4 OmniSwitch Backup Power

Shelf/System (BPS)

The OmniSwitch Backup Power Shelf/System (BPS) is a stackable power shelf that provides primary and backup system and PoE power to stacks of up to eight OS6850E switches.

A maximum of two system power supplies and three POE power supplies can be installed in a single

OS-BPS chassis. If two or more like power supplies are installed, each will share the power load.

OS-BPS Chassis Rear

OmniSwitch Backup Power Shelf/System (BPS)

January 2013

OS-BPS Chassis Front

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Chassis Details OmniSwitch Backup Power Shelf/System (BPS)

Chassis Details

OmniSwitch Backup Power Shelf/System (BPS) Front Panel

A B C D E

F

Item

A - C

D and E

F

Description

PoE Power Supply Bays

System Power Supply Bays

Removable Mounting Plate

OmniSwitch Backup Power Shelf/System (BPS) Rear Panel

A B

C1

C B

C3

C B

C5

C B

C8

C7

D

C2 C4 C6 C8

OmniSwitch BPS

OK

C2 C4 C6

Item

A

B

C

D

Description

Chassis Grounding Lug

DB25 Power Connectors (providing system and PoE power to OS6850E switches)

Power Cord Connectors for PoE Power Supplies

Chassis LEDs

Supported Platforms

The OmniSwitch BPS supports OS6850E-24, OS6850E-P24, OS6850E-24X, OS6850E-P24X,

OS6850E-48, OS6850E-P48, OS6850E-48X and OS6850E-P48X switches.

Note. Please note that OS6850E-U24X models are not supported. Also, earlier OS6850 Series switches are not supported and will not operate when connected to an OS-BPS chassis.

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January 2013

OmniSwitch Backup Power Shelf/System (BPS) Specifications

Specifications

OmniSwitch Backup Power Shelf/System (BPS) Chassis Specifications

Chassis Width (with brackets)

Chassis Width (without brackets)

Chassis Height

Overall Unit Height with Factory-Attached Mounting Plate

1

Overall Chassis Depth

Chassis Weight (empty)

Chassis Weight (fully populated)

2

System Power Supply Bays

PoE Power Supply Bays

Compatible Power Supplies (System Power)

Compatible Power Supplies (PoE Power)

Maximum Power (PoE)

Maximum Power (System)

3

Operating Temperature (Tmra):

Storage Temperature

Humidity (Operating)

Humidity (Non-Operating)

48.2 cm (19 inches)

43.3 cm (17.05 inches)

4.4 cm (1.73 inches or 1RU)

6.67 cm (2.625 inches or 1.5RU)

46.04 cm (18.125 inches)

4.4 kg (9.68 lbs)

12.85 kg (28.34 lbs)

2

3

OS-BPS-S (OS-PS-450W-A)

OS-BPS-P (CP2000AC54TEP-AL)

6000W

900W

0°C to 45°C (32°F to 113°F)

-10°C to +70°C (14°F to 158°F)

5% to 95% non-condensing

5% to 95% non-condensing

1

The OmniSwitch Backup Power Shelf/System (BPS) ships with a factory-attached mounting plate that can be removed onsite to reduce the overall unit height to 1RU.

2

Fully populated weight includes all installable power supplies.

3

900W system power requires two 450W OS-BPS-S power supplies to be installed and operating in the

OS-BPS chassis.

*Note On Chassis Versus Ambient Temperatures. Chassis temperature refers to the sensor reading of the internal chassis temperature (threshold or danger). Ambient temperature refers to the temperature of the room and are approximations. The ambient temperature will be less than the chassis temperature and will vary for each model due to different airflow characteristics.

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Chassis Status LEDs OmniSwitch Backup Power Shelf/System (BPS)

Power Supply Redundancy

Power supplies installed in the same OS-BPS chassis may operate in a redundant or backup configuration by sharing the same electrical load with another power supply.

Hot Swapping

OS-BPS power supplies are hot swappable. If redundant power supplies are operating in the chassis, a power supply can be removed or replaced without adversely affecting normal operation. New power supplies may be inserted in empty power supply slots at any time.

