[1] All signals are inputs.
[2] Electrical properties for External Reference clock input:
+/- (1-10)Vpp AC sine wave
+/- (3.3-10Vpp square wave.
10-20MHz Frequency range.
Capacitive coupled input.
Must be referenced to GND pin.
TTL compatible. For example 0-3.3V or 0-5V will work.
[3] Electrical properties:
+/- (3.3- 10)Vpp pulse.
Minimum pulse width is 100ns seconds.
Capacitive coupled input.
Must be referenced to GND pin.
TTL compatible. For example 0-3.3V or 0-5V will work.
[4] Used for Asynchronous transmissions. When the mode is enabled, the Blue Heat/Net Sync will
transmit exactly one byte of data when the TX_TRIGGER input changes state. These same
signals are available on the individual DB25 port connectors.
[5] The input is edge sensitive and can be configured for negative or positive edge sensitivity.
[6] The input is level sensitive and can be configured for 1 or 0 level sensitivity.
