Ruijie RG-S7800C-X Series Hardware Installation And Reference Manual page 90

Hardware Installation and Reference Guide
Figure 8-4 Removing the QSFP+ or QSFP28 Module with the Pull-tab
2. Precautions

Unplug the optical cable before replacing the module.

Do not pull out the module without excessive force before turning down the handle of the module.

Immediately install the dust plug to the module port and the device optical port.
8.3 Replacing Modules
1. Preparation
(1) Wear an anti-ESD wrist strap and ensure that it is well grounded.
(2) Take out the module from the package.
2. Procedure
(1) Unplug all cables or fibers such as fibers and RJ45 twisted pairs from the panel.
(2) Hold down levers on both sides of the panel and pull out the lever.
(3) Slide the card along the rail. When the card is about 10 cm (3.94 in.) away from the chassis, hold the bottom
of the card with one hand and hold the card with the other hand to avoid falling.
(4) Pull out the levers on both sides of the card. Hold the bottom of the card with one hand and hold the card
with the other hand to insert the card into the slot along the rail.
(5) Drive the levers close to the card until the card hits the rear panel. The card will be fastened.
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Replacing Modules