Adtran 1500 Bedienungsanleitung PDF herunterladen (Seite 3)

61180009L1-5D Issue 4, May 2006 3

2. Hold the Dual LIU by the front panel while

supporting the bottom edge.

3. Align the Dual LIU card edges to the guide

grooved for the slot designated

LIU-A.

4. Insert the Dual LIU until the edge connector seats

firmly into the backplane.

5. Push the ejector in place to ensure the Dual LIU is

fully seated.

NOTE

An additional

LIU-B slot is also provided for

optional redundancy. For dual operation, only

Dual LIUs of the same software revision

should be installed.

When the Dual LIU first powers up it performs the

power up self-tests, which check the DRAM and

checksum. Once the power up self-test is complete, the

status LEDs will reflect the true state of the hardware.

Front Panel LEDs

The front panel LEDs provide status and alarm infor-

mation. See Table 2 for LED descriptions.

Front Panel Pushbutton

A pushbutton switch labeled

STATUS is accessible

from the front panel to aid in test and troubleshooting.

The

MONITOR TX and RX bantam jacks are provided

for T1 access.

NOTE

TX = Transmit (Out) and RX = Receive (In)

Table 2. Front Panel LEDs

Label Condition Description

Red

Yellow

Green

Flashing

Off

ON = T1-A in Red Alarm

ON = T1-A in Yellow Alarm

ON = T1-A Active

FLASHING = T1-A in Test

OFF = In Monitor Mode

Red

Yellow

Green

Flashing

Off

ON = T1-B in Red Alarm

ON = T1-B in Yellow Alarm

ON = T1-B Active

FLASHING = T1-B in Test

OFF = In Monitor Mode

RED

Red ON = Monitored T1 in Red Alarm

YEL

Yellow ON = Monitored T1 in Yellow Alarm

RCV

Red ON = Monitored T1 bipolar or logic error detected

REM

Green

Off

ON = Remotely Provisioned (Craft or Network)

OFF = Locally Provisioned (DIP Switches)

TEST

Yellow ON = Test Mode Active

MASTER

Green

Flashing

ON = Online Unit

FLASHING = Provisioning in progress. Failover not possible.

STATUS

Switch Momentary activation cycles through the T1s for monitoring purposes. Activating

the switch for two or more seconds will cause provisioning to toggle between local

and remote.

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