Check the listing for details. Pelco FTD1M1ST 1 Channel ST Fiber Transmitter, Multi-Mode. Condition: New. Listed at 475.00 USD. The Pelco FTD1 1-Channel Multimode ST Fiber Transmitter provides transmission of bi-directional data over 1 optical fiber. The plug-and-play design ensures ease of installation by eliminating the requirement of electrical or optical adjustments. This transmitter has a modular design and can be rack-mounted using the EURACK/USRACK chassis (both sold separately) or standalone modules that can be placed on a desktop or mounted to a wall (wall mount kit not required). For standalone and wall mount installations, external power (sold separately) is required for this transmitter unit. This unit can be powered with the recommended FEXTPS fiber external power supply (sold separately). Features Bi-directional data channel that supports EIA RS-232C/D, RS-422/RS-485 (2-wire/4-wire) with Tri-State, Manchester, and Bi-Phase communicationMultimode Fiber Support for Distances up to 4 km (2.5 mi)Single-Mode Support for Distances up to 69 km (42.9 mi)Designed to meet the NEMA TS 1/TS 2 and the Caltrans Traffic Signal Control Equipment Environmental standardsLaser diode for transmission of optical signalsVoltage transient protection on all power and signal input/output linesLED status indicators for monitoring all critical operating parametersHot-swappable rack modulesStandalone or rack-mountable modular design