① Home communication terminal area: meet the space requirements for installing ONU and other home terminal equipment.
② Optical fiber termination area: the area where optical fiber connection (cold connection or fusion) is satisfied.
③ Equipment expansion area: the space for installing various information panels and expansion modules (equipment).
(4) Other spare parts: put a tag on the top of the cabinet door (convenient for all users to mark the cabinet number), power sockets and other accessories.