The TTL Trigger Isolation Adapter is ideal for recording trigger signals produced by MRI scanners (triggers on rising edge). Short duration TTL pulses have their pulse width elongated by the adapter, and this pulse width elongation allows short trigger pulses to be recorded using lower sampling rates. This isolation adapter connects a TTL level source to the HLT100C module in the Control room (do not place INISO-TRIG in Chamber room).
pulse profile: Negative going pulse
pulse width: 50-200 µsec
triggering: Rising edge of input pulse
profile: Positive pulse
pulse width: 2.2 msec (nominal)
pulse voltage range: 0-5 V (TTL)
Propagation delay: ~ 5 µsec from rising edge of input trigger to rising edge of output signal
Input Voltage: High 4-10 V; Low 0-1 V
Input Current: High 5-15 ma; Low 0-0.25 ma
Isolation: 1500 VDC
Connectors: BNC female (Input) and Phone plug (Output)
Cable: 2 m; phone plug connectors
Interface: HLT100C module (plugs directly into any of the 16 input channels)See More...