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Oracle® Big Data Appliance Owner's Guide
Release 1 (1.1)
Part Number E36161-06
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B Replacement Units

This appendix lists the replacement units for Oracle Big Data Appliance. All replacement units are field replaceable units (FRUs), which are installed by Oracle field engineers.

This appendix contains the following sections:

B.1 Understanding Repair Categories

Repair categories describe the potential effects of a repair action. Table B-1 describes the categories and related actions.

Table B-1 Oracle Big Data Appliance Repair Categories

Category Description Scenario Examples

Hot Swap (HS)

The repair part is hot swappable and can be replaced without shutting down the host system. Procedures may be needed before and after replacement to protect the data.

  • Disks

  • Fans

  • Power supplies

Infrastructure Repair (IR)

Repair of a connectivity component within an Oracle Big Data Appliance rack. No downtime of the rack is required; however, individual components may require downtime.

  • External cables

  • InfiniBand switch

  • Ethernet switch

  • KVM switch or KMM tray

BDA Server Offline (BDA-O)

Repair of the part requires shutting down one Big Data Appliance server. No downtime of the rack is required; however, individual servers may require downtime and temporary removal from the cluster. Rebalancing the workload and data duplication may temporarily affect performance.

If the system is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  • System boards

  • PCIe cards

  • Memory

  • Processors

B.2 Disk Controller Batteries

The disk controllers in Sun Fire servers have battery-backed write cache to accelerate write performance. If the battery charge capacity degrades such that the battery cannot protect the cached data for a power loss of 48 hours or more, then the write cache is disabled and the disk controller switches to write through mode. This results in reduced write performance but no data loss. Sun Fire servers generate an alert when the battery charge is insufficient, when the temperature is high, and when the battery should be replaced.

Battery charge capacity degrades over time, and the life expectancy of a battery is inversely proportional to the operating temperature. The worst-case life expectancy of a battery in an Oracle Big Data Appliance rack is as follows:

Inlet Ambient Temperature Battery Lifetime
< 25 degrees Celsius (77 degrees Fahrenheit) 3 years
< 32 degrees Celsius (90 degrees Fahrenheit) 2 years

Oracle replaces failed batteries at no extra charge if the battery charge capacity in the disk controllers falls below the minimum threshold. As part of Oracle Premier Support for Systems, Oracle attempts to proactively replace the batteries in an Oracle Big Data Appliance rack before the end of the estimated lifetime, on a best effort basis.

B.3 LED Status Descriptions

This section describes the light-emitting diodes (LEDs) in an Oracle Big Data Appliance rack. It contains these topics:

B.3.1 Sun Fire Server LEDs

Table B-2 describes the LED color codes on Sun Fire X4270 M2 servers.

Table B-2 LED Status Descriptions

Component LED Status

Fan module

  • Fan Status LED is green: The system is powered on and the fan module is functioning correctly.

  • Fan Status LED is amber: The fan module is faulty. The front and rear panel Service Action Required LEDs are also lit if the system detects a fan module fault.

Power supply

  • OK to Remove LED is green: The power supply can be removed safely during a hot-swap procedure.

  • Service Action Required LED is amber: The power supply is faulty. The front and rear panel Service Action Required LEDs are also lit if the system detects a power supply fault.

  • AC Present LED is green: Power supply can be removed during a hot-swap procedure.

Servers

  • OK to Remove LED is blue: A storage drive can safely be removed during a hot-swap procedure.

  • Service Action Required LED is amber: The storage drive is faulty. The front and rear panel Service Action Required LEDs are also lit if the system detects a storage drive fault.

  • OK/Activity LED is green: Data is being read from or written to the storage drive.

B.3.2 Sun Datacenter InfiniBand Switch 36 LEDs

Table B-3 describes the color codes of the LEDs on Sun Datacenter InfiniBand Switch 36 switches.

Table B-3 Sun Datacenter InfiniBand Switch 36 LED Status Descriptions

Component LED Status

Chassis

  • Locator LED is white: It flashes when identifying itself. It is on when there is no function, and off when disabled.

  • Attention LED is amber: There is a fault condition. It flashes when there is no function.

  • OK LED is green: Switch is functioning correctly. It flashes when there is no function.

