Zyxel IES-1248 EE [60/544] 100m auto sensing ethernet

Zyxel IES-1248 EE [60/544] 100m auto sensing ethernet
Chapter 3 Front Panel Connections
IES-1248-51/51A/53 User’s Guide
60
3.1.2 LEDs
The following table describes the LED indicators on the IES-1248.
3.2 1000/100M Auto-Sensing Ethernet
The IES-1248 has two 1000/100Mbps auto-sensing Ethernet ports. There are two factors
related to Ethernet: speed and duplex mode. In 1000/100Mbps Fast Ethernet, the speed can be
100Mbps or 1000Mbps and the duplex mode can be half duplex or full duplex. The auto-
negotiation capability makes one Ethernet port able to negotiate with a peer automatically to
obtain the connection speed and duplex mode that both ends support.
SFP 1, 2 Each of these Small Form-factor Pluggable (SFP) slots can house a mini GBIC
(Gigabit Interface Converter) transceiver.
USER 1-24, 25-48 Connect these Telco-50 connectors to subscribers 1-24 and 25-48 respectively.
CO 1-24, 25-48 Connect these Telco-50 connectors to the telephone company for subscribers
1-24 and 25-48 respectively.
Table 1 IES-1248 Front Panel Ports (continued)
CONNECTOR DESCRIPTION
Table 2 LED Descriptions
LED COLOR STATUS DESCRIPTION
PWR Green On The power is turned on.
Off The power is off.
SYS Green Blinking The system is rebooting and performing self-diagnostic tests.
On The system is on and functioning properly.
Off The system is not ready/malfunctioning.
ALM Red On There is a hardware failure, or there is ALM input.
Off The system is functioning normally.
1000/100 1,2 Yellow On The link to a 100 Mbps Ethernet network is up.
Blinking The link is transmitting/receiving 100 Mbps Ethernet traffics.
Off The link to a 100 Mbps Ethernet network is down.
Green On The link to a 1000 Mbps (1Gbps) Ethernet network is up.
Blinking The link is transmitting/receiving 1000 Mbps (1Gbps)
Ethernet traffics.
Off The link to a 1000 Mbps (1Gbps) Ethernet network is down.
SFP 1,2 LNK Green On The link to a 1000 Mbps (1 Gbps) Ethernet network is up.
Off There is not a link to a 1000 Mbps (1 Gbps) Ethernet network
or the 1000 Mbps network link is down.
SFP 1,2 ACT Green Blinking The system is transmitting/receiving Ethernet traffic.
Off The system is not transmitting/receiving Ethernet traffic.

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