OSD NETWORKS OSD2251E User manual
OSD2251E
Lite Managed 4-port Ethernet Switch with
SNMP & VLAN
2 x 10/100/1000BASE-T & 2 x Gigabit SFP
Operator Manual
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OSD2251E Operator Manual
INDEX 1
1TECHNICAL SUMMARY ................................................................................................5
1.1 BRIEF DESCRIPTION.................................................................................................5
1.1.1 OVERVIEW ...........................................................................................................................5
1.1.2 FEATURES AND BENEFITS ................................................................................................5
1.2 TYPICAL SYSTEM DESIGN........................................................................................6
1.3 TECHNICAL SPECIFICATIONS..................................................................................7
1.4 PORT ALLOCATION....................................................................................................8
2INSTALLATION AND OPERATION...............................................................................9
2.1 INTRODUCTION..........................................................................................................9
2.2 INSTALLATION............................................................................................................9
2.2.1 WARNING AND PRECAUTIONS..........................................................................................9
2.2.2 DRAWINGS AND DIMENSIONS.........................................................................................10
2.2.3 LOCATION ..........................................................................................................................11
2.2.4 POWER SUPPLY CONNECTIONS.....................................................................................11
2.2.5 ALARM CONNECTION .......................................................................................................12
2.2.6 USB CONNECTOR.............................................................................................................13
2.2.7 MINI USB PORT..................................................................................................................14
2.2.8 LED INDICATORS...............................................................................................................15
2.2.9 CONTROLS.........................................................................................................................16
2.2.10 FITTING SFP CONNECTORS ............................................................................................17
2.3 OPERATION..............................................................................................................18
2.3.1 CONNECTIONS..................................................................................................................18
2.4 COMMAND LINE INTERFACE..................................................................................20
2.4.1 TERMINAL EMULATION SETUP........................................................................................20
2.4.2 COMMAND LINE FUNCTIONS...........................................................................................21
3WEB GUI.......................................................................................................................38
3.1.1 LOGGING ON TO THE SWITCH ........................................................................................39
3.1.2 GUI MENU...........................................................................................................................40
4MAINTENANCE............................................................................................................59
4.1 INTRODUCTION........................................................................................................59
4.2 EXTERNAL INSPECTION .........................................................................................59
4.3 ROUTINE MAINTENANCE........................................................................................59
5WARRANTY..................................................................................................................60
5.1 WARRANTY PERIOD................................................................................................60
5.2 REPAIRS ...................................................................................................................60
5.2.1 WARRANTY REPAIRS .......................................................................................................60
5.2.2 OUT-OF-WARRANTY REPAIRS.........................................................................................60
5.2.3 SITE REPAIRS....................................................................................................................60
5.2.4 EXCLUSIONS .....................................................................................................................60
FIGURE 1: TYPICAL RING CONFIGURATION.........................................................................6
FIGURE 2: PORT ALLOCATION...............................................................................................8
FIGURE 3: MOUNTING DIMENSIONS ...................................................................................10
FIGURE 4: POWER SUPPLY CONNECTIONS ......................................................................11
