ZyXEL Communications MES3500-24, Руководство пользователя

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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.
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.
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.
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.
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