Appendix A: Cabling Information And Specifications; Qsfp Cable - Mellanox Technologies Grid Director 4700 Installation Manual

Appendix A:
This appendix provides supplemental information and specifications.
A.1

QSFP Cable

QSFP (Quad Small Form-factor Pluggable) Key Features:

Small size, high density, hot-pluggable connector with four transmit and four receive
channels

Supports both types of cables:

Copper active or passive cable
 Copper passive cable equipped with two simple passive connectors and a standard
copper cable

Copper active cable equipped with an active device to optimize signal quality

Fibre optic cable delivered as either:

Fibre cable with two separate modules

Active optic cable where cable and optic adaptors are delivered as a single unit
(permanently attached cable)

Data rate: 2.5 Gbps (SDR), 5 Gbps (DDR), and up to 10 Gbps (QDR) per channel

QSFP optic modules use standard MPO parallel 12-fibre jacketed ribbon optical connector

Provide manageability, discovery, and identification capability, such as vendor
identification, module part number, serial number, cable type, using low-speed two-wire
(I2C) interface

Active cables: Integrates digital diagnostic capability to monitor link performance

Latching mechanism

Physical dimensions:
Figure 38: QSFP Connector-Dimensions
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Cabling Information and
Specifications
QSFP to CX4 cables are available to connect 4700 equipped with QSFP with legacy
DDR/SDR systems equipped with CX4 connectors.
System Cabling