Link status

  • Link LED is green: It is on when the link is established, it is off when the link is down, and it flashes when there are symbol errors.

Network management ports

Link Speed LED: 

  • Green indicates 1000BASE-T.

  • Amber indicates 100BASE-T.

  • Off indicates no link.

  • Flashing indicates no function.

Activity LED: 

  • Flashing indicates packet activity.

  • On indicates no function.

  • Off indicates no activity.

Power supply

  • OK LED is green: 12 VDC is supplied. Flashing indicates no function.

  • Attention LED is amber: There is a fault, and 12 VDC is shut down. Flashing indicates no function.

  • AC LED is green: AC power is supplied. Flashing indicates no function.

B.4 Parts for Sun Fire Servers

Table B-4 lists the replaceable parts for Sun Fire servers, which are covered under the Oracle Premier Support for Systems warranty.

Note:

Oracle Big Data Appliance ships with two spare drives. If a drive is faulty, then the customer can replace the drive before an Oracle service representative arrives if circumstances warrant immediate action.

Table B-4 Replacement Parts for a Sun Fire X4270 M2 Server

Part Number Description Repair Category Repair Procedure

150-3993

Battery, 3V, 390 MAH, LITH, COIN

BDA-O

See Section 4.6, "Servicing the Server Battery" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_71528

300-2235

Power supply, A249, 1200W, 12V, 2U, RoHS:Y

HS

See Section 3.4, "Servicing Power Supplies" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/hotswap.html#50438178_11706

350-1502

Universal rack mount kit

BDA-O

  1. If the system is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  2. See Chapter 2, "Installing the Server Into a Rack With Slide-Rails" in Sun Fire X4170 M2 and X4270 M2 Servers Installation Guide at

    http://docs.oracle.com/cd/E19245-01/E27205/z4000c671007752.html

371-4743

4 GB USB 2.0 flash drive, RoHS:Y

BDA-O

Not applicable

371-4966

LV DIMM, 8 GB, DDR3, 1RX4, 1333 MHz

BDA-O

See Section 4.2, "Servicing Memory Modules (DIMMs)" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_71526

371-4982

6 Gigabit SAS RAID PCI battery module, RoHS:Y (LION), BBU-08

BDA-O

  1. If the server is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  2. See Sun Storage 6 Gb SAS PCIe HBA, Internal Installation Guide For HBA Models SGX-SAS6-INT-Z and SG-SAS6-INT-Z (internal only) at

    http://docs.oracle.com/cd/E19337-01/index.html

375-3696

InfiniBand (CX2) dual port CX2 4x QDR PCI-e

BDA-O

  1. If the server is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  2. See Section 4.5, "Servicing PCIe Cards" in Sun Fire X4270 M2 Server Service Manual at

    http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_86021

375-3701

6 Gbps SAS RAID disk PCIe HBA, RoHS:Y

BDA-O

  1. If the server is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  2. See Section 4.5, "Servicing PCIe Cards" in Sun Fire X4270 M2 Server Service Manual at

    http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_86021

Note: Do not run any controller commands in the service manual when replacing the disk.

530-3927

Cable, PDB, MB, 1U+2U, ribbon

BDA-O

See Section 5.10, "Servicing Cables " in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_58217

530-4228

Cable, mini-SAS, 36 POS LONG, LY, RoHS:Y

BDA-O

See Section 5.10, "Servicing Cables" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_78806

541-2075

Bus_bar, power, 1U+2U, RoHS:Y

BDA-O

See Section 5.6, "Servicing the Power Distribution Board" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_85936

541-2884

Assembly, riser, X8, X8, 2U, PCI-E, RoHS:Y

BDA-O

See Section 4.4, "Servicing PCIe Risers" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_53252

541-3310

Xeon Heatsink with grease, RoHS:Y, 2U

BDA-O

See Section 4.7, "Servicing CPUs" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_23425

541-3356

x8/x8 switched PCIe riser assembly, RoHS:Y with the following:

  • x8/x8 switch PCIe riser

  • bracket

BDA-O

  1. If the server is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  2. See Section 4.4, "Servicing PCIe Risers" in Sun Fire X4270 M2 Server Service Manual at

    http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_53252

541-4081

System board assembly, RoHS:Y

BDA-O

  1. If the server is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  2. See Section 4.8, "Servicing the Motherboard" in Sun Fire X4270 M2 Server Service Manual at

    http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_98526

541-4124

Fan deck, Hyde, RoHS:Y

BDA-O

See Section 5.3, "Servicing the Fan Board" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_71556

