SR2208P Switch Hardware User Guide

Safety Guidelines

The information in this section applies to all Extreme Networks switch models.

The following safety icons identify the type of precaution:

	This icon indicates a general caution. Failure to comply with a caution notification can result in damage to equipment.
	This icon indicates an electrical caution. Failure to comply with an electrical notification can result in serious injury or death, and extensive damage to equipment.
	This icon indicates a laser caution. Failure to comply with a laser caution can result in serious injury.
The following safety precautions apply to the installation of Extreme Networks switches.
	Do not install the device in an environment where the operating ambient temperature might exceed the recommended ranges.
	Changes or modifications made to this device that are not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	The procedures in this manual are for qualified service personnel.
	The switch must be connected only to PoE networks without routing to the outside plant.
	Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs when electronic components are improperly handled and can result in complete or intermittent failures. Be sure to follow ESD-prevention procedures when handling electronic components.
	Disconnect the power cord from all power sources to completely remove power from the device.
	If the installation requires a different power cord than the one supplied with the device, make sure you use a power cord displaying the mark of the safety agency that defines the regulations for power cords in your country. The mark is your assurance that the power cord can be used safely with the device.
	All fiber optic interfaces contain Class 1 lasers. Invisible laser radiation can also be emitted from disconnected fibers. Never look into the end of a fiber, regardless of whether it is active or disconnected.
	The optical transceivers used in the SFP port must be laser Class 1 components (under CDRH definition), compliant with IEC/EN60825.

Install the SR2208P

Apply the self-adhesive rubber feet to the bottom of the SR2208P switch and Install it on a clean level desktop or surface, or mount it on a wall using the mounting hardware that ships with the device.

Note

Follow the safety guidelines in "Safety Guidelines" to ensure the safety of personnel and equipment.

Shipping Carton Contents

The SR2208P switch shipping carton contains the following items:

• SR2208P chassis
• AC power adapter and power cable
• RJ45 console cable
• Four self-adhesive rubber feet
• Generic QuickStart Guide
• Hardware accessory kit containing power cord retainer clip, 2 wall anchors, and 2 Torx wall-mount screws.
• Adequate ventilation is critical for switch operation. Install your devices in a properly ventilated area leaving 2" (5 cm) of clear space at the sides of the chassis to prevent overheating.

Mount the SR2208P on a Wall

To mount the SR2208P switch on a wall, first drill four holes in the wall 3.75" (9.5 cm) apart, center-to-center, and parallel to the floor or ceiling. Install the wall mount screws and wall anchors. Slip the large openings on the back of the switch over the heads of the wall mount screws, and slide the switch down until it is secure on the wall.

Note

You can also mount the SR2208P in a standard equipment rack using the Extreme Networks accessory kit AH-ACC-SR-RM-ASM3.

Secure the Power Cord

Use the power cord to connect the switch to the AC adapter, and then connect the AC adapter to a standard AC power source. Use the retainer clip to secure the power cord to the switch connector. This is especially helpful for wall installations, where gravity can dislodge the connector.

1. Insert the ends of the retainer clip into the holes on the tabs.
2. Insert power cord connector.
3. Rotate clip until it clicks into place over the power cord connector.

Hardware Components

You can see the hardware components for the SR2208P switch in the illustration below, and read about them in the descriptions that follow.

Hardware Component Descriptions

The following sections describe the hardware components for the SR2208P switch.

Reset Button

The Reset button allows you to reboot the device or reinstate the default factory settings. To reboot the device and retain the startup config file, hold the button down between 1 and 5 seconds. To return the configuration to the default settings, hold the button down for 5 seconds or longer. When you release the button, the System LED goes dark as the system reboots, then turns amber while the firmware loads and the system performs a self-test. After the firmware has finished loading and the switch has connected to ExtremeCloud IQ, the device System LED glows steady green.

Ethernet Ports

Eight 10/100/1000-Mbps RJ45 Ethernet ports act as LAN interfaces, are compatible with 10/100/1000Base-T/TX, and automatically negotiate half-and full-duplex connections with the connecting device. The ports are auto-sensing and adjust to straight-through and crossover Ethernet cables automatically. All 8 ports support 124 W PoE capability for powered devices, such as VoIP phones, wireless access points, and network cameras. These ports are IEEE802.3af and IEEE802.3at PSE (power sourcing equipment) compliant, as described here:

• 802.3af PoE provides up to 12.95 W of DC power to each device (this rate reflects normal power loss through the cables). 802.3af meets the power demands of PoE Class 0, 1, 2, and 3 devices.
• 802.3at PoE (also referred to as PoE+) provides up to 25.5 W of DC power to each device (this rate reflects normal power loss through the cables). 802.3at meets the power demands of PoE Class 4 devices.

