Cisco SPA-4XCT3/DS0 Cisco Shared Port Adapter (SPA)
Brand: Cisco | Category: Accessories & Components
SKU: CSC-SPA-4XCT3DS0 | Part #: SPA-4XCT3/DS0 | MPN: SPA-4XCT3/DS0
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About the Cisco SPA-4XCT3/DS0 Cisco Shared Port Adapter (SPA)
The Cisco SPA-4XCT3/DS0 Cisco Shared Port Adapter (SPA) from Cisco is enterprise-grade Accessories & Components hardware built for data centers. It features CT3/DS0 interface. The Cisco SPA-4XCT3/DS0 is a four-port Channelized T3/DS0 Shared Port Adapter engineered for high-density TDM aggregation on Cisco carrier-grade routing platforms. Each port supports a full CT3 interface, enabling granular DS0-level channel access across all 28 T1 channels contained within each T3 stream — delivering up to 672 individual DS0 timeslots per adapter. The SPA architecture integrates with Cisco's SPA Interface Processor (SIP) slots, allowing non-disruptive inserti Available in brand new condition. Cisco accessories & components products are trusted by enterprises and data centers worldwide. Available from Omnixon Global. Contact our sales team to request a quote.
Technical Specifications
| Brand | Cisco |
| Category | Accessories & Components |
| SKU | CSC-SPA-4XCT3DS0 |
| Part Number | SPA-4XCT3/DS0 |
| Condition | New |
| Interface | CT3/DS0 |
| Manufacturer Part Number | SPA-4XCT3/DS0 |
| Product Type | Shared Port Adapter (SPA) |
| Number of Ports | 4 |
| Interface Type | Channelized T3 (CT3) with DS0 visibility |
| T3 Line Rate | 44.736 Mbps per port |
| DS1 Channels per T3 Port | 28 |
| DS0 Channels per T3 Port | 672 |
| Total DS0 Channels (all ports) | 2,688 |
| Supported Encapsulations | PPP, HDLC, Frame Relay (per channel group) |
| T3 Framing Modes | C-bit Parity, M13 |
| T1 Framing Modes | ESF (Extended Superframe), SF (D4 Superframe) |
| Line Coding | B3ZS (T3), AMI / B8ZS (T1) |
| Clock Source Options | Internal, Line, Through |
| Physical Connector | BNC (T3) |
| Form Factor | Shared Port Adapter (SPA) — SIP-slot compatible |
| Compatible Platforms | Cisco 7600 Series, Cisco ASR 1000 Series (SIP-based slots) |
| Software Requirement | Cisco IOS with appropriate channelized T3 feature support |
| Hot-Swap Support | Yes (OIR — Online Insertion and Removal) |
Frequently Asked Questions about Cisco SPA-4XCT3/DS0 Cisco Shared Port Adapter (SPA)
What does the Cisco SPA-4XCT3/DS0 Cisco Shared Port Adapter (SPA) do?
The Cisco SPA-4XCT3/DS0 Cisco Shared Port Adapter (SPA) is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.