{"product_id":"black-box-test-and-troubleshoot-fiber-optic-links-in-networks-or-devices-loopbacks-loop","title":"Black Box Test And Troubleshoot Fiber Optic Links In Networks Or Devices. Loopbacks  Loop","description":"Test and troubleshoot fiber optic links in networks or devices.Loopbacks  loopback  the signals from the transmit to the receive pairs.Use to locate faults.Features a ceramic ferrule.","brand":"Black Box","offers":[{"title":"Default Title","offer_id":53082825752883,"sku":"ETS4158558","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/3397\/files\/ETS4158558.jpg?v=1771982436","url":"https:\/\/www.systemsdirect.com\/products\/black-box-test-and-troubleshoot-fiber-optic-links-in-networks-or-devices-loopbacks-loop","provider":"SystemsDirect.com","version":"1.0","type":"link"}