Portable USB Aggregation TAP
USR4524-MINI - Installation Guide
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Page 3
LEDs
The USR4524-MINI has 4 LED indicators - 2 for each port as shown to the
right.
LED
Status
Meaning
LNK
ON
Link is active
FLASHING
Link is active and packets are flowing
OFF
Link is not active
LFP A
LFP B
LFP
Sync enabled
ON
OFF
Network speed of ports A/B is 1G
OFF
ON
Network speed of ports A/B is 100M
OFF
OFF
Network speed of ports A/B is 10M
Sync disabled
LFP enabled
ON
OFF
Link A failure is detected
OFF
ON
Link B failure is detected
OFF
OFF
Link failure is not detected
Sync disabled
LFP disabled
OFF
OFF
LFP is disabled
LFP
A
B
LNK LFP
LNK
Operating Notes:
•
The USR4524-MINI operates in aggregation mode, it is important to consider the link utilization on the network links. If the
combined bidirectional traffic over the network ports exceeds the speed of the monitoring devices, loss of the traffic through
the monitoring ports will occur.
•
At the default settings, the network ports on the USR4524-MINI are set to 1G speed. If these ports are connected to
networking devices with manual speed settings, confirm that the devices on either side of the TAP are at the same speed. For
optimal results set all connected networking devices to AUTO speed negotiation.
•
For up to 1 Gbps speeds, use Cat 5 or better cable with a maximum length
between network devices (not including the TAP) of 100 meters.
•
The TAP ethernet ports use Auto-MDI/MDI-X, so either crossover cables or
straight cables may be used.
•
If power is lost on the USR4524-MINI, internal relays on the network ports will
close and allow traffic to continue to pass through. The monitor port will not
transmit traffic while the device is powered off.
•
Supports jumbo frame sizes up to 9,216 bytes.
Network Failsafe
LFP
A
B
LNK LFP
LNK
A
B
Network Ports
(Front)
Monitor Port
(Back)