Patton electronic 3086 Operating Local Analog Loopback LAL-Serial Port Loop, Diagnostics, 137

Models: 3086

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Model 3086 G.SHDSL Integrated Access Device User Guide

9 • Diagnostics

 

 

Npimage

Key

Initbun

Im.conf

Tftpupdt.rbt

Tftpupdt.end

Script.bat

2.Connect the control (console) port of the unit to a PC.

3.Connect the Ethernet port to the appropriate device where the upload package will be stored.

4.On a Window 2000 or WinXP machine, open a Command Prompt and run the script. (The script will connect to the default 192.168.200.10 IP address). If using Win9x, a TFTP client will be needed.

5.The TFTP process takes about 90 seconds, the unit will reboot automatically when done.

Operating Local Analog Loopback (LAL)—Serial Port Loop

The Local Line Loopback (LAL) applies to serial port data traffic, it does not affect traffic from the Ethernet port. The local Loop test checks the operation of the local Model 3086, and is performed separately on each unit. Any data sent to the local Model 3086 in this test mode will be echoed (returned) to the user device (i.e, characters typed on the key-board of a terminal will appear on the terminal screen).

Figure 12. Local Line Loop

To perform a Local Analog Loopback test, follow these steps:

1.Move the front panel toggle switch UP to Local.

2.Verify that the data terminal equipment is operating properly and can be used for a test.

3.Perform a V.52 BER (bit error rate) test as described in secton “BIT Error Rate (V.52) Diagnostics” If the BER test equipment indicates no faults, but the data terminal indicates a fault, follow the manufacturer’s checkout procedure for the data terminal. Also check the interface cable between the terminal and the Model 3086.

Operating Remote Digital Loopback (RDL)—DSL Loop

The Remote Digital Loopback (RDL) test checks the performance of both the local and remote Model 3086s, as well as the communication link between them. Any characters originating at the serial port and sent to the remote Model 3086 in the test mode will be returned to the originating device (i.e, characters typed on the

Operating Local Analog Loopback (LAL)—Serial Port Loop

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Patton electronic 3086 manual Operating Local Analog Loopback LAL-Serial Port Loop, Diagnostics, 137