Cisco SPA-8XT3/E3 8-Port Clear Channel T3/E3 Shared Port Adapter

Overview

Demand for high-capacity corporate backbones, high-speed access to the global Internet, and trunking connections for service provider internetworking has led to a growth in Clear Channel T3/E3 connections that has outpaced all other types and speeds of leased lines. This growth places tremendous strain on service providers and network managers who must provision and manage new T3/E3 connections. The Cisco Clear Channel T3/E3 SPA for the Cisco ASR 1000 Series Aggregation Services Routers offers high-density, highly manageable T3/E3 line connectivity and termination. With integrated line-interface data service units (DSUs) that allow T3/E3 lines to be directly terminated on a Cisco router, the Cisco Clear Channel T3/E3 SPA simplifies T3/E3 line management, replaces provisioning costs, and makes valuable rack space available.

The Cisco Clear Channel T3/E3 SPA is designed to provide direct connectivity to T3/E3 lines for full-duplex communications at the T3 rate of 44.736 MHz or E3 rate of 34.368 MHz. The Cisco 8-Port Clear Channel T3/E3 SPA offers 8 ports and the ports are configurable as T3 or E3 on the same SPA. To support the widest range of operational environments and to offer the greatest flexibility in provisioning Clear Channel T3/E3 connections, the Cisco Clear Channel T3/E3 SPA takes a groundbreaking step and brings together proprietary subrate and scrambling features of T3/E3 Data Service Unit (DSU) vendors Quick Eagle Networks (formerly Digital Link), Larscom, ADC Kentrox, Adtran, and Verilink. Subrate support in the Cisco Clear Channel T3/E3 SPA maximizes the application of these products in service provider environments for tiered T3 services. By simultaneously supporting interoperability with a wide range of third-party DSU vendors, the Cisco Clear Channel T3/E3 SPA offers the flexibility to support installed equipment without committing customers to a proprietary solution.
The Cisco Clear Channel T3/E3 SPA is hot-swappable and supports service-transparent online insertion and removal (OIR), allowing removal of the SPA without affecting the interface processor and other SPAs.

Specifications

The Cisco SPA-8XT3/E3 8-Port Clear Channel T3/E3 Shared Port Adapter is a versatile networking component designed for high-density, manageable T3/E3 line connectivity and termination. Let’s dive into the details:

Purpose and Connectivity:

• • The SPA provides direct connectivity to T3/E3 lines for full-duplex communications.
  • It operates at the T3 rate of 44.736 MHz or the E3 rate of 34.368 MHz.
  • The adapter offers 8 ports, which can be configured as either T3 or E3 on the same SPA.

Key Features:

• • Integrated Line-Interface DSUs: The SPA includes built-in data service units (DSUs) that allow T3/E3 lines to be directly terminated on a Cisco router.
  • Subrate Support: It brings together proprietary subrate and scrambling features from various T3/E3 DSU vendors, enhancing flexibility for tiered T3 services.
  • Hot-Swappable: The SPA supports service-transparent online insertion and removal (OIR), allowing removal without affecting the interface processor and other SPAs.

Use Cases:

• • Corporate Backbones: Ideal for high-capacity corporate backbones.
  • Internet Access: Provides high-speed access to the global Internet.
  • Service Provider Internetworking: Used for trunking connections in service provider environments.

Compatibility:

• • The Cisco SPA-8XT3/E3 requires a SPA Interface Processor (SIP) card (either ASR-1000-SIP10 or ASR-1000-SIP40) on which the SPA card sits.
  • Compatible cables include CAB-T3E3-DINBNC-F, CAB-T3E3-DINBNC-M, and CAB-T3E3_DINDIN-F.

 

Datasheet