Optical transceivers contain hot-swappable circuitry that protects the module's internal components from damage. When an optical module is unplugged or plugged in, the hot-swap circuit detects changes in power supply and signal, and takes measures to protect the stability of the. The hot-pluggable feature of optical transceivers allows for rapid replacement, upgrade, or reconfiguration without powering down network equipment. The following figure shows the QSFP-DD transceiver, but the procedures outlined in this document apply to all pluggable transceivers. Hot pluggable optical modules can be directly inserted or unplugged during the operation of the device, and will not cause damage to the device or loss of data in the process. It refers to inserting or removing components such as main control boards, interface boards, and optical modules into or from a device without powering off the device. Executing these MSA SFF-8431 compliant steps prevents I2C bus lockups, mitigates inrush current transients, and.
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