Specialty Components Copperhead Series Fibre Channel transceiver line interface module Fiber speed data and communications over 100+ meters of copper Designed to be inter-operable with existing ECL fiber transceiver TM drivers, Copperhead fibre channel copper transceiver line interface modules drive high frequency (fiber speed) signals over copper media. Models TM133 thru TM1062 are designed to deliver fibre channel capabilities to the workstation over shielded twisted pair (STP), twinax, mini coax, and video coaxial cable. Model TM1250 provides communications for short haul Gigabit Ethernet applications, typically over twinax or coaxial cable. Model TM1485 provides communications for SMPTE, also typi- cally over twinax or coax cable. All Copperhead fibre channel copper transceiver line interface modules are supplied as sur- face mount gull wing packages. Features High performance, low cost alternative to completely fiber systems Enhanced distance and signal clarity with complete inter-operability per ANSI X3T11, FC-PH (FC-0 Rev 9.1) Small, discrete passive design incorporates equalizer, transformers, and filters forshort hau applications industrial temp -40C to +85C (-55C to +125C available) Compact active models forlong hau applications -40C to +85C and -55 to +125 Low EMI emissions designed for FCC Class B compliance and use over shielded twisted pair cable with high radiated electromagnetic susceptibility - 10 V/m Low transmit/receive jitter Small footprint for surface mounting Low power dissipation 450 mW typical ECL logic interface - directly compatible with proposed standards Applications Fibre Channel HDTV Gigabit Ethernet SMPTE SONET IEEE 1394B TWO PEARL BUCK COURT BRISTOL, PA 19007-6812 TEL 215-781-6400 FAX 215-781-6403 www.pulsespecialty.comPULSE SPECIALTY COMPONENTS BEFORE AFTER (equalized for Fibre Channel) (unequalized) (Figure 1) Actual oscilloscope tracing of 1.0625 (Figure 2) Tracing of the same signal after Gb/s unequalized input to receiver pins 13 and equalization. Receiver output measured at pins 14 after transmission over 30 meters of twinax 2 and 3. cable. Technical description Copperhead fibre channel transceiver line interface modules (LIM) take differential ECL level NRZ data signal from the available fibre channel (or Gigabit Ethernet) silicon. The signal is then converted to drive level, pre-conditioned with an output filter, and transmitted over the cable through an interfacing wideband pulse transformer. The transformer converts the signal to current and voltage levels, with exceptionally low transmit jitter, suitable for transmission on STP, twinax or coaxial cable. The trans- ceiver matches the impedance of both the ECL circuit and the cable plant, providing a resultant output signal with minimum jitter and return loss. The receiver portion of the transceiver LIM takes the signal from the media cable and equalizes it by using a unique wideband pulse transformer and circuitry. This initi- ates the conversion process of reducing the composite signal to ECL level NRZ for the next level fibre channel silicon. Benefits of transformer coupling The pulse transformers used in Copperhead transceiver LIMs provide high isolation and optimum damping of transients. They also eliminate DC components in the signal and provide common mode signal rejection. The transformer is also used to match the load to the source and provide maximum power transfer, and also to prevent reflections from transmission line effects. TWO PEARL BUCK COURT BRISTOL, PA 19007-6812 TEL 215-781-6400 FAX 215-781-6403 www.pulsespecialty.com Fibre Channel Module 2