Rev. 1.5
12
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3.2.4 Ethernet connector
Figure 3-2: Ethernet Connector Pin Assignment
This is the standard NIC configuration. You need a 1:1-cable to connect a to a HUB, or a
cross-over cable to connect to another NIC (e.g. a computer).
There is no automatic signal crossing like with some routers.
3.2.5 USB connector
Pin 1: VCC
Pin 2: USB
–
Pin 3: USB +
Pin 4: GND
Figure 3-3: USB Connector Pin Assignment
This is the standard USB connector type A.
The USB connection is galvanic isolated from the system to prevent ground loops.
3.2.6 Status LED
This multi-color LED shows the global status of the system:
•
YELLOW Standby state (the system power supply is off)
•
GREEN
System power is on, all measurement values are in limit
•
RED
System switched off because of any failure
3.2.7 ON / OFF Soft Switch
The soft switch is used to switch the system power supply (push the swi
tch to the “ON” or
positi
on “OFF”).