Serinus 44  User Manual  3.0 
 
 
 
Figure 13 – Multidrop RS232 Cable Example 
 
4.2  USB Communication 
This is ideal for irregular connection to a laptop running Ecotech’s Airodis software to download 
logged data and remotely control the instrument. Due to the nature of USB, this is a less reliable 
permanent connection as external electrical noise can cause USB disconnection errors on a data 
logger. 
For more information on making connections refer to Section 4.6.1.1. 
 
Note: Only the Advanced protocol is supported for USB communication.