Cisco CSS11503-AC Hardware Installation Guide - Page 70

Chapter 2 Cabling the CSS 11503 and CSS 11506 Modules Cabling and Troubleshooting the CSS Table 2-3 describes the FEM LEDs and their indications. Table 2-3 Fast Ethernet Module LED Descriptions LED Name Link Color Green State Off On Blinking Indicates No link established Link established but no activity Link established with transmit or receive activity Port is operating at half duplex Port is operating at full duplex Duplex Green Off On Note If all of the FEM Link and Duplex LEDs blink synchronously, the module has failed. Gigabit Ethernet Module Connectors and LEDs The Gigabit Ethernet Module (GEM), model CSS5-IOM-2GE, contains two 1000-Mbps SFP GBICs with LC-type connectors. The GEM can use either: • Longwave-length SFP GBICs (CSS5-GBIC-LX). The longwave length transceiver (1000BASE-LX) can reach 550 meters for all multimode media types. For single-mode fiber, the distance is 5,000 meters. Shortwave-length SFP GBICs (CSS5-GBIC-SX). The transceiver distance can reach from 220 meters to 500 meters, depending on the quality of the fiber. • Warning Because invisible radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to radiation and do not stare into open apertures. Cisco 11500 Series Content Services Switch Hardware Installation Guide 2-16 78-13884-06