ADTRAN SHDSL E1 Operation, Test Capabilities, Inband Loopback Detection, Customer Port

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5. OPERATION

Test Capabilities

The SHDSL T1/E1 NTU has the following test capabil- ities:

•Self diagnostics

•Local loopbacks

•EOC initiated remote loopbacks

•Inband remote loopback detection (E1 mode only)

•Internal bit error rate tester (BERT)

Self Diagnostics

The SHDSL T1/E1 NTU performs self diagnostic tests of its Read Only Memory (ROM), Random Access Memory (RAM), LEDs, and non-volatile configuration setting upon power-up.

Local and Remote Loopbacks

For troubleshooting purposes, the SHDSL T1/E1 NTU provides three types of loopback tests.

1.Dual sided

2.Network

3.Customer

Inband Loopback Detection

Inband remote loopback response is supported on the E1 port. The SHDSL T1/E1 NTU supports V.54 and PN127 inband signalling protocols.

BERT

The SHDSL T1/E1 NTU contains a built-in Bit Error Rate Test (BERT). The BERT involves injecting and detecting a Pseudorandom Binary Sequence (PRBS) toward the network on the selected payload (i.e. G.703 or entire SHDSL payload). The PRBS used in the SHDSL T1/E1 NTU is PRS15 as defined in ITU-T 0.150 and 0.151. It is also known as 2e15 – 1 pattern.

Customer Port

The SHDSL T1/E1 NTU operates in either E1 mode or T1 mode.

E1 Mode

In E1 mode the port features are as follows:

•Carries information at the rate of 2.048 Mbps

•Uses CCS framed format with or without CRC-4

•Operates in either Alternate Mark Inversion (AMI) or High-Density Bipolar 3 (HDB3) line code

•Provides programmable timeslot idle pattern

•Supports ISDN-PRA V3 service

•Displays additional status information via a local VT100 management screen

See Table 5 for E1 port statistics definitions.

T1 Mode

In T1 mode the port features are as follows:

•Carries information at the rate of 1.544 Mbps

•Uses Superframe Format (SF) or Extended Super- frame Format (ESF)

•Operates in either Alternate Mark Inversion (AMI) or Bipolar w/8-Zero Substitution (B8ZS) line code

•Provides programmable timeslot idle pattern

•Monitors the Facility Data Link (FDL) for loopback commands

•Displays additional status information via a local VT100 management screen

See Table 6 for T1 port statistics definitions.

61225236L1-5A

Issue 1, August 2003

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Contents General L1-5A Issue 1, AugustRevision History DescriptionInstallation FeaturesCompliance Codes ComplianceInstructions for Installing the Module Shipping ContentsLED Indicators DB-9 Connector Pin DescriptionsProvisioning Front Panel LEDsWindows HyperTerminal Indication DescriptionTest Capabilities OperationInband Loopback Detection Customer Port$*+ Category Option Setting Default Configuration Options List= AMI B8ZS ESFE1 Port Statistics Definitions Statistic Framing Mode DefinitionSpecifications MaintenanceWarranty and Customer Service Shdsl T1/E1 NTU SpecificationsIssue 1, August

SHDSL E1 specifications

ADTRAN SHDSL E1 is a high-speed digital subscriber line technology that provides businesses with robust and reliable data communication solutions. SHDSL, or Single-pair High-speed Digital Subscriber Line, operates over traditional copper wiring and enables symmetrical data rates of up to 2.3 Mbps, making it ideal for both upstream and downstream data transmission. When combined with E1, which is a standard for digital transmission in telecommunications, the technology can support efficient voice and data services.

One of the main features of ADTRAN SHDSL E1 is its ability to leverage existing copper infrastructure, allowing organizations to benefit from high-speed connectivity without the need for extensive new installations. This is particularly valuable for businesses in areas where fiber-optic services may be limited or unavailable, thus promoting cost-effectiveness and accessibility.

ADTRAN’s SHDSL E1 product line incorporates advanced technologies that ensure reliable and efficient transmission. The technology employs advanced error correction techniques and dynamic rate adaptation, which automatically adjusts the data rate depending on line conditions. This capability provides stability and performance even in varying environmental circumstances, reducing the likelihood of service disruptions.

Another notable characteristic of ADTRAN SHDSL E1 is its support for multiple protocols, including Ethernet, T1, and E1, allowing seamless integration into diverse network environments. This versatility is essential for businesses looking to unify different communication services while optimizing their network infrastructure.

Additionally, ADTRAN equipment is designed with a focus on ease of management and deployment. The devices typically come equipped with user-friendly interfaces and management systems, empowering IT teams to monitor performance, configure settings, and perform diagnostics easily. This simplifies operational procedures and enhances the overall user experience.

In terms of scalability, ADTRAN's SHDSL E1 solutions can grow with an organization’s needs. As businesses expand and their data transmission requirements increase, they can upgrade their ADTRAN systems to accommodate higher bandwidths and more extensive networks without significant overhauls.

In conclusion, ADTRAN SHDSL E1 offers a powerful and efficient solution for businesses seeking reliable data communication over existing copper lines. With its combination of advanced technologies, multi-protocol support, ease of management, and scalability, it stands out as a viable option for organizations aiming to enhance their network capabilities without incurring substantial costs.
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