Optical Systems OSD2251P SERIES User manual

OPERATOR MANUAL
OSD2251P SERIES
4-PORT REDUNDANT RING
GIGABIT ETHERNET SWITCH WITH
PoE++ SOURCE

OPTICAL SYSTEMS DESIGN
DOC ID: 10115303
OSD2251P OPERATOR MANUAL
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INDEX 1
1 TECHNICAL SUMMARY ........................................................................................................5
1.1 BRIEF DESCRIPTION.............................................................................................................5
1.1.1 OVERVIEW............................................................................................................................................. 5
1.1.2 APPLICATIONS......................................................................................................................................5
1.1.3 FEATURES AND BENEFITS .................................................................................................................5
1.2 TYPICAL CONFIGURATION ................................................................................................6
1.3 TECHNICAL SPECIFICATIONS............................................................................................7
1.4 OSD2251P PORT ALLOCATION ...........................................................................................8
2 INSTALLATION AND OPERATION .....................................................................................9
2.1 INTRODUCTION.....................................................................................................................9
2.2 INSTALLATION......................................................................................................................9
2.2.1 WARNING AND PRECAUTIONS .........................................................................................................9
2.2.2 OSD2251P DRAWINGS AND DIMENSIONS..................................................................................... 10
2.2.3 LOCATION............................................................................................................................................ 11
2.2.4 POWER SUPPLY CONNECTIONS...................................................................................................... 11
2.2.5 OSD2251P ALARM CONNECTION .................................................................................................... 12
2.2.6 USB CONNECTOR ............................................................................................................................... 13
2.2.7 LED INDICATORS ............................................................................................................................... 15
2.2.8 CONTROLS ........................................................................................................................................... 16
2.2.9 FITTING SFP CONNECTORS.............................................................................................................. 17
2.3 OSD2251P OPERATION .......................................................................................................18
2.3.1 CONNECTIONS .................................................................................................................................... 18
2.4 T YPE -A USB P ORT ..................................................................................................................20
2.5 COMMAND LINE INTERFACE...........................................................................................21
2.5.1 TERMINAL EMULATION SETUP ...................................................................................................... 21
2.5.2 COMMAND LINE FUNCTIONS.......................................................................................................... 22
3 MAINTENANCE ......................................................................................................................32
3.1 INTRODUCTION...................................................................................................................32
3.2 EXTERNAL INSPECTION....................................................................................................32
3.3 ROUTINE MAINTENANCE .................................................................................................32
4 WARRANTY.............................................................................................................................33
4.1 WARRANTY PERIOD ..........................................................................................................33
4.2 REPAIRS ................................................................................................................................33
4.2.1 WARRANTY REPAIRS........................................................................................................................ 33
4.2.2 OUT-OF-WARRANTY REPAIRS ........................................................................................................ 33
4.2.3 SITE REPAIRS ...................................................................................................................................... 33
4.2.4 EXCLUSIONS ....................................................................................................................................... 33
FIGURE 1: OSD2251P TYPICAL RING CONFIGURATION...............................................................6
FIGURE 2: OSD2251P PORT ALLOCATION .......................................................................................8
FIGURE 3: OSD2251P MOUNTING DIMENSIONS...........................................................................10
FIGURE 4: OSD2251P 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: WIN XP INSTALLATION .................................................................................................14
FIGURE 9: PORT/LED ..........................................................................................................................15
FIGURE 10: OSD2251P CONTROLS ...................................................................................................16
FIGURE 11: OSD2251P 4-WAY DIP SWITCH....................................................................................16
FIGURE 12: FITTING/REMOVING SFP CONNECTORS ..................................................................17
FIGURE 13: REDUNDANT RING CONFIGURATION ......................................................................18
FIGURE 14: REDUNDANT RING CONNECTION.............................................................................19
FIGURE 15: BUS CONNECTION ........................................................................................................19
FIGURE 16: OSD2251P USB CONNECTOR .......................................................................................20

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OSD2251P OPERATOR MANUAL
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FIGURE 17: SERIAL PORT SETTINGS ..............................................................................................21
FIGURE 18: TOPOLOGY CHECK .......................................................................................................23
FIGURE 19: TOPOLOGY CHECK .......................................................................................................24
FIGURE 20: NODE CHECK..................................................................................................................25
FIGURE 21: LOCAL NODE CHECK ...................................................................................................26
FIGURE 22: FLOAT BACKUP ENABLED 1.......................................................................................27
FIGURE 23: RING TOPOLOGY...........................................................................................................27
FIGURE 24: FLOAT BACKUP ENABLED 2.......................................................................................28
FIGURE 25: FLOAT BACKUP ENABLED 3.......................................................................................28
FIGURE 26: FLOAT BACKUP DISABLED 1......................................................................................29
FIGURE 27: FLOAT BACKUP DISABLED 2......................................................................................30
FIGURE 28: FLOAT BACKUP DISABLED 3......................................................................................30
FIGURE 29: VERSION CHECK ...........................................................................................................31
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: OSD2251P 4-WAY DIP SWITCH SETTINGS ...................................................................16
TABLE 6: TERMINAL COMMAND LINES........................................................................................22