Considerations if OS-BPS is the Only Power Source In a Stack

If the primary power supply fails on any switch connected to the OS-BPS, leaving the OS-BPS as the switch's only power source, it is recommended that the primary power supply is replaced on the switch as soon as possible.

If the primary power supply fails on any PoE-enabled switch connected to the OS-BPS and the switch must be powered down, the PoE power must first be disabled on the switch using the lanpower stop CLI command before disconnecting the DB25 connector between the OS-BPS and the switch.

Chassis Status LEDs

The chassis provides a series of status LEDs located on the front panel. These LEDs offer basic status information for hardware operation and port link and activity status.

LED

OK

C1 - C8

ECO LED

State

Solid Green

Blinking Amber

Solid Green

Solid Amber

TBD

Description

Operational

In transitional state (e.g. performing diagnostics or booting)

Both power supplies are functional

One power supply is functional

TBD page 4-4 OmniSwitch Backup Power Shelf/System (BPS)

January 2013

OmniSwitch Backup Power Shelf/System (BPS) Chassis Status LEDs

OS-BPS Connector Priority

If the total available PoE or system power drops below the minimum budget required for the current configuration, the OS-BPS automatically powers off switches according to priority until the configuration falls within the available power budget.

If the total available PoE or system power later increases to meet the power demands of the configuration, the OS-BPS returns power to those switches based on priority.

Connector priority for all OS-BPS connectors is user configurable. This allows the user to specify which switches will remain operational in the event of a power budget shortfall.

By default, connector 1 receives the highest priority and connector 8 receives the lowest priority.

Additional default priorities are specified below.

Connector

Default Priority

1

8

2

7

3

6

4

5

5

4

6

3

7

2

8

1

Note. The higher the numerical priority value, the higher the connector priority.

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Mounting the Chassis OmniSwitch Backup Power Shelf/System (BPS)

Mounting the Chassis

General Mounting Recommendations

Elevated Operating Ambient Temperature. If installed in a closed or multi-rack assembly, the operating ambient temperature of the rack environment may be greater than the room’s ambient temperature.

Therefore, consideration should be given to the maximum rated ambient temperature (Tmra) specified on

page 4-3 .

Reduced Air Flow. Installation of the equipment in a rack should be such that the amount of air flow

required for safe operation of the equipment is not compromised. Refer to “Airflow Recommendations” on page 4-6 for more information.

Mechanical Loading. Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven loading.

Circuit Overloading. Consideration should be give to the connection of the equipment to the supply circuit and the effect that overloading of circuits could have on overcurrent protection and supply wiring.

Reliable Earthing. Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch (e.g., use of power strips).

Airflow Recommendations

To ensure proper airflow, the OS-BPS should be placed in a well-ventilated area with minimum recommended clearance at front, back and sides of the chassis. (Clearance is not required at the top and bottom of the chassis.) Restricted airflow can cause the chassis to overheat, which can lead to system failure. Refer to the following important guidelines regarding airflow:

}

Rear. 6 inches minimum at rear of chassis.

Sides. 2 inches minimum at left and right sides.

}

Front. 6 inches minimum at front of chassis.

Chassis Top View

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OmniSwitch Backup Power Shelf/System (BPS) Mounting the Chassis

OmniSwitch BPS Airflow

The OmniSwitch Backup Power Shelf/System (BPS) power supplies are installed in power supply bays located at the front of the chassis. Each power supply draws air through intake vents at the front of the power supply. The air is then directed straight through each power supply and out the rear chassis vent.

OmniSwitch BPS Airflow

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Mounting the Chassis OmniSwitch Backup Power Shelf/System (BPS)

Blank Cover Panels

Blank cover panels are provided with your chassis and are used to cover empty slots. These cover panels play an important role in chassis airflow and temperature management. If your chassis is not fully populated and blank cover panels are not installed over empty slot locations, airflow is affected.

When blank cover panels are missing, air does not take the direct route from the power supply air intake vents, through the power supply body, and out through the chassis exhaust vent as intended. Instead, a portion of the airflow is allowed to escape through other openings in the chassis. As a result, normal airflow is disrupted and an extra task is placed on the system to cool the chassis.

