User`s guide
Table Of Contents
- Contents
- About This Guide
- Introduction
- Installation
- Start-Up
- Configuration
- Displays
- Statistics
- Device Management
- Dial Function
- Firmware Download
- Reports
- Session
- Platform/Network Performance Monitor
- Hard Disk and System Recommendations
- NMS Windows Conventions
- Record and Device Locks
- Cabling Requirements
- Data Input Sheets
- Glossary
- Index
Device Management
7-10
6700-A2-GY31-70
July 1999
Local Loopback
Choose Local Loopback from the Test pull-down menu to put the device in an
Analog Loopback mode. For local devices only, this test connects the local
analog transmitter to the local analog receiver.
If desired, select Pattern (BERT) to cause a bit error rate test (BERT) pattern to
be transmitted and received while monitoring for errors. If you select Pattern
(BERT), the test time (Duration) appears. To change the test time, choose either
the up arrow to increase the time or the down arrow to decrease the time. The
test time can be changed from 30 to 900 seconds (15 minutes) in 10-second
increments. Refer to
Range Field
in Appendix A,
NMS Windows Conventions
, for
more details on using this field.
At the completion of the test, any Pattern test results obtained appear in the lower
portion of the window. See
Pattern (BERT)
on page 7-13 for a detailed
description of the test parameter fields.
The following examples show a running Local Loopback test with Pattern
selected. If Pattern (BERT) was not selected, choose the Abort button or the
Abort Test command from the Test pull-down menu to halt the test.
Local Loopback Window for Analog-Type Devices
Local Loopback Window for Digital-Type Devices