Instruction manual

1. Components Overview

Name Type Status Description

LINK/TR

LED: Green or

Orange

Indicates the

operating status of

the Ethernet port.

Indicates the operating status of the

Ethernet port.

Green: A link is established.

Blinking green: A frame is being sent

or received.

Orange: A failure has been detected.

Off: A link failure occurred

#3 #4

operation has stopped.

#3 #5

#1: A network interface unit can be turned off by the Inactivate operation from the

system operation panel or by entering a command from the operation terminal.

#2: If no system recovery is set, the network interface unit is turned off in the

following situations:

z When a failure occurred in the network interface unit (the STATUS LED turns

red, and then it turns off).

z When a failure occurred in a management and switching unit (when the

management and switching unit is not duplicated).

#3: When the STATUS LED is green.

#4: Cable disconnection is also included.

#5: Operation of an Ethernet port can be stopped by entering a command from the

operation terminal.

#6: Always turns off if the interface port LED is set to off. When an operation key on

the system operation panel is used, the LED lights up, and the operating status can

be checked. If no keys are used for 60 seconds, the LED turns off again.

NOTE

If no system recovery is set and a failure occurs in a Switch, the

Switch can stay stopped without recovering the failed part.

This function is supported by software version 10.3 and later.

(3) NH1G-24S

The NH1G-24S is a network interface unit with the following hardware specification:

z Ethernet port (1000BASE-X): 24 ports

NOTE

For information about the SFP transceivers supported by the Switch,

see 1.7.1 SFP.

 Front view

The front view is shown below.

For information about LEDs, see Table 1-15 LED indications.