The QuickSwitch® 6259R 16-Channel Fiber Optic ST Simplex A/B/Off-Line Switch allows devices connected to COMMON port of each channel access to the A or B port on each channel. All channels are switched simultaneously. The QuickSwitch® 6259R Fiber Optic switch is enclosed in a standard 2U rackmount casing. This 16-channel switch may be controlled locally by manually operating the front panel pushbutton. The front panel LED display indicates all of the switch positions and unit power status.