Appendix A: Cabling Information And Specifications; Qsfp Cable; Figure 19: Qsfp Connector-Dimensions; A.1 Qsfp Cable - Mellanox Technologies Grid Director 4036E Installation Manual

Appendix A:
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

Mechanical Dimensions:

Figure 19: QSFP Connector-Dimensions

54
Cabling Information and
Specifications
NOTE:
QSFP to CX4 cables are available to connect 4036E equipped with QSFP with legacy
DDR/SDR systems equipped with CX4 connectors.
Troubleshooting