How to Install 40G QSFP+ Transceiver Modules?

This installation note provides the installation instructions for the 40-Gigabit Quad Small Form-Factor Pluggable Plus (QSFP+) transceiver modules. The modules are hot-swappable input/output (I/O) devices that connect the system's module port electrical circuitry with either a copper or a fiber-optic network.

The 40-Gigabit QSFP+ transceiver module is a hot-swappable, parallel fiber-optical module with four independent optical transmit and receive channels. These channels can terminate in another 40-Gigabit QSFP+ transceiver, or the channels can be broken out to four separate 10-Gigabit SFP+ transceivers. (See Figure1)

The QSFP+ transceiver module connects the electrical circuitry of the system with either a copper or an optical external network. (See Figure 2 for a view of the optical QSFP+ transceiver.) The transceiver is used primarily in short reach applications in switches, routers, and data center equipment where it provides higher density than SFP+ modules.

Figure 1    40-Gigabit QSFP+ Transceiver Module (Copper)

1. QSFP+ transceiver body
2. 10GBASE SFP+ transceivers
3. Pull tab

Figure2 40-Gigabit QSFP+ Transceiver Module (Optical)

1. 40GBASE QSFP+ transceiver body
2. Bail-clasp latch
3. Electrical connection to the module circuitry

Note: The multiple-fiber push-on (MPO) connectors and the duplex LC connectors on the optical QSFP+ transceivers support network interface cables with either Physical contact (PC) or Ultra-Physical Contact (UPC) flat-polished face types. The MPO connectors and the duplex LC connectors on the optical QSFP+ transceivers do not support network interface cables with an angle-polished contact (APC) face type.

The QSFP+ transceiver module can have either a bail-clasp latch or a pull-tab latch. Installation procedures for both types of latches are provided.

The QSFP+ transceiver module is a static-sensitive device. Always use an ESD wrist strap or similar individual grounding device when handling QSFP+ transceiver modules or coming into contact with system modules.

Before install the 40G QSFP+ transceiver module, you need these tools:

• Wrist strap or other personal grounding device to prevent ESD occurrences.
• Antistatic mat or antistatic foam to set the transceiver on.
• Fiber-optic end-face cleaning tools and inspection equipment

To install an QSFP+ transceiver module, follow these steps:

Step 1 Attach an ESD wrist strap to yourself and a properly grounded point on the chassis or the rack.

Step 2 Remove the QSFP+ transceiver module from its protective packaging.

Step 3 Check the label on the QSFP+ transceiver module body to verify that you have the correct model for your network.

Step 4 For optical QSFP+ transceivers, remove the optical bore dust plug and set it aside.

Step 5 For transceivers equipped with a bail-clasp latch:

a. Keep the bail-clasp aligned in a vertical position.

b. Align the QSFP+ transceiver in front of the module's transceiver socket opening and carefully slide the QSFP+ transceiver into the socket until the transceiver makes contact with the socket electrical connector. (See Figure3.)

Step 6 For QSFP+ transceivers equipped with a pull-tab:

a. Hold the transceiver so that the identifier label is on the top.

b. Align the QSFP+ transceiver in front of the module's transceiver socket opening and carefully slide the QSFP+ transceiver into the socket until the transceiver makes contact with the socket electrical connector.

Figure 3    Installing the 40-Gigabit QSFP+ Transceiver Module (Optical Transceiver Equipped with a Bail-Clasp Latch Shown)

Step 7      Press firmly on the front of the QSFP+ transceiver with your thumb to fully seat the transceiver in the module's transceiver socket. (See Figure 4.) If the latch is not fully engaged, you might accidently disconnect the QSFP+ transceiver module.

Figure 4    Seating the 40-Gigabit QSFP+ Transceiver Module (Optical Transceiver Equipped with a Bail-Clasp Latch Shown)

Step 8      For optical QSFP+ modules, reinstall the dust plug into the QSFP+ transceivers optical bore until you are ready to attach the network interface cable. Do not remove the dust plug until you are ready to attach the network interface cable.

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