ICP DAS USA PFN-2000 Series How To Update Firmware page 2

Step 3:
Please turn rotary switch to "E" and turn the
Note 1: PFN-2000 series module =>
S1A, S1B, S2B LED ON and S2A LED OFF
Note 2: Gateway and Converter =>
AP, ERR LED OFF and BOOT LED ON
"Power ON".