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Panduit Corporation, 2010 Page 1 of 7

Installation Guidelines, 10Gig

™

SFP+ Direct Attach Copper Cable Assembly

PN533A

Introduction

As virtualization, consolidation, and convergence initiatives continue to expand in Data Centers, so do the

demands placed on the physical infrastructure. To meet the needs for higher bandwidth along with lower

power interconnects, Panduit

offers 10Gig™ SFP+ Direct Attach Copper Cable Assemblies.

This high speed data transport capability is ideal as server virtualization becomes more prevalent. 10Gig

interconnects are needed to facilitate effective server utilization to run multiple virtual machines as well as

server consolidation. By incorporating 10Gig™ SFP+ Copper Cable Assemblies into the physical

infrastructure, organizations can achieve 10Gig performance without additional signal processing or

conversion. This provides an ideal low power, low latency 10 Gbps server interconnect option for top of

rack switching deployments.

Passive 10Gig™ SFP+ Copper Cable Assemblies generally have a reach limitation of 7 meters (23 feet),

and many network deployments will consist of a mixed copper/fiber solution with Panduit 10Gig™ OM3

fiber.

Panduit 10Gig™ SFP+ Direct Attach Copper Cable Assemblies

Panduit 10Gig

™

SFP+ Copper Cable Assemblies are factory terminated and constructed of high-speed

twin-axial shielded cable with SFP+ modular connectors on each end. The cables are compliant to the

SFF-8431 specification.

The Small Form Factor committee approved and published SFF-8431 in July of 2009, with Panduit

as a

member and a signee. The document covers host ports, optical transceivers, and copper cables.

Appendix E specifies direct attach copper cable assemblies.

These passive cable assemblies offer a low power, low latency, low cost option for a 10Gig interconnect.

They may be plugged into SFF-8431 SFP+ compliant ports and are interchangeable with fiber optic

transceivers. (Note: some system vendors have designed copper-only or fiber-only SFP+ ports, so be

sure to confirm host port capabilities with the active equipment vendor)

The Panduit

10Gig™ SFP+ Direct Attach Cable Assemblies are constructed with high frequency 10 GHz

100 ohm parallel shielded pairs, with two wire pairs in the cable. Panduit

uses 30AWG for cables less

than 4 meters in length and uses 24AWG for 4 meter and longer cables.

The connector consists of a paddle card with patent pending circuitry to ensure superior high frequency

signal integrity, is housed in a die cast backshell, and incorporates a latching mechanism that allows

insertion and de-insertion into the mechanical cage of a host port on the active equipment. The same

host port cage can accept optical transceivers or direct attach cable assemblies. The back of the paddle

card has pads which form the contacts to the 20 pin host connector inside the cage. The connector has

an EMI shroud that provides 360 degrees of contact with the host cage to ensure excellent EMI immunity.

Cross-section 2-pair twin-axial cable

Panduit

SFP+ connector

Summary of content (7 pages)

PAGE 1
Installation Guidelines, 10Gig™ SFP+ Direct Attach Copper Cable Assembly PN533A Introduction As virtualization, consolidation, and convergence initiatives continue to expand in Data Centers, so do the demands placed on the physical infrastructure. To meet the needs for higher bandwidth along with lower ® power interconnects, Panduit offers 10Gig™ SFP+ Direct Attach Copper Cable Assemblies. This high speed data transport capability is ideal as server virtualization becomes more prevalent.
PAGE 2
10Gig™ SFP+ Copper Cable Assembly Installation Guidelines PN533A Standard Cable Part Numbers Part Number Length* Cable Gauge Nominal Cable O.D. Weight/pc PSF1PXA0.5M** 0.5 m (1.6 ft) 30AWG 4.1 mm (0.16 in) 0.10 lb. PSF1PXA1M** 1.0M (1.6ft) 30AWG 4.1 mm (0.16 in) 0.13 lb. PSF1PXA1.5M** 1.5 m (4.9 ft) 30AWG 4.1 mm (0.16 in) 0.16 lb. PSF1PXA2M** 2.0 m (6.6 ft) 30AWG 4.1 mm (0.16 in) 0.19 lb. PSF1PXA2.5M** 2.5 m (8.2 ft) 30AWG 4.1 mm (0.16 in) 0.22 lb. PSF1PXA3M** 3.0 m (9.
PAGE 3
10Gig™ SFP+ Copper Cable Assembly Installation Guidelines PN533A SFP+ Cable Assembly Connector Pin Out SFP Connector Module Contact Assignments (Top and Bottom are backwards) SFP+ Pin Assignment Definitions Contact Logic(1) Symbol Power Sequence Order Note 2 st 1 rd 3 rd 3 rd 3 rd 3 rd 3 rd 3 rd 3 rd 3 st 1 st 1 rd 3 rd 3 st 1 nd 2 nd 2 st 1 rd 3 rd 3 st 1 Description Note Case Case Module case 2 1 VeeT Module transmitter ground 3 2 LVTTL-O Tx_fault Module transmitter fault (N/A) 4 3 LVTTL-I Tx_dis
PAGE 4
10Gig™ SFP+ Copper Cable Assembly Installation Guidelines PN533A Installing and Removing 10Gig™ SFP Copper Cable Assemblies To attach a cable assembly, remove the purple protective EMI cap. Then simply insert the connector end into the cage of the SFP+ host port in the active equipment. Make sure the cable is fully inserted and engaged. ATTENTION: Observe precautions for handling electrostatic sensitive electronic devices when installing this product.
PAGE 5
10Gig™ SFP+ Copper Cable Assembly Installation Guidelines PN533A Cable Management The weight of large bundles of SFP+ twin-axial cables can exert a significant force along the horizontal plane, and specifically on the host port of the active equipment. If the cable emerges from the rear of the connector at too sharp an angle, excess mechanical stress may be transmitted both along the cable and into the circuit board located inside the connector.
PAGE 6
10Gig™ SFP+ Copper Cable Assembly Installation Guidelines PN533A General Deployment Topology Guidelines Within a single 84 inch 45 RU cabinet, conservatively the longest connection will be 7 ft or 2.1 meters to reach from the top U to the bottom and approximately 1.5 ft or 0.45 m to route to any port on either end.
PAGE 7
10Gig™ SFP+ Copper Cable Assembly Installation Guidelines PN533A Using Middle of Row switching topology, an 8 cabinet row may be achieved with 7m cables. This has two switch cabinets in the center and 3 server cabinets on each side. If all switching were placed in a single center cabinet, a 9 cabinet row with 8 server cabinets may be covered. To enable longer row, fiber and SFP+ optical transceivers are ® required.