Features: 1) 19 standard installation 2) Fully-closed structure to ensure the fiber protection, and dust-proof 3) Cold-rolled steel body with electrostatic spraying surface 4) Several types available according to customer\'\'s requirement 5) Optical cable can be led in and out from the top or bottom 6) Including distribution, maintenance, cable / fiber fixing and grounding, operation can be done in front and rear sides 7) Side panels can be dismounted in order to lead in (out) fibers to (from) frames 8) Horizontal fiber tray, vertical fiber tray, and fiber hanging ring make it easy to guide fibers, optimizing the whole distribution system 9) Kinds of arc kits and protection accessories along the fiber path ensure the min. radii of fibers larger than 40mm 10) Cable-fixed plate protect optical cable from torsion and pull