Cabling Requirements
Cabling for port 1 and port 3 connections must be 100BASE-T1 compliant, shielded or
unshielded twisted pair cable, with a maximum length of 15 m and cable impedance of 100 Ω
±10%. Cabling for port 2 and port 4 connections must be Cat 5e or higher Ethernet cable.
LEDs
LEDs on the left side of the front panel indicate Link and Activity on the 100BASE-T1
Automotive Ethernet ports. LEDs on the RJ45 connectors indicate Link, Activity, and
100 Mbit speed on the 100BASE-TX Ethernet ports.
Table 1. LED Indicators
LED
LED State
Behavior
POWER
On
Power on
Off
Power off
P1 LINK/ACT
Steady
Link established on port 1, no activity
Blinking
Link established on port 1, activity present
Off
No link established on port 1
P3 LINK/ACT
Steady
Link established on port 3, no activity
Blinking
Link established on port 3, activity present
Off
No link established on port 3
Port 2 LINK/ACT
Steady
Link established on port 2, no activity
Blinking
Link established on port 2, activity present
Off
No link established on port 2
Port 2 100
Steady
1
100 Mbit link speed selected on port 2
Off
2
10 Mbit speed selected on port 2
Port 4 LINK/ACT
Steady
Link established on port 4, no activity
Blinking
Link established on port 4, activity present
Off
No link established on port 4
1
100 Mbit link speed is the defauilt setting. This LED will be on steady even when no cable is
attached.
2
10 Mbit link speed is not supported. If this LED is off, packets will not pass through.
IVN-8561 Getting Started Guide
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© National Instruments
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