Advantages: If the circuit designed in accordance with international standards, such as four/six-wire system, adopts RS485 or other signal modulation methods, because it is dedicated for dedicated lines, the signal transmission is relatively stable and not easy to be interfered by external factors.

Disadvantages: Complicated wiring, aesthetic impact, heavy construction workload, complicated operation, inconvenient maintenance, and maintenance by professionals; if it is not designed in accordance with international standards, such as the popular two-wire system (simple) in China, there is a certain degree of instability , Reliability is compromised. It often happens that one extension fails and the entire system is paralyzed. In addition, hospitals generally require integration with the oxygen supply tank system, which requires very high qualifications for construction and is not easy to maintain.