Canon R-1SL Instruction Manual page 6

Output circuit
4-3
Encoder Output
4-3-1
A,B,Z-phase digital
Alarm output
4-2-2
LD monitor
Recommended receiving circuit
4-4
Encoder signal
4-4-1
A,B-phase
A/,B/-phase
Z-phase
Z/-phase
LD Alarm signal
4-4-2
LD Alarm
Line driver： ISL32179E or equivalent
TC75S56F (Comparator)
0.01～0.1uF
150Ω
150Ω
A,B,Z-phase digital out
A/,B/,Z/-phase digital out
LD alarm output
A,B-phase digital
ISL32177E
ISL32277E etc
Z-phase digital
ISL32177E
ISL32277E etc
To 74LS14 etc
6