Note. Because they regulate airflow and help protect internal chassis components, blank cover panels should be installed over empty power supply bays at all times.

page 4-8

Blank Panels and Chassis Airflow

OmniSwitch Backup Power Shelf/System (BPS)

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OmniSwitch Backup Power Shelf/System (BPS) Rack-Mounting

Rack-Mounting

Refer to the following important guidelines before installing the chassis in a rack:

•

Two people are required to rack mount the chassis: One person to lift the chassis into position and one person to secure the chassis to the rack using the rack mount screws.

•

•

•

The chassis has rack-mount flanges that support standard 19-inch rack mount installations.

Alcatel-Lucent does not provide rack-mount screws. Use the screws supplied by the rack vendor.

To prevent a rack from becoming top heavy, it is recommended that you install the chassis at the bottom of the rack whenever possible.

•

If you are installing the chassis in a relay rack, be sure to install and secure the rack per rack manufacturer’s specifications.

Note. Never rack mount the chassis using only the front-installed rack mount flanges. Due to the chassis depth and overall weight, it must be mounted using front and rear flanges (as described below) or by attaching flanges to the mid portion of the chassis (see “Mid-Mounting the Chassis In the Rack” on page

4-10). Failure to properly mount the chassis may result in the chassis sagging in the rack or damage to the chassis and its components.

To rack mount the chassis, follow the steps below.

1 Mark the holes on the rack where the chassis is to be installed.

2

One person should lift and position the chassis until the rack-mount flanges are flush with the rack post.

3 Align the holes in the flanges with the rack holes marked in step 1.

4

Once the holes are aligned, the second person should insert a screw through the bottom hole on each flange. Tighten both screws until they are secure.

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Rack-Mounting OmniSwitch Backup Power Shelf/System (BPS)

5

Insert the remaining rack-mount screws through the empty holes in the flange and tighten.

6

Next, secure the back of the chassis to the rear rack posts. With the flanges facing out, insert the slidein braces into the slot rails until they meet the rear rack posts.

Note. The chassis installation should be level. Be sure that the rear flanges are aligned with the corresponding holes at the front of the rack.

7 Insert rack mount screws through the rear rack mount flanges and tighten.

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OmniSwitch Backup Power Shelf/System (BPS) Rack-Mounting

Mid-Mounting the Chassis In the Rack

The chassis may also be installed in the rack using mid-mount flanges. To mid-mount the chassis in a rack, follow the steps below.

1

If applicable, remove the factory-installed front mounting plate and slot rails from the side of the chassis by loosening and removing the attachment screws.

Remove

Remove

Remove

2

Install the individual mounting brackets at the midpoint of the chassis using the four threaded holes on each side.

3 Mark the holes on the rack where the chassis is to be installed.

4

One person should lift and position the chassis until the mid-mount flanges are flush with the rack post.

5 Align the holes in the flanges with the rack holes marked in step 3.

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Rack-Mounting OmniSwitch Backup Power Shelf/System (BPS)

6

Once the holes are aligned, the second person should insert a screw through the bottom hole on each flange. Tighten both screws until they are secure.

7

Once the flanges are aligned, install the remaining screws. Be sure that all screws are securely tightened.

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OmniSwitch Backup Power Shelf/System (BPS) Power Supplies

Power Supplies

OmniSwitch Backup Power Shelf/System (BPS) power supplies are located at the front of the chassis.

Refer to page 4-2 for more information on component locations. Two system power supply bays and three

PoE power supply bays are provided.

Note. For PoE installations, a minimum of one system power supply and one PoE power supply are required to power up a single OS-BPS.

Please note that the power supplies do not provide an on/off switch. Connecting an installed power supply to a power source will power on the power supply. Likewise, disconnecting all installed power supplies from a power source will power off the chassis.

AC Power Supply

Status LED

Lock Tab

Air Vent

Handle

AC Connector

Model

Input Voltage Range

Nominal Voltage

Max. Power

Input Current

Output Rating

Operating Temperature

Storage Temperature

Humidity (Operating)

Humidity (Non-Operating)

Airflow

AC Power Supply Front Panel

OS-BPS-S (OS-PS-450W-A)

100-240VAC, 50-60Hz

115 VAC; 230 VAC

450W

8A (100-132V); 4A (180-264V)

12V@37A

0°C to 50°C

-40°C to +70°C

5% to 95% non-condensing

5% to 95% non-condensing

This power supply provides front-to-back airflow only for

OS-BPS applications. See “Airflow Recommendations” on page 4-6

for more information.