541-4222

Assembly, fan, CR, 2U, RoHS:Y

HS

See Section 3.3, "Servicing Fan Modules" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/hotswap.html#50438178_28930

541-4223

Power distribution board, 2U, RoHS:Y

BDA-O

See Section 5.6, "Servicing the Power Distribution Board" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_71558

541-4304

Indicator, right, Hyde 12/24, RoHS:Y

BDA-O

See Section 5.5, "Servicing the Front Panel LED Modules" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_71563

541-4305

Assembly, disk, SAS2, XP_DC, Hyde, RoHS:Y

BDA-O

See Section 5.2, "Servicing the SAS Expander Board" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_28246

541-4306

Assembly, connector board bracket, Hyde

BDA-O

See Section 5.7, "Servicing the Connector Board" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_pgfId-1296581

541-4363

12-slot disk backplane, RoHS:Y

BDA-O

See Section 5.4, "Servicing the Disk Backplane" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_71557

541-4371

Indicator, left, Hyde 12/24, RoHS:Y

BDA-O

See Section 5.5, "Servicing the Front Panel LED Modules" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/infrastructure_x4270_M2.html#50438167_71563

560-2952

Cable kit, Hyde, RoHS:Y with the following:

  • Disk backplane power cable

  • 24-slot DBP power cable

  • 12/24 slot disk backplane signal cable

  • Fan signal cable

  • Fan power cable

BDA-O

Refer to the entries for the individual items in the kit.

7010036

FRU DR 3 TB 3.5-inch SAS/7200, CORAL

--

See Section 3.2, "Servicing Storage Drives and Boot Drives" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/hotswap.html#50438178_61628

Note: Do not run any controller commands in the service manual when replacing the disk.

7012433

3.06 GHz processor

BDA-O

See Section 4.7, "Servicing CPUs" in Sun Fire X4270 M2 Server Service Manual at

http://docs.oracle.com/cd/E19245-01/821-0488-12/motherboard.html#50438179_23425

B.5 Parts for the Sun Datacenter InfiniBand Switch 36

Table B-5 lists the replaceable parts for the Sun Datacenter InfiniBand Switch 36, which are covered under the Oracle Premier Support for Systems warranty. Unless otherwise noted, the repair procedures reference the Sun Datacenter InfiniBand Switch 36 Service Manual at

http://docs.oracle.com/cd/E26698_01/index.html

See "Cables and Cable Accessories for an Oracle Big Data Appliance Rack" for information about InfiniBand cables.

Table B-5 Replacement Parts for the Sun Datacenter InfiniBand Switch 36

Part Number Description Repair Category Repair Procedure

300-2299

A247A 760 watt power supply, RoHS:Y

HS

See "Servicing Power Supplies" at

http://docs.oracle.com/cd/E26698_01/html/E26434/z40001f49112.html

350-1312

Fan module for Sun Datacenter InfiniBand Switch 36, RoHS:Y

HS

See "Servicing Fans" at

http://docs.oracle.com/cd/E26698_01/html/E26434/z40001f59112.html

371-2210

CR2032 3V battery, RoHS:Y

IR

See "Servicing the Battery" at

http://docs.oracle.com/cd/E26698_01/html/E26434/z40001f79112.html

541-3495

Sun Datacenter InfiniBand Switch 36, RoHS:YL

IR

  1. See "Replacing a Failed InfiniBand Switch."

  2. See "Installing the Switch" in the Sun Datacenter InfiniBand Switch 36 Installation Guide at

    http://docs.oracle.com/cd/E26698_01/html/E26434/cggfbhhf.html

594-6603

10 Gbps QSFP short wavelength transceiver

IR

See "Servicing Data Cables" at

http://docs.oracle.com/cd/E26698_01/html/E26434/z40001f69112.html

B.6 Parts for the Sun Network QDR InfiniBand Gateway Switches

Table B-6 lists the replaceable parts for the Sun Network QDR InfiniBand Gateway Switch, which are covered under the Oracle Premier Support for Systems warranty. Unless otherwise noted, the repair procedures refer to the Sun Network QDR InfiniBand Gateway Switch Service Manual at

http://docs.oracle.com/cd/E26699_01/index.html

See "Cables and Cable Accessories for an Oracle Big Data Appliance Rack" for information about InfiniBand cables.