FIGURE 5: ALARM OUTPUTS ................................................................................................12
FIGURE 6: CONTACT CLOSURE OUTPUT...........................................................................12
FIGURE 7: USB TYPE B CLI PORT........................................................................................13
FIGURE 8: CLI INSTALLATION...............................................................................................13
FIGURE 9: USB CONNECTOR...............................................................................................14
FIGURE 10: PORT/LED...........................................................................................................15
FIGURE 11: CONTROLS.........................................................................................................16
FIGURE 12: 8-WAY DIP SWITCH ...........................................................................................16
FIGURE 13: FITTING/REMOVING SFP CONNECTORS .......................................................17
FIGURE 14: REDUNDANT RING CONFIGURATION.............................................................18
FIGURE 15: REDUNDANT RING CONNECTION...................................................................19
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FIGURE 16: BUS CONNECTION ............................................................................................19
FIGURE 17: SERIAL PORT SETTINGS..................................................................................20
FIGURE 18: VERSION CHECK...............................................................................................22
FIGURE 19: FACTORY DEFAULT SETTING..........................................................................23
FIGURE 20: IP CONFIGURATION ..........................................................................................24
FIGURE 21: TOPOLOGY CHECK...........................................................................................25
FIGURE 22: TOPOLOGY CHECK...........................................................................................26
FIGURE 23: NODE CHECK.....................................................................................................27
FIGURE 24: LOCAL NODE CHECK........................................................................................28
FIGURE 25: FLOAT BACKUP ENABLED 1.............................................................................29
FIGURE 26: RING TOPOLOGY...............................................................................................29
FIGURE 27: FLOAT BACKUP ENABLED 2.............................................................................30
FIGURE 28: FLOAT BACKUP ENABLED 3.............................................................................30
FIGURE 29: FLOAT BACKUP DISABLED 1............................................................................31
FIGURE 30: FLOAT BACKUP DISABLED 2............................................................................32
FIGURE 31: FLOAT BACKUP DISABLED 3............................................................................32
FIGURE 32: NODE IP SET......................................................................................................33
FIGURE 33: NODE ALL CHECK .............................................................................................33
FIGURE 34: REBOOT..............................................................................................................34
FIGURE 35: SNMP...................................................................................................................35
FIGURE 36: SNMP MENU.......................................................................................................36
FIGURE 37: PORT CONTROL ................................................................................................37
TABLE 1: TECHNICAL SPECIFICATIONS................................................................................7
TABLE 2: DC OR AC POWER CONNECTION........................................................................11
TABLE 3: ALARM CONNECTIONS.........................................................................................12
TABLE 4: LED FUNCTION.......................................................................................................15
TABLE 5: 8-WAY DIP SWITCH SETTINGS ............................................................................16
TABLE 6: TERMINAL COMMAND LINES ...............................................................................21
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1 TECHNICAL SUMMARY
1.1 BRIEF DESCRIPTION
1.1.1 OVERVIEW
The OSD2251E is a 4-port lite managed switch with two Gigabit RJ45 and two Gigabit SFP uplink ports
which can be used as standard ports or as a redundant fiber ring using OSD’s proprietary ring protocol.
Along with higher level features including VLAN and IGMP snooping the OSD2251E is suitable for use in
critical networks. A rugged IP30 casing, fan-less design and wide operating temperature range from -40 to
+75ºC make it suitable for use in a wide range of harsh industrial environments.
1.1.2 FEATURES AND BENEFITS
▲Complies with IEEE802.3i/802.3u/ 802.3ab
10/100/1000Base-T, IEEE802.3u 100Base-
Fx, IEEE802.3z 1000Base-Lx/Sx
standards
▲Has a total of four ports: two fixed copper
ports for 10/100/1000Base-T and two SFP
