Vibration Monitoring IEPE Module Accelerometer Signal Converter

Removed from a decommissoned project. As far as I can tell this device is acting as a multi channel amplifier circuit for accelerometers that were vibration monitoring fan vibrations. With the output going to an analog input card on a PLC. 

As this device has no data sheets or information I cannot provide any further support or information on this product. 

An IEPE (Integrated Electronics Piezo-Electric) module is a device that allows you to connect IEPE sensors to voltage input measurement devices, essentially acting as a signal conditioner between the sensor and the measurement system. 
Here's a more detailed explanation:
What is IEPE?IEPE refers to a standard for piezoelectric sensors that have built-in electronics, converting the high-impedance signal of the piezoelectric sensor into a low-impedance voltage signal for easier transmission. 
Why use an IEPE module?
IEPE modules are designed to connect IEPE sensors to voltage measurement devices that don't natively support IEPE sensors. 
How it works:
The module receives the signal from the IEPE sensor and converts it into a voltage signal that can be read by the measurement device. 
Common Applications:
IEPE sensors are used to measure acceleration, force, or pressure, and IEPE modules are used in various industrial applications. 
Examples of IEPE modules:
Some examples of IEPE modules include the K-IEPE module by Influx Technology, the M32 IEPE Signal Conditioning Module, the CR9052IEPE module by Campbell Scientific, and the IEPE-6 6-Channel Voltage Input Module by Astronova. 
Other Names:
IEPE is also known as ICP, Piezotron, CCLD, IsoTron, or DeltaTron.