000]dBm In the preceding command output, the information in bold shows the optical power of the optical module. SFP (Small Form-factor Pluggable) optical modules are compact, hot-pluggable transceivers that enable network equipment to connect seamlessly to fiber and copper links. These modules, including SFP, SFP+, and SFP28, are widely used in enterprise networks, data centers, and carrier-grade deployments. EPON module, defined by the IEEE 802. 3ah standard in 2004, which can support the transmission rate of 1. Transceivers are manufactured to meet the specifications (usually of the IEEE standards) and ranges represent the values that the part can operate within.