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Power Supplies OmniSwitch Backup Power Shelf/System (BPS)

AC Power Supply LED States

LED State

Solid Green

Flashing Green

Flashing Red

Flashing Green/Red

Solid Red

Off

Description

The power supply is operating normally and providing power to the chassis

The power supply is on standby and can provide power to the chassis if power supply failover should occur

No AC power is being provided to this power supply

Power supply warning

Power supply failure

No AC power is being provided to any power supply installed in the chassis; all power supplies are effectively off page 4-14 OmniSwitch Backup Power Shelf/System (BPS)

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OmniSwitch Backup Power Shelf/System (BPS)

OmniSwitch BPS PoE Power Supply

Power Supplies

Model

Input Voltage Range

Nominal Voltage

Max. Power

Input Current

Output Rating

Operating Temperature

Storage Temperature

Humidity (Operating)

Humidity (Non-Operating)

Airflow

Update - PoE Power Supply Front Panel

OS-BPS-P (CP2000AC54TEP-AL)

100-132VAC; 180-264VAC

115 VAC; 230 VAC

1200W (115 VAC); 2000W (230 VAC)

15 (100VAC); 12 (120VAC); 11 (200-240VAC)

54.5V@A

-5°C to 50°C

-40°C to +85°C

5% to 95% non-condensing

5% to 95% non-condensing

This power supply provides front-to-back airflow only.

See “Airflow Recommendations” on page 4-6

for more information.

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Power Supplies OmniSwitch Backup Power Shelf/System (BPS)

OmniSwitch BPS PoE Power Supply LED States

LED Description

On: Input OK

Blinking: Input out of limits

On: Output OK

Blinking: Power supply overload

On: Over-temp warning

Blinking: Service

ON: Fault page 4-16 OmniSwitch Backup Power Shelf/System (BPS)

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OmniSwitch Backup Power Shelf/System (BPS) OmniSwitch BPS Power Connections

OmniSwitch BPS Power Connections

Connecting the OmniSwitch BPS to OS6850E Switches

System and PoE power are provided to each OS6850E through a single one meter DB25 connector cable.

Up to eight switches may be connected to the OmniSwitch BPS chassis. To connect a switch to the

OS-BPS chassis, follow the steps below.

1

Attach one end of the cable to the DB25 connector on the rear of the OS-BPS.

2 Next, attach the other end of the cable to the DB25 connector on the rear of the switch chassis.

Note. When connecting stacked switches to the OS-BPS, note that the switch connected to connector port

“C1” will have the highest power budget priority; the switch connected to connector port “C2” will have the next highest priority, etc. For additional information, refer to

“OS-BPS Connector Priority” on page 4-5 for more information.

OS6850E DB25 Connector

OmniSwitch BPS DB25 Connector

1 Meter Connector Cable

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OmniSwitch BPS Power Connections OmniSwitch Backup Power Shelf/System (BPS)

Installing and Connecting System Power

1 Orient the power supply so that the power cord socket is situated at the right of the power supply. Also, for the power supply to seat properly, make sure that the handle is in the vertical position.

2

Slide the power supply back until it is securely seated in the chassis backplane.When the connector is fully seated, the lock tab will click and hold the power supply in place.

3

Plug the power cord (provided) into the power supply’s socket.

Note. The chassis does not provide an on/off switch. Connecting a minimum of one system power supply and one PoE power supply to a power source will power on the OS-BPS chassis and any attached switches.

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OmniSwitch Backup Power Shelf/System (BPS) OmniSwitch BPS Power Connections

Installing PoE Power Supplies

1 Orient the power supply so that the lever locking tab is situated at the right of the power supply with the lever open.

2 Slide the power supply back until the left side of the lever catches the sheet metal tab at the inside top of the chassis. Gently close the lever until it locks into place securing the power supply into the chassis.

