Maintaining DNT2Mi

 

Table 13.

Alarms

 

 

 

 

 

Alarm

Q1 message

Front panel

Description

source

 

message

 

 

 

 

 

Port n

BER > 1E-6 (1E-3)

Bit error rate worse than the set limit in port 1, 2, or 3

 

 

 

 

 

Loss of incoming

No incoming

DTE off or not connected to the DTE interface adapter

 

signal

signal

of port 1, 2, or 3

 

 

 

 

 

Blocked from use

 

Timeslot allocation mismatch. The number of timeslots

 

 

 

allocated to the port does not match with the speed

 

 

 

used in the line.

 

 

 

 

 

Test mode

CT140 ON

DTE is driving circuit 140 (RL) active in port 1, 2, or 3

 

 

 

 

 

 

CT141 ON

DTE is driving circuit 141 (LL) active in port 1, 2, or 3

 

 

 

 

 

 

Remote test

Remotely controlled digital loop in port 1, 2, or 3

 

 

 

 

 

–

No adapter

The DTE interface adapter not in place in port 1, 2, or 3

 

 

 

 

 

AIS 2M

AIS

G.704 AIS message in port 1, 2, or 3

 

 

 

 

 

Loss of frame

Framing lost

G.704 framing lost in port 1, 2, or 3

 

alignment

 

 

 

 

 

 

 

CRC multiframe

CRC MFA lost

G.704 multiframe alignment lost in port 1, 2, or 3

 

alignment lost

 

 

 

 

 

 

 

End to end frame

V.110 frame lost

V.110 framing lost in port 2 or 3

 

loss

 

 

 

 

 

 

 

Far-end alarm

Bit 3 (A-bit) of the frame not containing the frame

 

 

 

alignment signal

 

 

 

 

Line

Loss of frame

Framing lost

Line frame synchronisation lost (G.704)

 

alignment

 

 

 

 

 

 

 

BER > 1E-6 (1E-3)

Bit error rate worse than the set limit

 

 

 

 

 

No incoming line

No line signal

Line failure or remote equipment is faulty or switched

 

signal

 

off

 

 

 

 

 

Test mode

–

Line in test mode

 

 

 

 

Equipment

Synch. clock fault

Failure in synchronisation source, for example line

 

 

 

signal missing when the line timing mode has been

 

 

 

selected.

 

 

 

 

7.3 Testing

DNT2Mi tests can be controlled via the front panel or using Q1 menus.

DN01145897

© Nokia Corporation

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Issue 2-0 en

Nokia Proprietary and Confidential

 

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Nokia DNT2Mi sp/mp user manual Testing, Alarms
Page 50 Page 52

DNT2Mi sp/mp specifications

The Nokia DNT2Mi SP/MP is a sophisticated and versatile networking device that integrates advanced features tailored for modern telecommunication needs. Designed for both service providers and enterprise environments, this device is a notable addition to Nokia's extensive line of networking equipment.

One of the standout characteristics of the DNT2Mi SP/MP is its adaptability to a range of deployment scenarios. This networking solution supports multiple access technologies, allowing operators to address diverse customer requirements with ease. It is particularly well-suited for merging fixed and mobile networks, which enhances operational efficiency and provides a seamless user experience.

In terms of connectivity, the DNT2Mi SP/MP features multiple Gigabit Ethernet ports, offering high-speed data transmission. This capability is essential for businesses requiring robust internet connections and ensures the device can handle high traffic volumes without compromising performance. The integrated quality of service (QoS) mechanisms enhances bandwidth management, allowing for prioritized traffic routing that is critical for applications sensitive to latency, such as voice over IP (VoIP) and video streaming.

Another notable feature is the DNT2Mi's comprehensive security measures. The device supports advanced encryption protocols and network access controls to safeguard sensitive data and ensure compliance with industry regulations. This emphasis on security is crucial in today’s landscape, where data breaches can significantly impact business operations and reputation.

Moreover, the Nokia DNT2Mi SP/MP is designed with scalability in mind. Its modular architecture enables operators to incrementally expand their networks without significant overhaul, hence accommodating future growth and evolving technological demands. The system's intuitive management interface simplifies configuration and monitoring, providing operators with the tools necessary for effective network management.

Additionally, the device supports advanced analytics and reporting capabilities, enabling operators to gain insights into network performance and user behavior. This feature is instrumental for network optimization and ensuring service level agreements (SLAs) are consistently met.

In summary, the Nokia DNT2Mi SP/MP stands out as a powerful and flexible networking solution that meets the demands of both service providers and enterprises. With its cutting-edge technology, robust security, and scalability, the DNT2Mi SP/MP is poised to play an essential role in the future of communications infrastructure.
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