SDMO R 340 U User And Maintenance Manual page 38

A lit LED indicates:
Alarm activated (flashing yellow).
1
Fault found (flashing red).
2
Module on (green, on continuously).
3
USB key connection (HOST): file transfer between USB key and TELYS and vice versa.
1
Connection for microcomputer (DEVICE):
2
file transfer between PC and TELYS and vice versa,
main module power supply.
Protective cover.
3
1 2
Figure 6.5 : Description of the LEDs
Figure 6.6: Close-up of USB ports
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