64-3 Output circuit4-3-1 Encoder Output4-2-2 Alarm output4-4 Recommended receiving circuit4-4-1 Encoder signal4-4-2 LD Alarm signalA,B,Z-phase digitalLD monitorLD AlarmA,B,Z-phase digital outA/,B/,Z/-phase digital outLine driver: ISL32179E or equivalentLD alarm outputA,B-phaseA/,B/-phase ISL32177EISL32277E etcA,B-phase digital150ΩZ-phaseZ/-phase ISL32177EISL32277E etcZ-phase digital150Ω0.01~0.1uFTo 74LS14 etcTC75S56F (Comparator)