VDL200 is an Ethernet-connected data logger for continuous monitoring systems. It provides high-accuracy measurements from up to 2 detachable humidity, temperature, and carbon dioxide probes. Suitable applications include real-time measurements in environments where wired connections are preferred. VDL200 is compatible with the Vaisala viewLinc Enterprise Server software.
VDL200 is powered from the Ethernet connector using Power over Ethernet (PoE). If the network does not provide PoE, a separate PoE power supply must be used. Single-use 1.5 V AA size batteries are used as a temporary backup power source when PoE power is not available.
VDL200 maintains accurate time by synchronizing with a Network Time Protocol (NTP) server. VDL200 must be able to synchronize with an NTP server, otherwise it cannot store and send measurement data.
The following ports are used in the communication between VDL200 and the servers:
- TCP port 8883 (viewLinc Enterprise Server)
- UDP port 123 (NTP servers)