Most of our boards will withstand an
erroneous connection of up to 35V on the analog inputs, even when the board is powered off, but not all boards,
and not in all conditions.
Overvoltage on analog output – If an analog output is accidentally connected to another output signal or a
power supply voltage, the output can be damaged. On most of our boards, a short circuit to ground on an analog
output will not cause trouble.
Overvoltage on digital I/O line – If a digital I/O signal is connected to a voltage above the maximum specified
voltage, the digital circuitry can be damaged. On most of our boards the acceptable range of voltages connected
to digital I/O signals is 0-5V, and they can withstand about 0.5V beyond that (-0.5 to 5.5V) before being damaged.
However logic signals at 12V and even 24V are common, and if one of these is connected to a 5V logic chip, the
chip will be damaged, and the damage could even extend past that chip to others in the circuit.
Epsilon-12G2 User Manual Revision A.02 www.diamondsystems.com Page 3
2. INTRODUCTION
Epsilon-12G2 is a managed, 14-Port Gigabit Ethernet Switch with wide power supply voltage input and a serial
management port. Epsilon-12G2 offers twelve 10/100/1000Mbps copper twisted pair ports, one 1G SFP socket,
and one 2.5G SFP socket on a COM Express format board. The board is standalone, so no bus connectors are
required. An RS-232 interface is provided to enable communication between the on-board management
microcontroller and a host processor through a command line interface (CLI). A wide-range DC power supply is
built into the board to allow it to be used with industrial power sources as well as the typical embedded +5V
supply.
Highly Advanced Gigabit Ethernet Switch
Epsilon-12G2 is a standalone 14-port Gigabit Ethernet managed switch in the COM Express form factor. It delivers
a comprehensive, end-to-end carrier Ethernet solution supporting MEF service delivery and timing over packet
solutions for IEEE 1588 and synchronous Ethernet.
Layer 2+ Managed Switch
Epsilon-12G2’s Ethernet switch chip includes a built-in microcontroller for configuration and management. It can
be accessed either through the on-board RS-232 port or one of the Ethernet ports.
Wide Power DC/DC Power Supply
Epsilon-12G2 can be powered through a wide voltage +5-40V DC/DC power supply input.
Rugged Design
Extended temperature operation of -40°C to +85°C is tested and guaranteed. Epsilon-12G2 was designed with
harsh applications in mind. Latching connectors provide increased reliability.
Software Support
The Epsilon-12G2 switch is ready to plug into your application without any driver installation or firmware
upgrades. An intuitive GUI web interface and a command line interface provide means for configuring and
managing the switch.
2.1 Main Feature List
12 10/100/1000Mbps copper Ethernet ports with nonblocking wire-speed performance
1 1G SFP socket and 1 2.5G SFP socket
Dual leaky bucket policers with remarking and statistics
Jumbo frame support at all speeds
8K MAC addresses and 4K VLANs (IEEE 802.1Q), as well as 8K IPv4 and IPv6 multicast group support
Flexible link aggregation support based on Layer-2 through Layer-4 information (IEEE 802.3ad)
Multicast and broadcast storm control, as well as flooding control
RSTP and MSTP
8 priorities and 8 QoS queues per port with scheduling
Shaping/policing per queue and per port
Multiple protocol support: IEEE 802.1d, IEEE 802.1w, IEEE 802.1s, and IEEE 802.1X
Built-in 416MHz MIPS 24KEC microcontroller for configuration and management
RS-232 serial port provides out-of-band management interface
Can operate autonomously or in conjunction with a host SBC
Wide input voltage range: +5-40VDC input
COM Express form factor (95 x 125mm)
Epsilon-12G2 User Manual Revision A.02 www.diamondsystems.com Page 4
Model Number
Description
EPS-12G2
14-Port Gigabit Ethernet Switch, COM Express form factor,
-40°C to +85°C operating temperature
CK-EPS12G2
Epsilon-12G2 Cable Kit
Number
Part Number
Quantity
Description
1
6981050
1
Serial cable
2
6981052
12
Ethernet cable (1 per port)
3
6981053
1
Power cable
2.2 Mechanical and Environmental
COM Express compliant form factor including:
Board dimensions
Mounting holes
Component height
-40°C to +85°C ambient operating temperature
2.3 Products
The table below lists the model number and description for the Epsilon-12G2 and its associated cable kit.
2.4 Cable List
The contents of the Epsilon-12G2 Cable Kit, CK-EPS12G2, are shown below.
All trademarks are the property of their respective owners.
Epsilon-12G2 User Manual Revision A.02 www.diamondsystems.com Page 5
3. FUNCTIONAL OVERVIEW
Functional Block Diagram
Epsilon-12G2 is an 14-Port managed Gigabit Ethernet switch module offering 10/100/1000Mbps copper twisted
pair ports, one 1G SFP socket, and one 2.5G SFP socket on a COM Express form factor board. Epsilon-12G2
operates standalone, requiring no connection to a single board computer in the stack.
Epsilon-12G2 is a Layer 2+ managed Ethernet switch with built-in microcontroller and memory for configuration
and management. The Flash memory holds dual application images along with the boot code, The SRAM is used
for program execution and storing the MAC addresses. The EEPROM holds the configuration parameters. .
An RS-232 interface is provided to enable communication between the on-board management microcontroller
and a host processor through a CLI interface. The microcontroller is also accessible through one of the Ethernet
ports via a web management interface.
Power is provided through the +5-40VDC wide-range DC power supply built into the board, enabling use with
industrial power sources.
Epsilon-12G2 User Manual Revision A.02 www.diamondsystems.com Page 6
Figure 1. Functional Block Diagram
J12
J13
J17
J15
J11
J10
J9
J8
J7
J6
J5
J4
J3
J2
J1
J18
J19
4. BOARD OUTLINE AND LAYOUT
The following image shows the locations for all connectors and jumpers which are described in the next sections.
Figure 2. Epsilon-12G2 (Connectors and Jumpers)
Epsilon-12G2 User Manual Revision A.02 www.diamondsystems.com Page 7
Connector
Function
J1-J12
Gigabit Ethernet (x12)
J13
RS-232 Serial Interface
J15
Dual SFP Ethernet sockets
J17
LED Status Signals and Resets
J18
Power In
Jumper
J19 Pins
Function
1&2
Reset: Install jumper and apply power to reset the switch
5. CONNECTOR AND JUMPER LIST
5.1 Connector List
The following table summarizes the functions of Epsilon-12G2’s interface connectors. Refer to the Figure 2 for the
locations of these connectors on Epsilon-12G2. Signal functions relating to all of Epsilon-12G2’s interface
connectors are discussed in greater detail in Section 6 of this document. Other connectors and jumper blocks on
Epsilon-12G2 are reserved for Diamond Systems’ use only.
5.2 Jumper Block
The following table summarizes the functions of Epsilon-12G2’s jumper block, J19. Refer to the drawing in
Section 4 for the location of this jumper block on Epsilon-12G2.
Epsilon-12G2 User Manual Revision A.02 www.diamondsystems.com Page 8
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