Abstract: A port tracer including a housing, a light guiding tunnel, and a light guide cover. The housing has a first side and a second side opposite to each other and a third side connected to the first side and the second side. A first opening and a second opening are located on the first side and the second side respectively. The light guiding tunnel is disposed inside the housing. The light guiding tunnel has a first light entrance-exit and a second entrance-exit that face the first side and the second side respectively. The light guide cover is detachably connected to the first opening. The light guide cover covers the first light entrance-exit. The third side has a third opening. A part of the light guide cover is located inside the housing and opposite to the third opening.

Abstract: A port tracer including a housing, a light guiding tunnel, and a light guide cover. The housing has a first side and a second side opposite to each other and a third side connected to the first side and the second side. A first opening and a second opening are located on the first side and the second side respectively. The light guiding tunnel is disposed inside the housing. The light guiding tunnel has a first light entrance-exit and a second entrance-exit that face the first side and the second side respectively. The light guide cover is detachably connected to the first opening. The light guide cover covers the first light entrance-exit. The third side has a third opening. A part of the light guide cover is located inside the housing and opposite to the third opening.

Abstract: A fiber optic connector includes a positioning member formed with two installation holes and two guiding grooves, two central rods and a locking member. The locking member has two guiding portions and is operable to move relative to the positioning member between a locking position, where each of the guiding portions extends into an intersection of the corresponding guiding groove and the corresponding installation hole to engage an annular groove of the corresponding central rod for restricting movement of the central rods along the installation holes, and an open position, where the guiding portions are disengaged from the annular grooves, thereby allowing the central rods to move along the installation holes.

Abstract: A first clip (22, 70) is secured to the shank portions (24) of the plugs (18) at the ends of two optical cables (12, 16). A second clip (22, 70) is connected to the shanks (24) of the plugs (18) at the ends of two other optical cables (10, 14). The clips (22, 70) connect the plugs (18) together, making them be duplex plugs. The duplex plugs are insertable into socket openings formed in the ends of a connector housing (20).

Abstract: A plug (10) is secured to an end of a first length of fiberoptic cable. A receptacle (14) is connected to an end of a second fiber topic cable. The receptacle component (14) includes a cylindrical sidewall (24) that includes an axial key slot (36). The plug (10) includes a shallow forward girth groove (50) that is immediately forwardly of a deeper rearward girth groove (52). A ring (32) is initially positioned with the deeper girth groove (52). A key (34) extends axially forwardly from ring (32). The ring (32) makes a loose fit in rearward girth groove (52) and a tight, interference fit with forward girth groove (50). Initially, with the ring (32) in the rearward girth groove (52), the plug (10) is moved into the socket (30) and the key (34) is started into key slot (36).

Abstract: A closure wall (30) is pivotally connected to a pair of opposite sidewalls (48, 50) by pivot pins (68) carried by the closure wall bracket (38) and pivot pin receiving openings (74) in the sidewalls (48, 50). The pivot pins (68) are connected to the closure wall (38) by pivot pin supporting arms (62, 64). These arms (62, 64) are connected to side portions (56, 58) of the closure wall (38) adjacent open ends of splits (40, 42) that separate the side portions (56, 58) from the central portion (60). The pivot pins (68) and pivot pin receiving openings (74) are offset from end surfaces (78, 80, 82, 84) on the socket sidewalls (48, 50, 70, 72) the distance x. They are also offset from the outer surface of the sidewall (72). Sidewall (72) intersects end wall (82) at a line (L).

Abstract: A buffering sleeve (46) is slid onto an outer end portion of an optical fiber cable (12) that includes an optical fiber surrounded by a buffer covering (16). The buffering sleeve (46) is crimped onto the buffer covering (16). A bared length of optical fiber (14) extends endwise outwardly from the buffering sleeve (46), into and through a center opening (40) in a ferrule (38) that is at the outer end of a connector fitting (10). Connector fitting (10) includes an inwardly opening inner socket (34) that snugly receives the buffer sleeve (46). The inner end portion of the inner socket (34) is crimped onto an inner end portion (52) of the buffering sleeve (46). The bared optical fiber (14) projects forwardly through center opening (40) in ferrule (38). Outwardly of the ferrule (38), the optical fiber (14) is cleaved and polished, flush with the outer end (39) of the ferrule (38).

Abstract: A first coupler part (12) is fastened to a wall (W) by a first pair of screw fasteners (32, 34). The screw fasteners (32, 34) have heads that bear against surface portions of the first coupler part (12) that immediately surround openings (28, 30) that receive the screw fasteners (32, 34). A second coupler part (14) is connectable to the surface (20) of first coupler part (20) that is directed away from the wall (W). When the second coupler part (14) is moved against the first coupler part (12), the heads of the screw fasteners (32, 34) enter into enlarged openings (68, 70) in the second coupler part (14). This allows the surface (48) of the second coupler part (14) to be moved against the surface (20) of the first coupler part (12). The second pair of fasteners (40, 42) are used to connect the second coupler part (14) to the first coupler part (12). Or, the second screw fasteners (40, 42) may extend through openings in the first coupler part and screw into openings in the wall (W).