This compact 1 RU right-hand, pivoting tray houses six optical couplers and a patch panel to suit ASC connectors. Its application is for transmission traffic monitoring purposes. The couplers used for Transmission systems are 90/10 and for Receive systems are 50/50. These 1 x 2 couplers are available separately. The tray can be front or rear mounted in either a 19 or 21 inch rack. A cabling layout diagram is available on request.