Hardware Installations

2-2 LED Indicators

There are diagnostic LEDs located on the front panel of HME-421E/423E. They provide primary information on switch status as described in the table below.

LED Name

LED Color

LED Function

 

Green

Power is on.

PWR

Off

Power is off or no power is being supplied to the

 

switch.

 

 

 

Green

Power is on.

PWR1

Off

Power is off or no power is being supplied to the

 

switch.

 

 

 

Green

Power is on.

PWR2

Off

Power is off or no power is being supplied to the

 

switch.

 

 

 

 

One of the following errors occur:

 

Red

z

Power failure

Fault

z

UTP port failure

 

 

 

z

Fiber port failure

 

Off

None of the above mentioned errors occurs.

R.M.

Green

This switch unit is the Ring Master.

Off

This switch unit is NOT the Ring Master.

 

 

Green

The fiber port is linked.

LNK/ACT

Blinking

The port is transmitting or receiving packets from a

TX device.

 

 

 

Off

The fiber port is not linked.

 

Orange

The port is operating in full-duplex mode.

 

Blinking Orange

Collision of packets occurs.

 

Off

The port is in half-duplex mode or no device is

 

attached.

P1-P4

 

Green

The port is connected to a network.

 

 

Blinking Green

The port is transmitting or receiving packets from a

 

TX device.

 

 

 

Off

The port is not connected to a network.

2-3 RJ-45 Ports

HME-421E/423E has 4 10/100Mbps auto-sensing ports for 10Base-T or 100Base-TX devices connection. The UTP ports can auto-sense for 10Base-T or 100Base-TX connections. Auto MDI/MDIX function allows HME-421E/423E to connect to another switch or workstation without changing straight through or crossover cabling. See Cabling section for straight through and crossover cable schematic.

2-3.1 RJ-45 Pin Assignments

RJ-45 pin assignments as described in the table below:

Pin Number

Assignment

1

Tx+

2

Tx-

3

Rx+

6

Rx-

2-2

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Husky HME-423E, HME-421E user manual LED Indicators, RJ-45 Ports, LED Name LED Color LED Function, 1 RJ-45 Pin Assignments