ports for the fiber ring or non-ring
(100Base-Fx or 1000Base-X)
▲A network diameter of hundreds of
kilometers is practical
▲Ring reconfiguration in the case of cable or
switch failures takes less than two
milliseconds per hop
▲MDI/MDIX Crossover: no need for
crossover cables
▲Can be used with either singlemode or
multimode fiber over a variety of link
budgets
▲Available for operation over 1 or 2 fibers
▲Supports 10KB jumbo frames
▲Auto-Negotiation for half or full duplex
operation
▲Powered by non-critical 10 to 36VDC or
24VAC supplies with dual power supply
inputs
▲Integrates with third party NMS system via
industry standard SNMP v1, v2, v3
▲Supports VLAN and IGMP snooping
▲Compatible with the OSD2244 and
OSD225* series Gigabit Ethernet switches
▲SFP modules sold separately
▲Operates over the temperature range of -
40°C to +75°C
▲DIN rail or wall mounting
▲Available for operation in ring or point to
point configuration
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1.3 TECHNICAL SPECIFICATIONS
TABLE 1: TECHNICAL SPECIFICATIONS
Hardware
Ethernet
2 x 10/100/1000Base-T RJ45
Jumbo Frame Support
10KB
SFP
2 x Gigabit SFP ports (100Mbps or 1000Mbps user selectable)
Optical Data Interface
IEEE802.3z 1000Base-Lx/Sx, IEEE802.3u 100Base-Fx
Enclosure Protection Class
IP30
Installation
DIN rail, wall mount or desktop
Alarm (ring version only)
Ring to Bus, High Temperature
Alarm Interface
Opto isolated MOSFET rated at 100mA @ 46V maximum
Alarm Connector
4 way 3.5mm terminal block
DIP Switch
8 way DIP switch for configuration
Power Requirements
+10V to +36V DC or 22 to 28VAC @ 8VA
Power Connector
4 way 5.08mm terminal block
Indicators
2 x Copper Link on each RJ45
2 x Copper Activity on each RJ45
2 x SFP Speed/Activity/Link on each SFP
1 x Initialise/Ring/Bus
1 x Power
Environmental
-40 to +75ºC
Relative Humidity
0 to 95% non-condensing
Dimensions
43W x 91D x 110H mm
Weight
480g
Management
Interfaces
Command Line Interface (CLI mini USB)
Web browser based Graphical User Interface (GUI) (Chrome or
Edge browser)
SNMP v1, v2c, v3
Port Configuration
Port enable/disable, Auto negotiation
Port Status
Speed, duplex mode, link status
VLAN
802.1Q VLAN
Multicast Protocol
RFC 2236 IGMP snooping v1, v2, v3
Ethernet Redundancy
OSD-Ring
SNMP MIBs
RFC 1213 MIB
Private MIB Framework
Contact OSD for full list of available MIB’s
Warranty
Warranty Period
5 years
MTBF (Ground Benign Environment,
30ºC)
724,000 hours
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1.4 PORT ALLOCATION
Front Panel: There are two fixed copper ports for 10/100/1000Base-T and two SFP ports.
Top Panel: The top panel consists of a 4-way 5.08mm terminal block power connector and a
4-way 3.5mm terminal block alarm connector.
Bottom Panel: 8-Way DIP switch, Type-A USB connector and a Type-B USB connector.
Each section will be described further throughout this manual.
FIGURE 2: PORT ALLOCATION
Front Panel
Top Panel
Bottom Panel
Ring LED
Power LED
Activity LED x2
Link LED x 2
RJ45 Port x 2
SFP Port x 2
Alarm Port
Dual Power
Port
Console Port
Programming
Port
Configuration
Switches
Earth Screw
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2 INSTALLATION AND OPERATION
2.1 INTRODUCTION
This section outlines the methods required to install and operate the OSD2251E successfully.
It should be studied carefully if damage to the equipment or poor results are to be avoided.
This equipment has been fully tested prior to dispatch and is ready for immediate operation.
However it is advisable to check for external transportation damage before operation. If
damage is evident, return the unit with the packaging to your supplier immediately.
2.2 INSTALLATION
2.2.1 WARNING AND PRECAUTIONS
▲ELECTROMAGNETIC COMPATIBILITY
WARNING: This is a Class A product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate measures.
▲OPTICAL OUTPUT OPERATION
WARNING: Laser Safety: Class 1 Laser Product per IEC/EN 60825-1:2014 standard.
Class 1
The OSD2251E is a Class 1 laser product.
PRECAUTIONS
▲All service personnel should be provided training as to the hazards of direct viewing
of laser radiation and of the precautionary measures during servicing of equipment
▲Areas where laser products are installed should be restricted in access to trained
service personnel only and appropriate warning signs posted in the work area.
▲All laser apertures should be covered by protective covers when not connected to
optical fibers. Never leave outputs uncovered.
▲Laser equipment should be positioned above or below eye level where possible.
Apertures should be positioned away from personnel.
▲Protective eyewear should be worn in the vicinity of laser equipment.
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2.2.2 DRAWINGS AND DIMENSIONS
The OSD2251E is designed to be wall mounted onto a DIN-Rail (35mm top hat) fixture or by
using 4 x M4 captivated screws (DIN Rail mount requires removal and flanges repositioned –
see below). The unit dimensions (excluding connectors, SFPs, etc) is shown in Figure 3
below.
DIN Mount Wall Mount
DIN to Wall Mount Conversion
FIGURE 3: MOUNTING DIMENSIONS
Unscrew x
4
Remove
DIN
Unscrew x 2
(Top & Bottom)
Rotate
Screw x 2
(Top & Bottom)
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2.2.3 LOCATION
As with any electrical device, the OSD2251E should be placed where the switch will not be
subjected to extreme temperatures, humidity, or electromagnetic interference. Specifically,
the site selected should meet the following requirements:
The ambient temperature should be between -40°C to 75°C.