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OSD2251P OPERATOR MANUAL
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1TECHNICAL SUMMARY
1.1 BRIEF DESCRIPTION
1.1.1 OVERVIEW
The OSD2251P is a 4-port industrial switch with redundant ring Gigabit Ethernet and PoE++ Source providing
simple network management with real-time monitoring. It has two 10/100/1000Base-T RJ45 copper ports and
two SFP ports for the ring.
The OSD2251P incorporates redundant ring technology providing maximum reliability on critical networks. In
the event of device or fiber failure the data path will automatically switch to a secondary path in less than 2ms
per hop to maintain ring network integrity.
The OSD2251P has Power over Ethernet++ (PoE++) function and operates as a Power Source Equipment (PSE).
The OSD2251P PoE++ can provide up to 60W to each RJ45 from PSE. The unit will operate on either
singlemode or multimode fiber. Operation over a network of hundreds of kilometers is possible by use of the
appropriate optical devices. It normally requires two fibers but is optionally available for one fiber operation.
A major benefit of the OSD2251P is its reliable and consistent performance over the -20°C to +75°C temperature
range that allows it to be used in uncontrolled environments such as roadside cabinets, mine sites and factories.
1.1.2 APPLICATIONS
▲ Any network utilising a mix of copper
and fiber
▲ Industrial IP communications
▲ Self-healing Gigabit Ethernet backbone
networks
▲ Networks using Power over Ethernet
devices such as cameras, intercoms, access
control, telephones, etc.
1.1.3 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 (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
▲ OSDview Lite Network Management System
for ring version only
▲ 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
▲ Auto-Negotiation for half or full duplex
operation
▲ Supports IEEE802.af/at Alternative A, and B
cable wiring
▲ Complies with the IEEE802.3af/at standard
including compliant powered device (PD)
signature detection and classification.
▲ Provides up to 60W to each RJ45 port
▲ Powered by either one or two non-critical 46 to
57V
DC
supplies
▲ Operates over the temperature range of -20°C
to +75°C
▲ Compatible with the OSD2244 and OSD2254
Gigabit Ethernet switches
▲ DIN rail Mounting
▲ Available for operation in ring or point to point
configuration
▲ SFP module sold separately
▲ Supports 10KB jumbo frames

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1.2 TYPICAL CONFIGURATION
Figure 1 below indicates a possible set-up for an OSD2251P system.
FIGURE 1: OSD2251P TYPICAL RING CONFIGURATION

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1.3 TECHNICAL SPECIFICATIONS
TABLE 1: TECHNICAL SPECIFICATIONS
SPECIFICATION PERFORMANCE
Electrical Data Interface IEEE802.3i/802.3u/802.3ab, 10/100/1000Base-T Ethernet
Electrical Data Rate 10, 100, 1000Mbps with energy detect, auto negotiate, auto MDIX
Optical Data Interface IEEE802.3z 1000Base-Lx/Sx, IEEE802.3u 100Base-Fx
Optical Data Rate 100Mbps or 1000Mbps user selectable
Operating Mode
Ring or non-ring user selectable
Half or full duplex for 10/100
Full duplex for 1000
Pause frames for 1000Mbps flow control
Electrical Data Connectors RJ45
Alarms Ring to Bus
High Temperature
Alarm Interface Optoisolated MOSFET rated at 100mA @ 46V maximum
PoE IEEE802.3af, IEEE802.3at and PoE++
Operating Mode Alternative A & B (Pins 1/2, 3/6, 4/5, and 7/8)
Optical Port Connectors SFP
SFP Options Short haul, long haul, single fiber operation, etc.
Please consult OSD DATASHEET #10021000X or contact OSD
Indicators
2x Copper Link
2x Copper Activity
2x PoE
2x SFP Speed/Activity/Link
1x Initialise/Ring/Bus
1x Power
Dimensions (mm) 43W x 91D x 110H
Weight 0.48kg
Power Requirements 46V to 57V
DC
@ 1.5A Maximum (attached powered device dependant)
≥52VDC recommended for PoE++ or ≥55VDC for 60W
Power Connector 4 way 5.08mm terminal block
Alarm Connector 4 way 3.5mm terminal block
Operating Temperature -20°C to +75°C
Relative Humidity 0 to 95% non-condensing
1022251P07

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1.4 OSD2251P 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 4way
3.5mm terminal block alarm connector.
Bottom Panel: 4-Way DIP switch, Type-A USB connector and a Type-B USB connector.
Each section will be described further throughout this manual.
FIGURE 2: OSD2251P PORT ALLOCATION
Front Panel
Top Panel
Bottom Panel
Alarm Port
Power Port
Configuration Port
Console Port
Program Port
Copper Port 1
Copper Port 2
SFP Port 3
SFP Port 4