Table B-6 Replacement Parts for the Sun Network QDR InfiniBand Gateway Switch

Part Number Description Repair Category Repair Procedure

300-2299

760 watt power supply, RoHS:Y

HS

See "Servicing Power Supplies" at

http://docs.oracle.com/cd/E26699_01/html/E26706/z40001f49112.html

350-1312

Fan module, RoHS:Y

HS

See "Servicing Fans" at

http://docs.oracle.com/cd/E26699_01/html/E26706/z40001f59112.html

371-2210

CR2032 3V battery, RoHS:Y

IR

See "Servicing the Battery" at

http://docs.oracle.com/cd/E26699_01/html/E26706/z40001f79112.html

594-6603

10 Gbps QSFP short wavelength transceiver

IR

See "Servicing Data Cables" at

http://docs.oracle.com/cd/E26699_01/html/E26706/z40001f69112.html

7014378

Assembly, system, NM2-Gateway

IR

  1. See "Replacing a Failed InfiniBand Switch."

  2. See "Installing the Gateway" in the Sun Network QDR InfiniBand Gateway Switch Installation Guide at

    http://docs.oracle.com/cd/E26699_01/html/E26706/cggfbhhf.html

B.7 Parts for the Cisco Ethernet Switch

Table B-7 lists replaceable parts for the Cisco Ethernet switch, which are covered under the Oracle Premier Support for Systems warranty.

See Also:

Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide at

http://www.cisco.com/en/US/docs/switches/lan/catalyst4900/4948E/installation/guide/4948E_ins.html

Table B-7 Replacement Parts for Cisco Catalyst Ethernet Switch

Part Number Description Repair Category Repair

7055121

Cooling fan

HS

See Chapter 4 of Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

7055122

Cisco Catalyst 4948 switch, RoHS:Y

IR

See Chapter 3 of Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

7055123

Power supply

HS

See Chapter 4 of Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

B.8 Parts for the KVM Switch and KMM Tray Components

Table B-8 lists the replacement parts for the KVM switch and KMM tray components, which are covered under the Oracle Premier Support for Systems warranty.

See Also:

MergePoint Unity Switch Installer/User Guide for repair instructions at

http://pcs.mktg.avocent.com/@@content/manual/590883501c.pdf

Table B-8 Replacement Parts for KVM Switch and KMM Tray Components

Part Number Description Repair Category Repair

371-4778

Assembly, KMM, with Japanese keyboard and mouse module

IR

See Chapter 2 of MergePoint Unity Switch Installer/User Guide

371-4779

Avocent MPU4032DAC-001 32-port KVM switch, RoHS:Y

IR

See Chapter 2 of MergePoint Unity Switch Installer/User Guide

371-4780

Avocent KMM drawer with United States keyboard, RoHS:Y

IR

See Chapter 2 of MergePoint Unity Switch Installer/User Guide

371-4781

Avocent (DSRIQ-USB) DB 15 M to RJ45/USB KVM adapter, RoHS:Y

IR

See Chapter 2 of MergePoint Unity Switch Installer/User Guide

B.9 Parts for Power Distribution Units

Table B-9 lists the replacement parts for the power distribution units (PDUs), which are covered under the Oracle Premier Support for Systems warranty.

Because of the number of cables and connections, Oracle recommends shutting down the Oracle Big Data Appliance rack during the replacement of power distribution unit parts.