The relative humidity should be less than 95 percent, non-condensing.
Surrounding electrical devices should not exceed the electromagnetic field (RFC)
standards.
Make sure that the switch receives adequate ventilation. Do not block the ventilation
holes on any side of the switch.
2.2.4 POWER SUPPLY CONNECTIONS
The OSD2251E requires external power to the Redundant DC Terminal Block Power
Connector located at the top of the unit. Always ensure that the power is off before any
installation.
Redundant DC Terminal Block Power Inputs
There are two pairs of power inputs for use with redundant power sources. Only one power
input is required to be connected to run the switch.
Step 1: Connect the DC power to the appropriate power source, connect the plug-able
terminal block on the OSD2251E switch and then turn power on.
Step 2: Disconnect the power if you want to shut down the switch.
TABLE 2: DC OR AC POWER CONNECTION
External Power Pin
Specification
Power 1 +
+10 to 36VDC or 22 to 28 VAC @ 8VA
Power 1 0V
Ground –0V
Power 2 +
+10 to 36VDC or 22 to 28 VAC @ 8VA
Power 2 0V
Ground –0V
Earth Ground Connection
FIGURE 4: POWER SUPPLY CONNECTIONS
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OSD2251E Operator Manual
2.2.5 ALARM CONNECTION
The OSD2251E has two monitoring alarm outputs: 1) Ring to Bus Alarm and 2) Temperature
Alarm. The alarm connections and conditions for alarm outputs are as set out in Table 3.
There are four pins on the 3.5mm terminal block used alarm output. Maximum ratings the
OSD2251E relay can drive is 100mA @ 46V(max). Note: Alarm output has no polarity.
TABLE 3: ALARM CONNECTIONS
Alarm
Output
Alarm1 Ring /Bus
Status
Alarm CH2 Temperature
Open
Ring
Less than 90C
Closed
Bus*
Higher than 90C
*Note: Bus alarm is only triggered after a ring connection is established.
FIGURE 5: ALARM OUTPUTS
FIGURE 6: CONTACT CLOSURE OUTPUT
Alm1
Alm2
OSD2251E
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2.2.6 USB CONNECTOR
The OSD2251E has a USB –Type B connector located on the bottom of the unit that is used
for Command Line Interface (CLI) from the PC to the OSD2251E via the PC’s USB connector.
See section 2.4 for further CLI information.
FIGURE 7: USB TYPE B CLI PORT
To operate and control the OSD2251E using the CLI, a proprietary driver will be required to
be installed onto the PC being used. The driver can be found and downloaded via the
following site: www.silabs.com and searching for the CP210x driver. Download the relevant
driver for your operating system, install and follow the installation instructions from your PC.
FIGURE 8: CLI INSTALLATION
USB Type B - CLI Port
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2.2.7 MINI USB PORT
The Mini USB Port is used for uploading firmware updates. All OSD2251E units will be
shipped with the latest firmware already installed. This port has no function for end user.
FIGURE 9: USB CONNECTOR
Mini USB Port
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2.2.8 LED INDICATORS
FIGURE 10: PORT/LED
TABLE 4: LED FUNCTION
No
Function
LED Colour Function
On
Blink
Off
Green
Gr/Am
Amber
Power
-
No Power*
Power
-
-
Ring/Bus
Initial
Non-Ring
Ring
Initializing
Bus
No Activity
Activity
No Link
Active
-
-
Link
Present
-
No Link
-
-
On
No Activity
Activity
No Link
1Gbps
-
100Mbps
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2.2.9 CONTROLS
The OSD2251E has an 8-way DIP switch to control a number of functions. Table 5 outlines
the function of each switch.
FIGURE 11: CONTROLS
FIGURE 12: 8-WAY DIP SWITCH
TABLE 5: 8-WAY DIP SWITCH SETTINGS
SWITCH
NUMBER
DESCRIPTION
FUNCTION
SWITCH
POSITION
1
GUI Mode
GUI Enabled
ON*
GUI Disabled
OFF
2
Not used
-
OFF*
3
Not used
-
OFF*
4
Not used
-
OFF*
5
Ring/Non Ring
Mode
Unmanaged Mode
ON
Ring Mode
OFF*
6
Port 3 Fiber Speed
100Mbps
ON
1Gbps
OFF*
7
Port 4 Fiber Speed
100Mbps
ON
1Gbps
OFF*
8
Reserved
-
OFF*
* Default settings.
