H3C Pluggable SFP/SFP+/XFP Transceiver Modules Installation Guide (CH&EN,V1.03)

BOM:3105A00Y

l      Carefully read this manual before installing the transceivers. l      The descriptions in sections 1 through 4 in this manual are applicable to all SFP, SFP+, and XFP transceivers provided by H3C and the descriptions in section 5 are applicable to SFP+ transceivers and cables.

 

1  Wearing an ESD-Preventive Wrist Strap

As the transceivers are ESD sensitive products, be sure to wear an ESD-preventive wrist strap when installing or removing a transceiver.

Make sure that the wrist strap has good skin contact and attach the wrist strap wire to the ESD jack (if any) on the device chassis as shown in the left part of Figure 1, or to the rack with an alligator clip as shown in the right part of Figure 1.

Figure 1 Ground the ESD-preventive wrist strap

 

If you also use ESD gloves, wear the wrist strap outside an ESD glove and ensure that it has good contact with the glove.

2  Installing a Transceiver

When installing or removing a transceiver, avoid touching the connector of the transceiver with a bare hand.

 

Pivot the clasp of the transceiver up so that it catches a knob on the top of the transceiver, and then, holding both sides of the transceiver, gently push the transceiver into the socket until it has firm contact with the socket (you can feel that the top and bottom spring tabs catch in the socket). See Figure 2. In the case of limited space, you can gently push against the front face of the transceiver instead of holding the sides.

Figure 2 Install a transceiver

 

l      Do not remove the dust plug from the transceiver before installing it. l      Remove the fibers, if any, from the transceiver before installing it.

 

3  Removing a Transceiver

First disconnect the fiber cable from the transceiver, then pivot the clasp down to the horizontal position to release the spring tabs from the socket, and then pull the transceiver out of the socket, as shown in Figure 3.

Figure 3 Remove a transceiver

 

4  Wrong Installation and Removal Practices

Figure 4 Plug/unplug a transceiver module without wearing an ESD-preventive wrist strap

 

Plugging or unplugging a transceiver without taking proper grounding measures may result in ESD breakdown of the electronic components in the transceiver and/or the transceiver socket.

Figure 5 Unplug a transceiver module with the clasp in vertical position

 

Pulling the transceiver out by force without releasing the spring tabs may damage the spring tabs and/or the transceiver socket.

5  SFP+ Transceiver/Cable Installation Guidelines

Installing an SFP+ Transceiver

Take an SFP+ transceiver that you will install with the clasp at the bottom as an example. Because the spring tab of the SFP+ socket exerts an upward push on the transceiver, you need to press down the SFP+ transceiver a little (in the direction shown in Figure 6) when inserting it into the SFP+ socket, so that it can be inserted into the socket in a parallel direction and there is space between the transceiver top and the socket top (see callout 1 shown in Figure 6).

Figure 6 Correct installation practice

(1) Space between the transceiver top and the socket top

(2) Spring tab

 

For an SFP+ transceiver that you will install with the clasp at the top, there should be space between the transceiver bottom and the socket bottom.

Wrong installation practice: There is no space between the transceiver top and the socket top (see the black pane shown in Figure 7) during the installation for an SFP+ transceiver that you will install with the clasp at the bottom.

Figure 7 Wrong installation practice

 

Removing an SFP+ Cable

There is a clip on the SFP+ cable and a triangular pin on the transceiver socket functioning together to prevent the SFP+ cable from disengaging from the transceiver socket.

Figure 8 Triangular pin and clip structure

(1) Triangular pin

(2) Clip

 

To plug out an SFP+ cable, apply gentle pressure with your thumb to the connector, and then pull the clasp on the cable in a parallel direction.

Figure 9 Correct and wrong removal practice of an SFP+ cable

On the left of Figure 9 is a correct removal practice: the clasp is pulled in a parallel direction; on the right is a wrong removal practice: the clasp is pulled not in a parallel direction, which will make the cable hard to pull out and even damage the triangular pin and clip.

 

 

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