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2INSTALLATION AND OPERATION
2.1 INTRODUCTION
This section outlines the methods required to install and operate the OSD2251P 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 60825-1:20011 standard.
Class 1
The OSD2251P 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 OSD2251P DRAWINGS AND DIMENSIONS
The OSD2251P is designed to be wall mounted onto a DIN-Rail (35mm top hat) fixture. The unit
dimensions (excluding connectors, SFPs, etc) is shown in Figure 3 below
FIGURE 3: OSD2251P MOUNTING DIMENSIONS
110mm
43mm
91mm

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2.2.3 LOCATION
As with any electric device, the OSD2251P 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 ℃ (-40 ℉ to 167 ℉ ).
•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 OSD2251P 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 or AC power to the appropriate power source, connect the plug-able terminal
block on the OSD2251P 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 + 46V
DC
to 57V
DC
@ 1.5A max
Power 1 0V Ground – 0V
Power 2 + 46V
DC
to 57V
DC
@ 1.5A max
Power 2 0V Ground – 0V
Earth Ground Connection
FIGURE 4: OSD2251P POWER SUPPLY CONNECTIONS

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2.2.5 OSD2251P ALARM CONNECTION
The OSD2251P 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 OSD2251P 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
N/O Ring Less than 90°C
N/C Bus* Higher than 90°C
*Note: Bus alarm is only triggered after a ring connection is established.
FIGURE 5: ALARM OUTPUTS
FIGURE 6: CONTACT CLOSURE OUTPUT
Alm1
Alm2
OSD2251P

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2.2.6 USB CONNECTOR
The OSD2251P 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 OSD2251P via the PC’s USB connector. See
section 2.5 for further CLI information.
FIGURE 7: USB TYPE B CLI PORT
To operate and control the OSD2251P using the CLI an OSD2251P driver will be required to be
installed onto the PC being used. The driver can be found on the included CD or on the OSD website.
Please contact OSD sales if the driver cannot be found or installed. For Windows XP, Vista and
Windows 7: CP210x_VCP_Win_XP_S2K3_Vista_7.exe. For Windows 2000:
CP210x_VCP_Win2K.exe
USB Type B - CLI Port

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FIGURE 8: WIN XP INSTALLATION

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2.2.7 LED INDICATORS
FIGURE 9: 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 Unmanaged
Mode Ring Initializing Bus

No Activity Activity No Link Active - -

PoE - Non-PoE PoE - -

Link Present - No Link - - On

No Activity Activity No Link 1Gbps - 100Mbps
*In Programming Mode this LED is OFF










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2.2.8 CONTROLS
The OSD2251P has a 4-way DIP switch to control a number of functions. Table 5 outlines the function
of each switch.
FIGURE 10: OSD2251P CONTROLS
FIGURE 11: OSD2251P 4-WAY DIP SWITCH
TABLE 5: OSD2251P 4-WAY DIP SWITCH SETTINGS
SWITCH
NUMBER DESCRIPTION FUNCTION SWITCH POSITION
1 Port 4 Fiber Speed 100Mbps
1000Mbps
ON
OFF*
2 Port 3 Fiber Speed 100Mbps
1000Mbps
ON
OFF*
3 Ring/Unmanaged
Mode
Unmanaged Switch
Ring Mode
ON
OFF*
4 Reserved Programming Mode
User Mode
ON
OFF*
* Default settings. SW4 switch should remain in OFF position at all times.
4-Way DIP Switch
ON
OFF
Switch
1 2 3 4

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2.2.9 FITTING SFP CONNECTORS
Care should be taken when inserting/removing the SFP connectors from SFP port 3 and 4as 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 12: FITTING/REMOVING SFP CONNECTORS
Inserting
SFP
Removing
SFP
1
2
Inserting
SFP
Removing
SFP
1
2

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2.3 OSD2251P OPERATION
When using the OSD2251P 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 SCfiber cable to fiber SFP modules.
Redundant Ring Operation
The OSD2251P connected in a redundant ring topology providing maximum reliability on critical
networks. 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 13: REDUNDANT RING CONFIGURATION

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To connect the OSD2251P 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 14 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 OSD2251P 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 14: REDUNDANT RING CONNECTION
Bus Operation
To connect the OSD2251P 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 15: BUS CONNECTION
Connect more OSD2251P units as required using this topology
Connect more OSD2251P units as required using this topology

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2.4 TYPE-A USB PORT
The Type-A USB Port is used for uploading firmware updates. All OSD2251P units will be shipped
with the latest firmware already installed. This port has no function for end user.
FIGURE 16: OSD2251P USB CONNECTOR
Type-A USB Port