B&B Electronics USR604 - Manual - Manual (Page 23)

Section 5 - Hardware Installation
Page 23 of 45 Document Number: USR60x-0812m
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LED Indicators
USR602 converters include five LED indicators; USR604 converters
include nine LED indicators. In both models one indicates the presence
of power; the others indicate transmit and receive data present on
each port.
Figure 144: USR602 LED Indicators
Figure 155: USR604 LED Indicators
LED Function Color Indicates
Power Green Presence of power
Port 1 Rx Blinking Green Data being received on Port 1
Port 1 Tx Blinking Yellow Data being transmitted on Port 1
Port 2 Rx Blinking Green Data being received on Port 2
Port 2 Tx Blinking Yellow Data being transmitted on Port 2
Port 3 Rx Blinking Green Data being received on Port 3
Port 3 Tx Blinking Yellow Data being transmitted on Port 3
Port 4 Rx Blinking Green Data being received on Port 4
Port 4 Tx Blinking Yellow Data being transmitted on Port 4