HLX-GBIC-ZXA 1550nm Single-mode Transceiver 70km Gigabit Interface Converters (GBIC) 3.3V/5V 1.25 Gbps Gigabit Ethernet /1.063 Gbps Fiber Channel Features Compliant with Gigabit Interface Converter Specification SCA-2 Host connector Duplex SC connector Single power supply 3.3V/5V TTL signal detect indicator Hot Pluggable Class 1 laser product complies with EN 60825-11 HLX-GBIC-ZXB 1550nm Single-mode Transceiver 80km Gigabit Interface Converters (GBIC) 3.3V/5V 1.25 Gbps Gigabit Ethernet /1.063 Gbps Fiber Channel Features Compliant with Gigabit Interface Converter Specification SCA-2 Host connector Duplex SC connector Single power supply 3.3V/5V TTL signal detect indicator Hot Pluggable Class 1 laser product complies with EN 60825-11