Ecotech Serinus 40 - Figure 10 - Serinus 25 Pin Microprocessor Board (with Default Jumpers Highlighted); Figure 11 - External 25 Pin I;O Individual Pin Descriptions

Serinus 40 User Manual 2.2
Page 66
Figure 10 – Serinus 25 pin microprocessor board (with default jumpers highlighted)
Figure 11 – External 25 pin I/O individual pin descriptions
CAUTION
The analog and digital inputs and outputs are rated to CAT I.
Exceeding 12VDC or drawing greater than 400mA on a single output or a total
greater than 2A across the 8 outputs can permanently damage the instrument
and void the warranty.