Messages and Troubleshooting

Table 8-2. Troubleshooting (2 of 2)

Symptom

Possible Cause

Solutions

 

 

 

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 Clear the message using the

under Self-Test

 

 

Clear command.

results.

 

 

 

 

 

H Contact your service

 

 

representative.

 

 

 

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.

 

 

 

Not receiving data;

H DDS line rate/speed has

H Verify that your subscriber loop is

DSU is not

changed.

running at 56 or 64 CC kbps.

responding.

H Excessive BPVs causing

H Verify that the DSU is set to the

 

 

DSU to become stuck in

same rate as your subscriber

 

Autobaud mode.

loop. (The DSU's rate is

 

H Excessive Loop Loss

displayed on the Network

 

Interface Status screen.)

 

causing DSU to become

 

 

 

stuck in Autobaud mode.

H If getting Excessive BPVs, verify

 

 

that you do not have a bad cable.

 

 

If the cable is good, contact the

 

 

network provider.

 

 

H If getting excessive Loop Loss

 

 

(dB) indications, install a higher

 

 

quality cable. For maximum

 

 

distances in LADS applications,

 

 

refer to Table F-3 in Appendix F.

 

 

H If the DDS Line Rate (Kbps) field

 

 

shows Autobaud, the DSU may

 

 

be stuck in Autobaud mode.

 

 

Configure Line Rate (Kbps) for

 

 

56 or 64 kbps.

 

 

H Run Loopback tests. Refer to

 

 

Tests Available in Chapter 7.

 

 

 

Power-Up Self-Test

The DSU has detected an

H Reset the DSU and try again.

fails. Only Alarm

internal hardware failure.

H Contact your service

LED is on after

 

 

representative.

power-up.

 

 

 

 

 

 

8-4

November 1997

7612-A2-GB20-10

Page 64
Image 64
Paradyne 7612 SNMP DSU manual Troubleshooting 2 Symptom Possible Cause Solutions, Tests Available in Chapter

7612 SNMP DSU specifications

The Paradyne 7612 SNMP DSU (Data Service Unit) is a robust and versatile device designed for effective communication in data networks. This device is particularly suited for businesses that require reliable connectivity to support their operations. The 7612 integrates advanced technologies that enhance performance, scalability, and ease of management.

One of the main features of the Paradyne 7612 is its support for SNMP (Simple Network Management Protocol), which allows for comprehensive monitoring and management of network devices. This capability ensures that network administrators can easily track performance metrics and troubleshoot issues in real time, thereby minimizing downtime and enhancing overall operational efficiency.

The 7612 also provides multiple interface options, including T1/E1 and fractional T1, enabling users to select the most suitable bandwidth for their specific requirements. With full duplex capabilities, the device can handle simultaneous data transmission and reception, ensuring efficient communication and high throughput.

In terms of security, the Paradyne 7612 incorporates features such as port security and access control lists (ACLs). These measures protect the network from unauthorized access, ensuring that sensitive data remains secure during transmission. Additionally, the DSU incorporates intelligent diagnostic features, such as loopback testing and error monitoring, enabling proactive identification and resolution of network issues.

The device is built with a modular design, allowing for easy upgrades and scalability as business needs grow. This flexibility ensures that organizations can adapt their network infrastructure without the need for significant overhauls or extensive downtime.

The Paradyne 7612 also boasts an intuitive web-based user interface, simplifying configuration and management tasks. Network administrators can access settings and monitor performance from any location, streamlining network management processes.

With a focus on reliability, the 7612 is designed to operate in various environmental conditions, offering features such as extended temperature ranges and robust construction, making it suitable for deployment in both indoor and outdoor settings.

In summary, the Paradyne 7612 SNMP DSU stands out in the realm of data communication devices with its advanced SNMP capabilities, versatile interface options, robust security features, modular design, and user-friendly management interface. These characteristics make it an ideal solution for enterprises seeking to maintain reliable, scalable, and secure data communication networks.