Series C76 Optically isolated computer input/output modules C76 I/O INTERFACE SYSTEM APPLICATIONS • Robotics • Programmable Controllers • Process Control • Machine Tool Control • Energy Management • Automatic Test Equipment FEATURES/BENEFITS • Input Enable Function: For computer timing function control. • Floating Outputs: Eliminates ground loops and signal noise. Protects computer I/O and logic circuits • Low Off-State Leakage: High off-state impedance • Switches/Controls High Voltages: To 250 Vrms Switches/Controls High Currents: To 1.0 Arms • High Noise Immunity: Control signals isolated from switching noise • High Dielectric Strength: Safety and protection of control and signal level circuits DESCRIPTION The Series C76 solid-state computer input/output modules are designed expressly for application in computerized control systems where reliable noise-free interface of switching is required to isolate computer logic elements from high conducted noise encountered in industrial environments. Sensitive logic circuitry is kept noise-free by means of optical isolation between logic and power lines. Output modules allow either TTL or CMOS level signals to control the switching of power to high voltage and high current loads. Hysteresis at the input significantly increases the noise margin when used in the CMOS input mode, preventing false triggering in noisy environments Input modules convert the presence or absence of load level voltages from pressure, flow, temperature and other transducers, limit switches, solenoids or relays to “clean” low level logic signals for computer input. An ENABLE function maintains the module’s output in an “open” state until the ENABLE terminal is brought up to the bias supply level. C76 20 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2002 TELEDYNE RELAYS C76\072002\Q1 Series C76 © 2002 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com C76 21 C76\072002\Q1 Series C76 / C76AO-1 Input Modules C76 22 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2002 TELEDYNE RELAYS C76\072002\Q1 Series C76 / C76AI-1 Input Modules © 2002 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com C76 23 C76\072002\Q1 Series C76 / C76D1-1 Output Modules C76 24 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2002 TELEDYNE RELAYS C76\072002\Q1 Series C76 / C76DO-1 Output Modules © 2002 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com C76 25 C76\072002\Q1