1、Smart Conversion: This signal converter module can convert TTL, EIA422, 423 differential input signal to NPN, PNP, HTL, TTL output signal. 2、Reliable in Work: High conversion efficiency, quick response, supports for screw or rail installation, with 4 level lightning protection. 3、Good Application: Used to convert the differential signal of the encoder and scale into a single ended signal for PLC high speed counter. 4、Practical to Use: Can also be applied to NPN to PNP, PNP to NPN level conversion, which will better satisfy your working needs with high performance. 5、Quick to Install: Light in weight and compact in size as well, the 3 channel signal converter is easy to install between the encoder and counter.