802.3af is the default setting for all ports, but you can configure up to four ports for 802.3at to support devices that require more power. When four ports are configured for 802.3at, the remaining four PoE ports are shut down to maintain the 802.3at power budget (these ports will still function as standard Ethernet ports).

To change the power setting, first add 803.2af and 802.3at PSE profiles to your network policy in ExtremeCloud IQ and assign them to ports as needed using the device template in your network policy. You can change the profile at any time.

The Ethernet port pin assignments use the TIA/EIA-568-B standard. The ports accept standard Cat3, Cat5, Cat5e, or Cat6 Ethernet cable, and autosensing capabilities allow the wiring termination in the Ethernet cable to be either straight-through or crossover.

For more information about how to manage PSE power, see "PoE Power Management".

Combo Uplink Ports

Two combo 1 Gb uplink ports accommodate any combination of copper or fiber SFP modules (up to 1 Gbps) for additional uplink capacity. SFP modules can be used to connect a broadband modem or other uplink device (such as a router, switch, or hub). SFP ports are typically used for capacity planning and to leverage the higher network bandwidth capabilities and speeds typically offered by SFP modules. You can order SFP modules from Extreme Networks, or purchase your own modules. For more information contact your Extreme Networks representative. For information about installing, replacing, and cleaning SFP modules, see "Working with SFP Modules".

Console port:

Use the RJ45 Console port to make a serial connection to the switch to access the CLI. The management station from which you connect to the device must have a VT100 emulation program, such as Tera Term Pro© (a free terminal emulator) or Hilgraeve Hyperterminal® (provided with Windows® operating systems from Windows 95 to Windows XP). The serial connection settings are: 9600 bits per second, 8 data bits, no parity, 1 stop bit, and no flow control. For Console port pin assignments see Extreme Device Pin Assignments.

Power Connector

Use the power cord to connect the switch to the AC power adapter, and connect the AC power adapter to a standard AC power source. Because the switch does not have an on/off switch, it automatically powers on when you connect it to a power source. A retention clip ships with the switch that you can use to secure the power cord to the back of the device.

LEDs

The LEDs display operational information about the switch. The SR2208P front panel contains the following LEDs:

Power LED:

• Off: No power
• Solid green: Power is on

System LED:

• Solid green: System is up and ready
• Solid green (and all port LEDs are also solid green): System is in u-boot mode.
• Blinking green: Device is performing a power-on-self-test. If this LED is off, and power is on, a fault has been detected.

PoE MAX LED:

• Solid amber: The switch is providing 80% or more of the PoE power budget
• Off: The switch is providing less than 80% of the PoE power budget

Port Link Status LEDs (top left LED above port):

• Solid green: A link is detected on the port
• Blinking green: Traffic is being transmitted or received over the port
• Off indicates: No link detected

Port PoE Status LED (top right LED above port):

• Solid green: 802.3af/at powered device detected
• Off: No powered device detected

Combo Uplink Port Link Status LED (one per physical port):

• Solid green: A link is detected.
• Blinking green: Traffic is being transmitted or received over the port.
• Off: No link detected on the port.

PoE Power Management

The switch supports static and dynamic PoE power management:

• Static: Using static power management, the maximum power delivered by each port is determined by the power threshold (802.3af or 802.3at) that is configured on that port. If more power is required than the ports can deliver, the switch shuts down lower priority ports and transfers their power allotment to higher priority ports.
• Dynamic (default): Using dynamic power management, the switch measures the power consumption of each port in real time. If the power requirements exceed the PSE budget, the switch shuts down lower priority ports and transfers the power allotments to higher priority ports until the budget is met.

The combined amount of power delivered by all ports cannot exceed the PSE power budget.

To change the power management setting in ExtremeCloud IQ, go to Manage > Devices. Select the check box for the switch, select Dynamic or Static from the Power Management Type drop-down box in Optional Settings > PSE Settings, and then select Save.

