After picking up the optical module, align the electric cleaning pen with the optical fiber interface of the optical module, press the button and stop for about 1 second, the pen head will automatically clean the port, and finally pull out the pen head to complete the. After picking up the optical module, align the electric cleaning pen with the optical fiber interface of the optical module, press the button and stop for about 1 second, the pen head will automatically clean the port, and finally pull out the pen head to complete the. Dust particles, oil residue, and fingerprint traces on the optical interface of an SFP transceiver can increase insertion loss, raise the bit error rate (BER), and ultimately lead to unstable links or unexpected network downtime. In high-density data center and telecom environments, these issues. Knowing how to clean SFP modules, performing routine SFP maintenance, and maintaining your optical module will avoid downtime and prolong the usable life of your equipment. This article will give you practical tips on keeping your modules functioning well and your network healthy. Inspection Tool options Storage tips 1. Choosing the proper cleaning products and using the proper methods are as important as cleaning the component itself.