The Antaira STF-500C Series are Industrial Grade Design Serial-to-Fiber Media Converters that provide rugged solution to extend asynchronous RS-232, or RS-422/485 serial data transmissions over a distance of up to 2Km in Multimode fiber, or up to 30Km in Single mode fiber. The converter is capable of selecting interface modes for connection to RS-232 (3 or 5 wire), RS-485 (2 or 4 wire, half or full duplex) or RS-422 (4 wire, full duplex). With the High Performance design, the STF-500C series provide: High Data Protection: Secures Asynchronous Serial Data transmissions over EMI resistant fiber at speeds up to 1024Kbps Built-in RS-485 auto detection feature, 8KV ESD Protection and 2.5KV Isolation for Serial data transmission protection; and 10 positions Rotary Switch for RS-422/485 Pull high/low feature. Secure Serial Network: Supports Point-to-Point, Daisy Chain, and Half Duplex Ring Topology Fiber Network Features Supports Point-to-Point Fiber Supports RS-232, RS422/485 (2/4 Wire) Transmission to Single Connections Enhanced Serial Baud Rate up to 1024Kbps Supports ST Single-Mode in 30Km 2.5KV Isolation Protection for Serial Signal Supports Relay Output for Power or Link Failure Warning 10 Position Rotary Switch for RS-422/485 Pull High/Low Transmission Hardened housing with IP30 protection Fan-less and Din-Rail design for harsh industrial environment Redundant Dual Power Inputs (12 ~ 48VDC) Operating Temperature Range: -40~75°C 5-Year Warranty Included CD Manual/Software Quick Installation Guide Wall Mounting Kit Easy Monitoring and Maintenance: Built-in Dual alarm relay contacts and Dual redundant DC power inputs Front LED indicators for any Power, TD/RD, or Fiber Link failure monitoring The STF-500C Series is a high performance & protection solutions for critical applications, such as High Serial Isolation Protection for Outdoor Equipment data extension in ITS Signaling, or VMS; Dual Fiber Ring Redundancy Serial Network in Firm Alarm Panels control; EMI resistant for IEDs data transmission in Substation Automation; Industrial Control in Process Control Automation, such as WWTP and Oil/Gas/Mining.