beautypg.com

Westermo SD-300 User Manual

Page 12

background image

12

6642-2201

12

6.4LED indicators

At power on the PWR immediatly lits and the other leds will run through a led test
sequence.

In the test sequence every led flashes twice, starting with SPD and ending with LINK
leds.

Indicators (LED)

Power (PWR)
Link (LINK) of every port
Speed (SPD) and duplex (DPX) of TX ports

LED

Status

Indication of

PWR

OFF

No internal power (external power not connected)

ON

Power OK

OFF

Data in = 1, Mark,VTD < -3V.

ON

Data in = 0, Space,VTD > +3V.

LINK

OFF

No Ethernet link
Cable not connected

ON

Good Ethernet link

Flash

Ethernet data is transmitted or received, traffic indication

SPD

OFF

10 Mbit/s

(TX only)

ON

100 Mbit/s

DPX

OFF

Half duplex

(TX only)

ON

ON Full duplex