ZyXEL Communications MES3500-24 Benutzerhandbuch
Chapter 3 Hardware Overview
MES3500-24/24F User’s Guide
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2
When daisy-chaining further Switches ensure that the signal output pins you use are the same as
those you used when connecting to the first switch, as shown in the diagram below.
those you used when connecting to the first switch, as shown in the diagram below.
Figure 17
Daisy-chaining an External Alarm Sensor to Other Switches of the Same Model
3.2 LEDs
After you connect the power to the Switch, view the LEDs to ensure proper functioning of the
Switch and as an aid in troubleshooting.
Switch and as an aid in troubleshooting.
1
2
3
11 10
.........
1
2
3
11 10
.........
1
2
3
11 10
.........
Pin Assignments
Table 2
LED Descriptions
LED
COLOR
STATUS
DESCRIPTION
PWR
Green
On
The system is turned on.
Off
The system is off.
SYS
Green
On
The system is on and functioning properly.
Blinking
The system is rebooting and performing self-diagnostic tests.
Off
The power is off or the system is not ready/malfunctioning.
ALM
Red
On
A hardware failure is detected, or an external alarm is active.
Off
The system is functioning normally.
10/100 Mbps Fast Ethernet Ports (MES3500-24)
1 ~ 24
Green
Blinking
The system is transmitting/receiving to/from a 10 Mbps Ethernet
network.
network.
on
The link to a 10 Mbps Ethernet network is up.
Amber
Blinking
The system is transmitting/receiving to/from a 100 Mbps Ethernet
network.
network.
On
The link to a 100 Mbps Ethernet network is up.
Off
The link to an Ethernet network is down.
100 Mbps Fast SFP Ports (MES3500-24F)
1 ~ 24
Amber
On
The port has a successfule connection.
Off
No Ethernet device is connected to this port.
Blinking
This port is receiving or transmitting data.
Mini-GBIC Slots