Extension board for NI 9651 (Marathon)


The Marathon is designed to control beam pumps to significantly reduce costs and increase oil production. It controls and diagnoses the beam pumps unit, calculates flow rate without need to install additional flow meter, builds and analyzes dynagraphs, measures electricity consumption, collects statistics, provides remote control and data acquisition by SCADA system, prevents malfunctions, displays dynagraphs and other operating parameters in a convenient graphical form.


  • Low price
  • Multitasking
  • Availability of Wi-Fi and 3G communication
  • Optically isolated digital and analog inputs
  • Ability of integration of custom designed boards
  • Operating temperature from -40 to +80 °С
  • Stable and reliable work 24/7

Technical Specifications

Digital inputs and outputs
Digital outputs 12
Digital universal inputs 16
Digital I/O for general purpose (DIO) 46
Digital inputs for the work with inductive sensors 2
Analog inputs and outputs
Analog inputs (differential) 1

Analog inputs (voltage/current) 

Analog outputs (current 4…20mA)  2
Analog outputs (voltage 0…10V) 
Power output (10V, current>15mA) 
Communication ports
RS 485 
USB 2.0 
Ethernet connector 1Gbit 
Ethernet connector 10/100Mbit 
Compatibility  IEEE 802.3 
Data exchange rate

Port 1 – 10/100 Mbit/s,
Port 2 – 10/100/100 Mbit/s,
both ports are with auto-negotiation

Maximum cable length  Approximately 100 m 
CAN port 
Connectors for digital inputs/outputs of general purpose (DIO) 
RS 232 
Power and operating requirements

External input supply voltage (separate connector) 

from 10,5 V to 15,5 V 
Operating temperature range  -40 to +75 С°