Messages and Troubleshooting

Troubleshooting

This DSU is designed to provide you with many years of trouble-free service. If a problem occurs, however, refer to Table 6-2 for possible solutions.

Table 6-2. Troubleshooting (1 of 2)

Symptom

Possible Cause

Solutions

 

 

 

Alarm LED is on.

One of several alarm

Refer to Health and Status

 

conditions exists. Health

Messages, Table 4-2, for

 

and Status displays the

recommended action.

 

alarm condition.

 

 

 

 

 

 

Cannot access the

The terminal is not set up

1.

Check the cable and

DSU via the ATI.

for the correct rate or data

 

connections.

 

format, or the DSU is

2.

Set up your terminal or PC

 

configured so it prevents

 

 

emulation as shown in

 

access.

 

 

 

Connecting to the Terminal Port

 

 

 

 

 

 

in Chapter 2.

 

 

3.

Power the DSU on and off and

 

 

 

try again.

 

 

 

 

Device Fail appears

The DSU detects an

H

Power the DSU off and on and

on the System and

internal hardware failure.

 

try again.

Test Status screen

 

H

Contact your service

under Self-Test

 

 

 

representative.

results.

 

 

 

 

 

 

 

 

An LED is not lit.

LED is burned out.

Run the Lamp test. If the LED in

 

 

question does not flash with the

 

 

other LEDs, then contact your

 

 

service representative.

 

 

 

No power, or the

The power cord is not

Check that the power cord is

LEDs are not lit.

securely plugged into the

securely attached at both ends.

 

wall receptacle and into the

 

 

 

rear panel connection.

 

 

 

 

 

 

 

The wall receptacle has no

H

Check the wall receptacle power

 

power.

 

by plugging in some equipment

 

 

 

that is known to be working.

 

 

H

Check the circuit breaker.

 

 

H

Verify that your site is not on an

 

 

 

energy management program.

 

 

 

 

Power supply has failed.

Replace power supply.

7510-A2-GB20-00

March 1997

6-3

Page 46
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Paradyne 727 manual Troubleshooting 1 Symptom Possible Cause Solutions

727 specifications

The Paradyne 727 is a cutting-edge piece of networking equipment that stands out for its robust performance and versatility in various technological environments. Designed primarily as a digital subscriber line (DSL) modem, the Paradyne 727 has gained significant traction among service providers looking to enhance their broadband offerings for residential and business customers.

One of the main features of the Paradyne 727 is its ability to support both Asymmetric Digital Subscriber Line (ADSL) and Very-high-bit-rate Digital Subscriber Line (VDSL) technologies. This dual compatibility allows for flexible deployment in different network infrastructures, whether in urban areas with high demand for broadband or in rural areas where DSL remains a feasible option. The device is capable of delivering high-speed internet access with downstream rates that can reach up to 24 Mbps for ADSL and up to 50 Mbps for VDSL, ensuring faster connectivity for users.

The Paradyne 727 is also equipped with advanced modulation technologies, such as discrete multitone modulation (DMT), which provides a superior noise immunity and allows for higher data rates over traditional DSL technologies. This capability makes it particularly beneficial in environments with varied signal quality. Moreover, the modem features an auto-sensing capability that helps it adjust to the best transmission parameters automatically, simplifying installation and maintenance for service providers.

Another significant characteristic of the Paradyne 727 is its user-friendly design. The device incorporates an intuitive web-based management interface that allows network administrators to efficiently monitor performance metrics, configure settings, and perform troubleshooting from a centralized location. This feature streamlines operations and minimizes downtime, which is crucial in maintaining service quality and customer satisfaction.

In addition to its performance and management features, the Paradyne 727 is built with security in mind. It supports both local authentication and RADIUS authentication, providing robust access control mechanisms to protect sensitive data and ensure that only authorized users can access the network. This emphasis on security contributes to the modem's appeal in enterprise settings, where data integrity is paramount.

With its comprehensive features, advanced technologies, and commitment to performance and security, the Paradyne 727 is a significant player in the world of broadband networking. Its adaptability makes it suitable for a wide range of applications, supporting the growing demand for high-speed internet access across various market segments.