See Also:

Sun Rack II Power Distribution Units User's Guide for repair instructions at

http://docs.oracle.com/cd/E19844-01/E23443-01/index.html

Table B-9 Replacement Parts for Power Distribution Units

Part Number Description Repair Category Repair

180-2379

13A/250V 90 degree IEC 320 Sheet E to IEC 320 C13 cord, 1 meter, RoHS:Y

HS

Not applicable

180-2380

13A/250V 90 degree IEC 320 Sheet E to IEC 320 C13 cord, 2 meter, RoHS:Y

HS

Not applicable

371-3995

Three-phase PDU: 15 kVA, IEC309 60A, 4-pin, 250 VAC, three-phase IP67, North America, RoHS:Y

IR

See Chapter 3 of Sun Rack II Power Distribution Units User's Guide

371-4000

Three-phase PDU: 15 kVA, 5-pin, IEC309 32A, 5-pin 230/400V, three-phase IP44, international, RoHS:Y

IR

See Chapter 3 of Sun Rack II Power Distribution Units User's Guide

371-4199

Single-phase PDU: 15 kVA, with three 30A/250V 2-pole/3-wire NEMA L6-30P plugs, North America, RoHS:Y

IR

See Chapter 3 of Sun Rack II Power Distribution Units User's Guide

371-4201

Single-phase PDU: 15 kVA, with three blue 32A/240V splash-proof 2-pole/3-wire IEC 60309 plugs, international, RoHS:Y

IR

See Chapter 3 of Sun Rack II Power Distribution Units User's Guide

B.10 Cables and Cable Accessories for an Oracle Big Data Appliance Rack

Table B-10 lists the replacement cables and cable accessories for an Oracle Big Data Appliance rack, which are covered under the Oracle Premier Support for Systems warranty.

See Also:

Table B-10 Replacement Cables for an Oracle Big Data Appliance Rack

Part Number Description Repair Category Repair

350-1287

Slim rail, CMA, 1U-2U for Sun Fire servers

BDA-O

  1. If the server is currently running, then shut it down gracefully. See "Powering On and Off Oracle Big Data Appliance" for additional information.

  2. See "Installing the Cable Management Arm" in Sun Fire X4170, X4270, and X4275 Servers Installation Manual at

    http://docs.oracle.com/cd/E19477-01/820-5827-13/rack_install.html#50614309_99582

350-1519

Serial cable kit, RoHS:Y with the following:

  • USB to DB 9-pin M serial cable

  • DB 9-pin F to DB 9-pin F null modem cable

HS

See "Understanding Cabling" in the Sun Datacenter InfiniBand Switch 36 Installation Guide at

http://docs.oracle.com/cd/E26698_01/html/E26434/cggfhjcc.html

530-4403

4x QSFP copper QDR InfiniBand cable, 2 m, RoHS:Y

HS

  1. See "Maintaining the InfiniBand Network."

  2. See "Understanding Cabling" in the Sun Datacenter InfiniBand Switch 36 Installation Guide at

    http://docs.oracle.com/cd/E26698_01/html/E26434/cggfhjcc.html

Note: Redundancy is lost during cable replacement.

530-4404

4x QSFP copper QDR InfiniBand cable, 3 m, RoHS:Y

HS

  1. See "Maintaining the InfiniBand Network."

  2. See "Understanding Cabling" in the Sun Datacenter InfiniBand Switch 36 Installation Guide at

    http://docs.oracle.com/cd/E26698_01/html/E26434/cggfhjcc.html

530-4415

4x QSFP copper QDR InfiniBand cable, 5 m, RoHS:Y

HS

  1. See "Maintaining the InfiniBand Network."

  2. See "Understanding Cabling" in the Sun Datacenter InfiniBand Switch 36 Installation Guide at

    http://docs.oracle.com/cd/E26698_01/html/E26434/cggfhjcc.html

530-4432

Ethernet cable, Cat 5/5E, RJ45 to RJ45, 7 foot, blue, RoHS:Y

HS

See Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

530-4433

Ethernet cable, Cat 5/5E, RJ45 to RJ45, 10 foot, red, RoHS:Y

HS

See Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

530-4434

Ethernet cable, Cat 5/5E, RJ45 to RJ45, 7 foot, red, RoHS:Y

HS

See Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

530-4435

Ethernet cable, Cat 5/5E, RJ45 to RJ45, 10 foot, black, RoHS:Y

HS

See Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

530-4436

Ethernet cable, Cat 5/5E, RJ45 to RJ45, 7 foot, black, RoHS:Y

HS

See Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

530-4437

Ethernet cable, Cat 5/5E, RJ45 to RJ45, 7 foot, orange, RoHS:Y

HS

See Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

530-4438

Ethernet cable, Cat 5/5E, RJ45 to RJ45, 10 foot, black, RoHS:Y

HS

See Cisco Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide.

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