TTL modeConnection of TTL encoders with or without zero pulseFig.7: Connection of TTL encoders with zero pulse in 1-channel modeConnection instructionsIn TTL mode the inverse inputs are not connected.When using an encoder without zero pulse C, the terminal points for the C track are not connected.Connection of TTL counters/pulse generators with or without zero pulseFig.8: Connection of TTL counters/pulse generators with zero pulse in 1-channel modeConnection instructionsIn TTL mode the inverse inputs are not connected.If a counter/pulse generator is connected, the B track determines the counting direction.Input B̅ is not connected.When using a counter/pulse generator without zero pulse C, the terminal points for the C track are not connected.