Chapter 8 ____________________________________________________________ Technical Data 
 
VAISALA______________________________________________________________________ 253 
Communication Modules 
RS-485 Module 
Table 90  Dual-Isolated RS-485 Communication Module DSI486 
Specifications 
Property Description/Value 
Channels 
   Channel A 
   Channel B 
 
RS-485 
RS-232 or RS-485 
SDI SDI-12 
Isolation Galvanic 
Operating modes  Two 2-wire RS-485 and SDI-12 
2-wire RS-485, RS-232, and SDI-12 
Power consumption 
   Idle 
   Operating 
 
2.8 ... 4.3 mA 
10.6 ... 12.4 mA 
Connection distance (max.)  1500 m (4900 ft.) 
Temperature (operating)  -40 ... +60 °C (-40 ... +140 °F) 
Temperature (storage)  -50 ... +70 °C (-58 ... +158 °F) 
Humidity  0 ... 100 %RH 
 
Ethernet Communication Module DSE101 
Table 91  Ethernet Communication Module DSE101 
Specifications 
Property Description/Value 
Operating mode  10Base-T 
Power consumption 
(transmitting) 
50 mA at 12 V 
Temperature  Normal: -40 ... +70 °C (-76 ... 158 °F)  
Extended: -60 ... +70 °C (-76 ... 158 °F) 
Humidity  0 ... 100 %RH