What is FTTO?
Fiber to office (FTTO) is an access method that uses optical fiber to connect the communication office and company or office users. The introduction of optical fiber is exclusively used by a single company or office user. The ONU is generally placed in the central computer room of the enterprise or unit to obtain the most superior guarantee measures and to facilitate the connection with user equipment.
The multi-service access system and access method under the PON network can also be implemented in FTTO mode.
as the picture shows,
①Place OLT, switches, CATV transmitters, fiber amplifiers, ODF racks, first node splitting box and other equipment in the CBD central computer room, and complete the first node optical splitting in the CBD central computer room. The tree-like backbone optical cable network provides resource capacity for FTTO's massive transformation.
②The second optical splitting node (split distribution box) is placed in the weak current shaft of the corridor, and the optical fiber is connected to the ONU placed in the computer room of each company/office.
③ONU can provide WiFi, data, voice, and video services. The ONU data port is usually connected to the company's core switch, and then connected to the camera and terminal computer through the switch.
④Enterprises with higher requirements for information security can also enter the router. Routers can implement network management functions, control network access, and can effectively manage access rights and protect network security. Now the new routers have added some functions of the firewall to effectively resist network attacks.
1. What is the composition of PON (Passive Optical Network)?
OLT (Optical Line Terminal)
ONU (Optical Network Unit)
ODN (Optical Distribution Network)
2. The wavelength of the PON network?
PON network OLT-ONU section, optical fiber, optical signal transmission, 1310nm upstream, 1490nm downstream