Product Features: 1.25 Gigabit SFP module Transmission distance: 10km Wavelength: TX (1550nm) / RX (1310nm) Single-mode, bidirectional communication, LC simplex connector, 3.3V Operating temperature range: 0°C–70°C (-32°F–158°F) / -40°C–85°C (-40°F–185°F) Product Overview: The GBM-123RS is a 1.25 Gigabit single-mode bidirectional SFP module with a transmission length of 10km, using a wavelength of TX 1550nm and RX 1310nm. It uses a simplex connector and operates at 3.3V. The operating temperature range is 0°C to 70°C (-32°F to 158°F) for the standard model, and -40°C to 85°C (-40°F to 185°F) for the wide temperature model. Functions: Compliant with Fiber Channel 100-SM-LC-L standard Compliant with IEEE802.3z Gigabit Ethernet standard Industry-standard small form-factor optical transceiver module Simplex LC (Lucent Connector) Differential LVPECL (Low Voltage Positive Emitter Coupled Logic) input and output Single 3.3V power supply TTL (Transistor-Transistor Logic) signal detection indicator Hot-pluggable Class 1 laser product Specifications: Model Name Distance Wavelength TX Power RX Sensitivity Voltage Connector Type Operating Temp. GBM-123RS 10Km TX:1550/RX:1310 -3dBm ~ -9dBm < -21dBm 3.3V Simplex LC 0°C~70°C / 32°F~158°F GBM-123IRS 10Km TX:1550/RX:1310 -3dBm ~ -9dBm < -21dBm 3.3V Simplex LC -40°C~85°C / -40°F~185°F Ordering Information: ModelDescription GBM-123RS1000Base-LX, Bi-Di SFP TX:1550/RX:1310 Single Mode, 10Km, 0°C~70°C / -32°F~158°F GBM-123IRS1000Base-LX, Bi-Di SFP TX:1550/RX:1310 Single Mode, 10Km, with wide temperature -40°C~85°C / -40°F~185°F ROHS, CE, FC certified Technical Specifications: Model: GBM-123RS Transmission distance: 10km Wavelength: TX 1550nm / RX 1310nm Single-mode, bidirectional, LC simplex connector Operating voltage: 3.3V Operating temperature: 0°C–70°C (standard), -40°C–85°C (wide temperature) Compliant with Fiber Channel 100-SM-LC-L and IEEE802.3z Hot-pluggable, Class 1 laser product ROHS, CE, FC certified