ADTRAN DDS-DP warranty Remote Provisioning and Diagnostics, Control Protocol

Models: DDS-DP

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Table 3. Latching Loopback Activation Sequence

Sequence

 

 

Number of

Byte Code

Received

Function

 

 

Bytes

 

 

 

 

 

 

Clear existing

Transition in

Minimum of

loopbacks

progress (TIP)

35 TIP bytes

 

X0111010

 

 

Identify device to

Loopback select

Minimum of

be looped

code (LSC)

35 LSC bytes

 

X0000101

- DS0

 

 

X1010101

- OCU

 

 

X0110001

- CSU

 

 

X1000001

- NIE

 

Prepare to loop;

Loopback enabled

Minimum of

send MAP code

(LBE)

 

100 LBE bytes

after 30 bytes

X1010110

 

 

Activate

Far-End voice

Minimum of

loopback

(FEV)

 

32 FEV bytes

 

X1011010

 

 

 

 

 

 

Minimum of 35 TIP bytes required to disable established latching loopback.

X = Don't Care bit

Table 4. Alternating Loopback Activation Sequence

Sequence

Received Bytes

Function

 

 

 

Active loopback

Four consecutive bytes of

 

specified loopback code

 

X0101010 - OCU

 

X0101000 - CSU

 

X0101100 - DSU

Maintain loopback and

Data byte alternating with

test for bit errors

loopback code

 

example:

 

XDDDDDD1/X0101010

Clear loopback

Four consecutive data bytes

 

without alternating loopback

 

code

 

 

X = Don't care bit

 

 

 

The TR DDS-DP will respond to a loopback command initiated at the TROCU-R as follows:

Pressing the TROCU-R LBK pushbutton once will initiate a loopback at the TR DDS-DP towards the customer. See Figure 6.

Channel Bank

 

Customer Premises

Alternating

 

Open 2-wire Loop

 

 

 

 

 

 

 

 

MOS 9Ah/ASC 9Eh

TR

TR

 

 

 

 

DDS

 

 

DSU

 

DP

DDS-R

 

 

 

 

 

Channel Bank

 

 

Customer Premises

 

 

 

 

 

 

 

 

 

 

Open 4-Wire Customer

 

 

 

 

 

Interface

 

TR

ASC 9Eh

 

 

 

ASC 9Eh

TR

 

 

 

DDS

 

 

DSU

 

DDS-R

 

DP

 

 

 

 

 

 

Figure 5. DDS Trouble Codes

This allows data to be sent from the remote end to test the local loop and the TROCU-R. This loopback is indicated by a flashing CUST LED on the TROCU-R and a solid CUST LED on the Total Reach DDS-DP.

Pressing the LBK pushbutton a second time initiates a loopback at the TROCU-R towards the 4-wire DDS (CPE) interface. See Figure 7.

A solid CUST LBK LED on the TROCU-R indicates a loopback at the TROCU-R towards the customer equipment.

Pressing the TROCU-R LBK pushbutton a third time disables all current latching loopbacks initiated by the TROCU-R LBK pushbutton.

If errors exist the loopbacks can help determine the source; either the local loop or the TROCU-R. During a remote end initiated loopback the Total Reach system transmits ASC 9Eh towards the network, indicating an out-of-service condition generated by the remote end as shown in Figures 6 and 7.

4.REMOTE PROVISIONING AND DIAGNOSTICS

Control Protocol

Remote access to provisioning and status information is accomplished using ADTRAN Digital System 6 Message protocol, defined in Control and Diagnostic Procedures Practice, Section 6032991-6. Digital System 6 is supported by the TPI 108/109 and 105 portable test set and is supported by Hekimian React 2001 Release 1.900 remote test system. The Total Reach DDS network elements comply with ANSI T1.107-1995, “ Digital Hierarchy Format Specifications Annex G” which allows remote provisioning, querying, and performance monitoring via in-band control of network elements.

61433105L2-5D

Section 61433105L2, Issue 4

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ADTRAN DDS-DP warranty Remote Provisioning and Diagnostics, Control Protocol, Sequence Received Bytes Function

DDS-DP specifications

ADTRAN DDS-DP, or Digital Data Services-Digital Processor, is a robust network access solution designed to deliver high-performance data connectivity. Employed primarily in telecommunications, DDS-DP provides businesses with a reliable means of transmitting digital data over traditional copper infrastructure. This versatile technology is essential for organizations that require uninterrupted access to critical information and communication networks.

One of the primary features of ADTRAN DDS-DP is its ability to support multiple data rates, enabling organizations to choose the speed that best suits their operational requirements. With standard data rates typically ranging from 56 Kbps to 1.544 Mbps, DDS-DP caters to a variety of applications including point-of-sale systems, polling and monitoring services, and data gathering for remote installations. This flexibility makes it a go-to option for businesses across different verticals.

The technology behind DDS-DP incorporates advanced modulation techniques that allow efficient transmission over existing copper lines. By leveraging the capabilities of Digital Subscriber Line (DSL) technology and Time Division Multiplexing (TDM), DDS-DP ensures a seamless flow of data, while minimizing latency and maintaining quality of service. This aspect is particularly crucial for businesses that rely heavily on real-time data communication, such as financial institutions or healthcare facilities.

ADTRAN DDS-DP also includes robust error correction features, enhancing data integrity during transmission. By employing techniques such as Forward Error Correction (FEC), the system can detect and correct errors on-the-fly, which is vital for maintaining communication reliability. The system is designed to operate in various environments, whether in a central office or distributed remote locations.

Another key characteristic of DDS-DP is its backward compatibility with existing systems, allowing organizations to upgrade without a complete overhaul of their infrastructure. This ensures that businesses can continue to utilize their current hardware while benefiting from enhanced performance and capabilities.

Furthermore, ADTRAN's commitment to customer support and ongoing software updates facilitates the long-term viability of DDS-DP, allowing businesses to adapt to changing demands and technological advancements over time. In summary, ADTRAN DDS-DP stands out as a resilient and adaptable solution for organizations seeking to optimize their digital communication strategy, making it an essential component of modern data networks.