Port Priority

By default, all ports have priority enabled, with a priority setting of low. There are three port priorities: low, high, and critical.

If there is no priority setting applied to a port or if multiple ports have the same priority, the switch gives the port with the lowest number the higher priority.

Port priorities are assigned and changed using the PSE port profiles that you create in ExtremeCloud IQ. Add PSE profiles for low, high, and critical in your network policy in ExtremeCloud IQ. You can change the priority for a port by changing its PSE profile.

Working with SFP Modules

Install or Replace an SFP Module

You can install or replace SFP modules in the switch while it is powered and running. When you are working with SFP modules, especially fiber modules, be aware of the following safety precautions:

	All fiber optic interfaces contain Class 1 lasers. Invisible laser radiation can also be emitted from disconnected fibers. Never look into the end of a fiber, regardless of whether it is active or disconnected.
	Keep the chassis area clean and dust-free during and after installation.
	Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs when electronic components are improperly handled and can result in complete or intermittent failures. Be sure to follow ESD-prevention procedures when installing SFP modules. Wear an ESD wrist strap with a series 1 Megohm resistor and attach the clip end of the strap to a metal surface (such as an equipment rack) to act as ground.

Follow these steps to install an SFP module:

1. Remove the module from its protective packaging.
2. While wearing an ESD wrist strap, insert the module into an uplink port until it clicks into place. Modules are keyed to prevent incorrect installation.
3. If you are not using the module, leave the protective cover in place. To remove a module, lift the bail handle on the front of the module and pull gently on the module until it disengages from the port.

Note

Always leave the protective cap in place on an SFP module when you are not using it to prevent dust from collecting on the connectors.

Cable an SFP Module

To connect a cable to an SFP module, perform the following steps:

Note

Always clean cable and port connectors before cabling an SFP module. See "Cleaning Fiber Ports and Connectors" for information about how to clean fiber modules.

1. Remove the cover from the SFP module and store it in a resealable container to prevent the transfer of dust to the module. Keep the resealable containers near the connectors for easy access.
2. Gently insert the cable connectors (a tab on each connector should face upward) into the module until the tabs lock into place.
3. Check the LEDs to determine that the connections are working properly.

Clean Fiber Ports and Connectors

To avoid problems with fiber optic connections, it is important to clean both cable and port connectors each time you connect or disconnect them. Dust accumulates easily in connectors and can cause connection problems.

Use a dry (recommended) or wet cleaning process to clean connectors using either lint-free wipes or lint-free swabs. Lightly wipe the connectors to clean them. Never reuse a wipe or swab. If possible, inspect the connectors with a fiber scope to check that they are properly clean.

If you use a wet cleaning process, use only 99% isopropyl alcohol. Make sure that all alcohol is wiped away from all surfaces (do not allow it to evaporate slowly) and has not collected in crevices of cavities. Alcohol residue can contaminate connectors and it is difficult to remove all traces of it. For this reason, a dry cleaning process is preferable.

Hardware Specifications

The following specifications describe the hardware components, electrical requirements, and environmental ranges in which the SR2208P can operate.

Device and Enclosure Specifications

• Chassis dimensions: 10.98” W x 6.69" D x 1.73” H (27.9 cm W x 17.9 cm D x 4.4 cm H)
• Chassis weight: 2 lb, 16 oz (1.1 kg)
• Eight IEEE 802.3 (10BASE-T), IEEE 802.3u (100BASE-TX), and IEEE 802.3ab (1000BASE-T) compliant 10/100/1000 Mbps RJ45 Ethernet ports
• Two combo copper/fiber 1 Gbps SFP uplink ports

Power Specifications

• Input power: 100 - 240 AC, 2.0A, power adapter: 54 V DC, 2.78A
• PoE power:

Environmental Specifications

• Operating temperature: 32° to 104° F (0 to 40° C)
• Storage temperature: -13° to 158° F (-25 to 70° C)
• Operating humidity: 5% to 95% (non-condensing)
• Storage humidity: 5% to 95% (non-condensing)
• Altitude (operating and storage): 10,000 ft (3000 m)

Regulatory Compliance

The following statement applies to SR2208P devices:

この装置は、クラスA情報技術装置です。この装置を家庭環境で使用すると電波妨害を引き起こすことがあります。この場合には使用者が適切な対策を講ずるよう要求されることがあります。 VCCI-A