技术细节
| SPA在线插入和删除（OIR） |
Y |
| 支持管理信息基本原则 |
RFC 2496 MIB, T1.231 MIB |
| 支持共享端口适配器（SPA） |
Serial/Channelized |
| 支持服务质量（QoS） |
Y |
| 每个模块的SPA插架数量 |
8 |
认证标准
| 安全 |
UL 60950, CSA 22.2 No.60950, IEC 60950, EN 60950, AS/NZS 3260, TS001 |
| 电磁兼容性 |
FCC Part 15 (CFR 47), ICES 003, CISPR 22, AS/NZS CISPR22, VCCI, EN55022, EN55024, EN300 386, EN50082-1, EN61000-6-1 |
8-Port Clear Channel T3/E3 Shared Port Adapter
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.
You can use the Cisco Clear Channel T3/E3 SPA to provide direct customer access or network-to-network connections. In some cases, T3/E3 offers the only high-speed service to remote points of presence (POPs) or customer installations that cannot obtain optical channelized service.
The Cisco Clear Channel T3/E3 SPA supports three different Layer 2 encapsulations of packets:
- Point-to-Point Protocol (PPP)
- High-Level Data Link Control (HDLC)
- Frame Relay
By supporting these three encapsulations, the Cisco Clear Channel T3/E3 SPA enables the Cisco ASR 1000 Series Routers to offer high-speed, IP-based direct access, or IP-over–Frame Relay deployments.
