ZyXEL Communications IES-1248-51A, User Manual

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Chapter 3 Front Panel Connections
IES-1248-51V User’s Guide
54
3.1.2 Front Panel LEDs
The following table describes the LED indicators on the front panel of the IES-
1248-51V.
SFP 1, 2 Each of these Small Form-factor Pluggable (SFP) slots can house a
mini GBIC (Gigabit Interface Converter) transceiver.
TEST IN, TEST
OUT Use these RJ-45 ports to connect external equipment for conducting
metallic line tests on the IES-1248-51V’s ADSL ports.
Use the TEST IN port for testing internal POTS circuits, and the TEST
OUT port for testing the external wire loop to the customer’s phone.
ADSL 1-24, 25-48 Connect these Telco-50 connectors to subscribers 1-24 and 25-48
respectively.
Table 3 IES-1248-51V Front Panel Ports (continued)
CONNECTOR DESCRIPTION
Table 4 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
traffic.
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 traffic.
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.