Renishaw QUANTiC RTLC40-S Installation Manual page 30

Recommended signal termination
Digital outputs
Readhead
A B Z+
Cable Z = 120R
0
A B Z−
Standard RS422A line receiver circuitry.
The capacitors are recommended for improved noise immunity.
Single-ended alarm signal termination
(not available with 'A' cable termination)
Readhead
100R
E−
4k7
30 QUANTiC RKLC40-S incremental linear encoder system
™
0 V
Customer
220 pF
electronics
120R
220 pF
0 V
5 V
Customer
4k7
electronics
1k8
100nF
Analogue outputs
V V V +
0 1 2
120R
V V V −
0 1 2
NOTE: 120R termination on the analogue output signals is essential for correct AGC operation.
Limit output
(not available with 'A' cable termination)
5 V to 24 V
R
V V P Q
p q
NOTE: Select R so that maximum current does not exceed 20 mA. Alternatively, use a suitable
relay or opto-isolator.