It offers 2 or 4 optically isolated serial ports with RS-232, RS-422, and RS-485 protocols, as well as 24 digital I/O lines, all on a single board. Optical isolation of 1000V DC or AC protects your embedded system from ground differentials or noise spikes that would damage. This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert. An optical module is a typically hot-pluggable optical transceiver used in high-bandwidth data communications applications. It features an RJ45 connector and uses UTP cables as the transmission medium. Since Ethernet transmission over UTP cables is generally limited to distances of. Describes what an optical module is and FAQs, including the fundamentals, appearance and structure, key performance counters, common types, and naming conventions of optical modules, causes of optical module failures and corresponding protection measures, types of optical modules supported by. As an essential component of optical fiber communication, optical modules are optoelectronic devices that facilitate the conversion between optical and electrical signals during the transmission process.