Abstract: The main body part is a substantially cuboid member in which an optical fiber is disposed. One width-direction side of the main body part is provided with a lid part capable of opening and closing with respect to the main body part on a hinge. An installation part on which an optical fiber or the like is disposed is formed on the upper surface (the surface facing the lid part) of the main body part. The installation part comprises a reference surface and a recessed portion that is formed closer to the distal-end side than is the reference surface and that is formed at a lower position than is the reference surface. The reference surface is a region where the optical fiber or the like is pressed down by a pressing part. The recessed portion is a region where a drop cable is pressed in by a pressing part.

Abstract: On a top face (24a) of a base member (3), V-shaped grooves (15a) and (23a) are provided. On a reverse face (24b) of a base member (3), V-shaped grooves (15b) and (23b) are provided. The V-shaped grooves (15a) and (15b), which are first V-shaped grooves and are for holding optical fibers, and the V-shaped grooves (23a) and (23b), which are second V-shaped grooves and are for holding electrode rods (7), are formed facing each other, respectively. The positions of optical fibers and the electrode rods (7) are determined by the V-shaped grooves (15a) and (15b) and the V-shaped grooves (23a) and (23b), respectively.

Abstract: The base member 3 can be attached to and detached from a base-holding member 5 without using tools and the like. The base-holding member 5 has a positioning mechanism that decides the position of the base member 3 on the base-holding member 5. Here, a reference part that decides the position of the base member 3 on the base-holding member 5 in a direction parallel to an optical fiber installation surface 2, which is an upper surface of the base member 3, is called a horizontal positioning reference part. Also, a reference part that decides the position of the base member 3 on the base-holding member in a direction vertical to the optical fiber installation surface 2 (the direction vertical to the horizontal positioning reference part), which is the upper surface of the base member 3, is called a vertical positioning reference part 6. That is, the horizontal positioning reference part and the vertical positioning reference part 6 are provided on the base-holding member 5.

Abstract: The base member 3 can be attached to and detached from a base-holding member 5 without using tools and the like. The base-holding member 5 has a positioning mechanism that decides the position of the base member 3 on the base-holding member 5. Here, a reference part that decides the position of the base member 3 on the base-holding member 5 in a direction parallel to an optical fiber installation surface 2, which is an upper surface of the base member 3, is called a horizontal positioning reference part. Also, a reference part that decides the position of the base member 3 on the base-holding member in a direction vertical to the optical fiber installation surface 2 (the direction vertical to the horizontal positioning reference part), which is the upper surface of the base member 3, is called a vertical positioning reference part 6. That is, the horizontal positioning reference part and the vertical positioning reference part 6 are provided on the base-holding member 5.

Abstract: On a top face (24a) of a base member (3), V-shaped grooves (15a) and (23a) are provided. On a reverse face (24b) of a base member (3), V-shaped grooves (15b) and (23b) are provided. The V-shaped grooves (15a) and (15b), which are first V-shaped grooves and are for holding optical fibers, and the V-shaped grooves (23a) and (23b), which are second V-shaped grooves and are for holding electrode rods (7), are formed facing each other, respectively. The positions of optical fibers and the electrode rods (7) are determined by the V-shaped grooves (15a) and (15b) and the V-shaped grooves (23a) and (23b), respectively.