User manual

8
Chapter 2 Structure
2.1 Front Panel
VP-4:
Figure 2.1 Front Panel of VP-4
Table 2.1 Front Panel of VP-4
LED Indicator
Function
POWER
Power LED indicator: 1. Lights in red when the device is working; 2. Does not light
when the device is powered off.
LINK
LINK LED indicator: 1. Normally lights in green when the network connection is
functioning properly; 2. Does not light when the network connection is abnormal.
Tx/Rx
Tx/Rx LED indicator: 1. Does not light when the network is not connected; 2. Blinks
in green when the data is transmitting / receiving; 3. Blinks at higher frequency
when the data for transmitting / receiving is larger.
2.2 Rear Panel