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OmniSwitch BPS Power Connections OmniSwitch Backup Power Shelf/System (BPS)

Connecting PoE Power

1 Insert the power cord connector into the socket at the rear of the chassis.

2

Use the retainer clip to secure the power cord to the connector.

Note. The chassis does not provide an on/off switch. Connecting a minimum of one system power supply and one PoE power supply to a power source will power on the OS-BPS chassis and any attached switches.

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OmniSwitch Backup Power Shelf/System (BPS) Grounding the Chassis

Grounding the Chassis

The chassis has a grounding lug located on the rear of the chassis. This lug uses 10-32 screws and is surrounded by a small paint-free area, which provides metal-to-metal contact for a ground connection.

Use this connector to supplement the ground provided by the AC power cord. To do so, install a Panduit

Grounding Lug (type LCD8-10A-L) using 8AWG copper conductors to the paint-free area.

Additionally, ensure that all AC sources used to power the OS-BPS and the OmniSwitches share a common electrical ground. The “Earth Ground” for all AC sources must be a solid common ground that does not have any electrical potential (voltage) between them.

Refer to the rear chassis views on

page 4-2

for location details.

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Disconnecting a Chassis from the OS-BPS OmniSwitch Backup Power Shelf/System (BPS)

Disconnecting a Chassis from the OS-BPS

When disconnecting an OS6850E switch from the OS-BPS, first disconnect the DB25 connector cable between the OS-BPS and the switch, then disconnect the primary power supply for the

OS6850E.

Note. If the primary power supply fails on any PoE-enabled switch connected to the OS-BPS and the switch must be powered down, the PoE power must first be disabled on the switch using the lanpower stop CLI command before disconnecting the DB25 connector between the OS-BPS and the switch.

Removing System Power Supplies

1 When removing a power supply, first disconnect the power cord from the power source. Once the power cord is disconnected, pull the power cord out of the power supply housing.

2

Pressing the lock tab toward the right, as shown, will free the power supply from the chassis. While pressing the lock tab, pull the power supply straight back and out of the chassis slot.

Lock Tab

Note. If you are not replacing the power supply, be sure to install a blank cover panel over the empty power supply bay.

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OmniSwitch Backup Power Shelf/System (BPS) Disconnecting a Chassis from the OS-BPS

Removing PoE Power Cords from the OS-BPS Chassis

1 Swing the retainer clip away from the power cord connector.

2 Pull the cord straight out of the connector socket.

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Disconnecting a Chassis from the OS-BPS OmniSwitch Backup Power Shelf/System (BPS)

Removing PoE Power Supplies

1 When removing a power supply, first disconnect the power cord from the power source. Once the power cord is disconnected, pull the power cord out of the power supply housing.

2

Pressing the lock tab toward the right, as shown, will free the lever. Pull the lever to release the power supply from chassis, pull the power supply straight back and out of the chassis slot.

Lock Tab

Note. If you are not replacing the power supply, be sure to install a blank cover panel over the empty power supply bay.

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OmniSwitch Backup Power Shelf/System (BPS) Monitoring OmniSwitch BPS Components

Monitoring OmniSwitch BPS Components

The following commands have been added or modified for OmniSwitch BPS support on OS6850E switches.

Viewing General Power Supply Information

To display all system power supplies, including those installed in the OmniSwitch BPS chassis, enter the following command:

-> show power supply

To display only power supplies currently installed in the OmniSwitch BPS chassis, enter the following command:

-> show power supply bps

To display the connector priority for power supplies currently installed in the OmniSwitch BPS chassis, enter the following command:

-> show power bps connector-priority

Note. For more detailed information on these commands, as well as OmniSwitch BPS configuration commands, refer to the OmniSwitch CLI Reference Guide.

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OmniSwitch BPS Operation OmniSwitch Backup Power Shelf/System (BPS)

OmniSwitch BPS Operation

The amount of power supplied by the OS-BPS depends on the number of system and/or PoE power supplies installed as noted in the table below:

1 System P/S (450W)

2 System P/S (900W)

1 PoE P/S

2 PoE P/S

3 PoE P/S

Can support up to 4 OS6850E primary power supply failures.

