The optical transceiver itself relies on optical fiber to isolate interference, but the power supply, optical cable metal parts, and copper cables entering and exiting the equipment are still weak links. If these points are taken care of during installation, the equipment life and communication stability will be greatly improved. Let's start with metal parts, ports and wiring.
When optical fiber enters the office, metal parts are processed first
The metal reinforced core of the outdoor optical cable must be reliably grounded or insulated at the entrance, otherwise the induced lightning current will be introduced into the computer room.Three-in-one data optical transceivercabinet. It is recommended to use armored optical cables as the downlink, and then replace them with armored jumpers at the entrance and exit of the cabinet. This not only prevents rat bites, but also gives the metal parts a clear grounding end point, so that they do not hang in the cabinet. For the incoming line section that passes through an open area, the metal parts must be grounded and discharged before entering the equipment room when overhead.
Power and port protection
- Install a surge protector at the DC power supply entrance, especially in minefields.
- Each copper cable end of RS485 and RS232 entering and exiting the equipment is equipped with a signal lightning protector.
- The chassis is grounded at a single point to avoid forming a loop with the power cable.
Wiring habits to reduce interference
Signal optical cables and power cables should be laid in separate tubes and kept at a distance, and the jumpers on the serial port side should be as short as possible. When multiple telephones or data links need to be centralized in the computer room, you can14-slot box transceiver rackUnified power supply, unified grounding, and protection are also concentrated at one point, which is much more standardized than taking power from scattered points and handling it one by one. The computer room side is equipped with a UPS and an independent grounding bar to integrate power supply and signal protection into one system.
The key to anti-interference is to understand: optical fiber only isolates the signal path, and power supply and copper cables must be protected by standardized grounding and surge protection. EB-LINK engineering support can assist with on-site inspections one by one.