Site Information


 Loading... Please wait...
  • IT251 Impulse Divider
  • IT251 Dimensional Drawing

Motrona IT251 Impulse Divider & Level Converter for Incremental Encoders

0.70 LBS
In Stock
Current Stock:

Product Description

The IT251 Programmable Impulse Divider for incremental encoder signals TTL Differential input (A,/A, B,/B, Z,/Z) or HTL single-ended input (A, B, Z).  Level conversion from TTL/RS422 to HTL (10-30V) and vice versa.  Programmable Divider for error-free and position true division of quadrature encoder signals (A,B, 90°) Separate marker pulse divider with individual settings.  Push-Pull outputs for direct PLC interfacing.  For the 18-30Vdc power supply use the GDA18-24A 24Vdc/750mA.


Model Numbers


IT251 DIN Rail Mount Encoder Splitter & Dual Level Converter


Link to Detailed PDF Specifications


  • Level conversion from TTL / RS 422 to HTL 10 ... 30 V and vice versa 
  • Programmable divider for error- free and position-true division of quadrature encoder Signals (A / B / 90°) 
  • Separate marker pulse divider with individual settings 
  • 300 kHz of maximum frequency 
  • Push-pull outputs for direct PLC interfacing 
  • Single 18 ... 30Vdc supply
  • Impulse and frequency divider for incremental encoder signals
  • Error-free division of quadrature encoder signals, with adjustable ratio from 1:1  to 1:4096,  with separately adjustable divider for marker pulse
  • Level converter for incremental encoder signals A/B/Z to both directions 
    (TTL / RS422 to HTL and HTL to TTL / RS422, see drawing)
  • Includes also translation between various modes of indication of the direction of rotation
  • Max. input frequency 300 kHz
  • Power supply 18 - 30 VDC
  • Compact housing for DIN rail mounting



Circuit Diagram


IT251 Encoder Splitter Circuit Diagram


Ordering Information


DIVIDER  Inputs  Outputs 
IT 251 

2 Inputs A, /A, B, /B, Z, /Z

Input Level RS422 / TTL or HTL (individually selectable)

2 Ouputs Each A, /A, B, /B, Z, /Z

Output Level RS422 / TTL or/ HTL (individually selectable) 


Product Reviews

Write Review

This product hasn't received any reviews yet. Be the first to review this product!

Warranty Information

1 Year

Find Similar Products by Category