Can support up to 8 OS6850E primary power supply failures.

Can support up to1200W (low line) or 2000W (high line) of PoE power.

Can support up to 2400W (low line) or 4000W (high line) of PoE power.

Can support up to 3600W (low line) or 6000W (high line) of PoE power.

Single Mode (N+1)

When configured in single mode the OS-BPS power is unmanaged, meaning all the installed system power supplies act as a single redundant system power supply and all the installed PoE power supplies act a single redundant PoE power supply to provide backup power. There is no priority given to any connector, the OS-BPS will continue to provide power as long as the amount of power required by the OmniSwitches is less than the total power available on the OS-BPS. The number of OmniSwitch primary power supplies that can fail but still have redundant system power supplied by the OS-BPS depends on the number of OS-

BPS system power supplies installed. PoE coverage is dependent on PoE power usage. Multiple power failovers will only be supported for PoE if the total current draw is less than available PoE power on the

OS-BPS.

Full Mode (N+N)

When configured in full mode the OS-BPS power is managed, meaning if the power requirements of the switches becomes greater than what the OS-BPS can provide, the OS-BPS will manage the power and begin to shut down power based on connector priority. For additional information on connector priority refer to

“OS-BPS Connector Priority” on page 4-5

for more information.

Note. Do not change the power mode while the OS-BPS is providing power.

Changing the OS-BPS Mode

To change the mode that the OS-BPS is operating in us the power bps mode command:

-> power bps mode full page 4-26 OmniSwitch Backup Power Shelf/System (BPS)

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OmniSwitch Backup Power Shelf/System (BPS) OmniSwitch BPS Operation

OmniSwitch BPS Configurations

The OmniSwitch BPS can be used to provide redundancy to the OmniSwitch 6850E in multiple configurations as described below:

Supported Configurations

•

Single stack (from 1 to 8 switches)

•

1 to 8 non-stacked switches

•

Two stacks of switches (up to 4 switches each)

Unsupported Configurations

•

Partial stack (only NIs are connected to OmniSwtich BPS, but not the CMM)

•

A mix of stacked and unstacked switches

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OmniSwitch BPS Operation OmniSwitch Backup Power Shelf/System (BPS)

OmniSwitch BPS Scenarios

The tables below describe scenarios that can be seen when using the OS-BPS and what the expected behavior will be based on the mode of the OS-BPS.

System Power Scenarios

System P/S Scenario Single (N+1) Mode Full (N+N) Mode

No System power on OS-

BPS.

No redundant system power available. No redundant system power available.

One system power supply in OS-BPS while primary power supply is in use.

Two system power supplies in OS- BPS while primary power supply is in use.

Removal of a stack element

Up to 4 switches can be supported.

Up to 8 switches can be supported.

No change

Connectors 1-4 will be enabled and ready to provide redundant power.

Connectors 5-8 will be enabled and ready to supply redundant power.

No change

Adding a stack element with OS-BPS in use and one system power supply.

Adding a stack element with OS-BPS in use and two system power supplies.

If 4 or less switches then there is no change. If 5 or more switches then the system power will shut down.

Connectors 1-4 will be enabled, switches connected to 5-8 will not be powered up.

New element powered on. New element powered on.

Power over Ethernet Scenarios

PoE P/S Scenario Single (N+1) Mode

No PoE power available on OS-BPS.

Redundant PoE power will not be available. PoE will drop upon failure of a primary power supply.

A PoE power supply is added to the OS-BPS when the primary power supply is in use.

No immediate change but more PoE power will be available if a primary power supply fails.

A PoE power supply is added when OS-BPS is in use.

No immediate change but more PoE power will be available if a primary power supply fails.

Removal of a stack element

No change

Full (N+N) Mode

Redundant PoE power will not be available. PoE will drop upon failure of a primary power supply.

Amount of managed PoE power available will be increased.

Amount of managed PoE power available will be increased.

Amount of managed PoE power available will be increased.

Addition of a stack element with OS-BPS in use.

If new PoE power requirement is greater than available PoE power then

PoE will be shut down.

Amount of managed PoE power available will be decreased and PoE will be shut down based on connector priority if required.

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