ϮAt Off position and power-up, unit will switch to default settings.
Note: The unit requires a power cycle (Off/On) for any switch position change to take effect.
ON
OFF
1
2
3
4
5
6
7
8
8-Way DIP Switch
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2.2.10 FITTING SFP CONNECTORS
Care should be taken when inserting/removing the SFP connectors from SFP port 3 and 4 as
SFP modules are Electrostatic (ES) sensitive and Electrostatic Discharge (ESD) precautions
should be taken when installing. Ensure that the SFP is fully engaged and latched into
position.
Inserting SFP –Ensure that the SFP lever is in the locked position and insert into appropriate
SFP port. Gently push the SFP until it locks into place. Remove plastic/rubber dust cap and fit
fiber cable or RJ45 plug.
Removing SFP –Remove fiber connector or RJ45 plug. Pull the SFP lever down to unlock
SFP from housing. Using the lever, gently pull the SFP out.
Fiber SFP
Copper SFP
FIGURE 13: FITTING/REMOVING SFP CONNECTORS
Inserting
SFP
Removing
SFP
1
2
Inserting
SFP
Removing
SFP
1
2
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OSD2251E Operator Manual
2.3 OPERATION
When using the OSD2251E for the first time, check that the unit is in good condition with no
visible damage.
Upon power up check that the indicators illuminate accordingly on power up (see Table 4).
2.3.1 CONNECTIONS
For RJ45 connection use Category 5 (CAT5) or higher. Length should be no more than 100
meters.
For singlemode fiber connections, fiber used must be 9/125μm singlemode fiber.
For multimode fiber connections, fiber used must be 50/125μm or 62/125μm multimode fiber.
Plug in the appropriate connectors for system configuration;
–RJ45 cable to fixed copper ports (port 1 and 2) and copper SFP modules
–LC or SC fiber cable to fiber SFP modules.
Redundant Ring Operation
The OSD2251E connected in a redundant ring topology providing maximum reliability on
critical networks (up to 64 nodes per ring). In the event of device or fiber failure the data path
will automatically switch to a secondary path in less than 2ms per node to maintain ring
network integrity.
FIGURE 14: REDUNDANT RING CONFIGURATION
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OSD2251E Operator Manual
To connect the OSD2251E in a redundant ring configuration ports 3 and 4 must be used
together with fiber SFPs. The non-ring ports (ports 1 & 2) should be used to connect to your
Ethernet devices (eg. Cameras, PLCs, computers, etc.)
Figure 15 shows the connection method. Typically the SFP used would be a fiber SFP with
duplex LC connectors. The dashed line indicates the closed loop, but more OSD2251E units
can be connected to the ring as required using this topology. Ensure that the switch settings
for port 4 and 5 are set to 1000Mbps (1Gbps) –see Table 5.
FIGURE 15: REDUNDANT RING CONNECTION
Bus Operation
To connect the OSD2251E in a bus configuration ports 3 and 4 must be used together with
fiber SFPs. The remaining ports (ports 1 & 2) should be used to connect to your Ethernet
devices (eg. Cameras, PLCs, computers, etc.)
FIGURE 16: BUS CONNECTION
Connect more OSD2251D units as required using this
topology
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2.4 COMMAND LINE INTERFACE
The Command Line Interface (CLI) is a useful tool for checking link status and debugging link
connections. To enable the use of CLI the OSD2251E must be connected to a PC with a
serial port and an appropriate cable as specified in section 2.2.6. Using a terminal emulation
program such as Hyperterminal, a number of command lines specific to the OSD2251E can
be implemented to check link/node status, ring/bus topology and enable/disable float backup.
2.4.1 TERMINAL EMULATION SETUP
Using a terminal emulation program such as hyperterminal the following parameters should
be set up for correct command line operation. Select the appropriate “COM port” set up for
the serial port.
FIGURE 17: SERIAL PORT SETTINGS
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