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Troubles shooting
Verify that is using the right power cord/adapter (DC 24-
power adapter with DC output higher than 48V, or it may damage this device.
Select the proper UTP/STP cable to construct the user network. Use unshielded
twisted-pair (UTP) or shield twisted-pair (STP) cable for RJ-45 connections that
Category 5e/above cable for 1000Mbps connections. Also be sure that the length of
any twisted-pair connection does not exceed 100 meters (328 feet).
Diagnosing LED Indicators: To assist in identifying problems, the switch can be
easily monitored through panel indicators, which describe common problems the
user may encounter and where the user can find possible solutions.
If the power indicator does not light on when the power cord is plugged in, you may
have a problem with power cord. Then check for loose power connections, power
losses or surges at power outlet. If you still cannot resolve the problem, contact the
local dealer for assistance.
If the LED indicators are normal and the connected cables are correct but the
s.
95
Appendix A
RJ-45 Pin Assignment
RJ-45 Pin Assignments
The UTP/STP ports will automatically sense for Fast Ethernet (10Base-T/100Base-TX
connections), or Gigabit Ethernet (10Base-T/100Base-TX/1000Base-T connections).
Auto MDI/MDIX means that the switch can connect to another switch or workstation
without changing straight through or crossover cabling. See the figures below for straight
through and crossover cable schematic.
10 /100BASE-TX Pin outs
With10/100BASE-TX cable, pins 1 and 2 are used for transmitting data, and pins 3 and 6
for receiving data.
RJ-45 Pin Assignments
Pin Number
Assignment
1
Tx+
2
Tx-
3
Rx+
6
Rx-
[NOTE]
-
The table below shows the 10/100BASE-TX MDI and MDI-X port pin outs.
Pin Number
MDI-X Signal Name
MDI Signal Name
1
Receive Data plus (RD+)
Transmit Data plus (TD+)
2
Receive Data minus (RD-)
Transmit Data minus (TD-)
3
Transmit Data plus (TD+)
Receive Data plus (RD+)
6
Transmit Data minus (TD-)
Receive Data minus (RD-)
Summary of Contents for IPES-3408 Series
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