Name:
SPA-2XOC3-ATM
- Description:
- 2-port OC-3c/STM-1 ATM Shared Port Adapter
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SPA-2XOC3-ATM Overview
SPA-2XOC3-ATM is an advanced ATM network card engineered for high-speed optical communications using OC-3 technology. Designed as a specialized ATM module, it delivers dual OC-3 channels at 155 Mbps per channel via SFP optical connectors, ensuring reliable data transport in telecom environments.
Ideal for integration into routers, switches, and servers in data centers and telecommunication systems, SPA-2XOC3-ATM supports ATM encapsulation over TCP/IP networks. Its PCIe form factor facilitates easy installation, making it a perfect choice for upgrading legacy ATM networks and expanding high-speed connectivity in mission-critical applications.
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SPA-2XOC3-ATM Specifications
| Product Type | Network Card |
| Module Type | ATM |
| Data Rate | OC-3 (155 Mbps) |
| Connector Type | SFP |
| Supported Protocols | ATM, TCP/IP |
| Form Factor | PCIe |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | 155 Mbps |
| Supported Features | Dual Channel Configuration, High Reliability |
| Power Consumption | 15W |
| Interface Ports | 2 x OC-3 Optical Ports |
| Expansion Slots | N/A |
| Product Name | SPA-2XOC3-ATM |
| Height | 1.5 inches |
| Width | 3.4 inches |
| Depth | 7.0 inches |
| Weight | 1.2 lbs |
SPA-2XOC3-ATM Use Case
Metro ISP Backbone Aggregation with SPA-2XOC3-ATM Shared Port Adapter
An Internet Service Provider integrates the SPA-2XOC3-ATM-2-port OC-3c/STM-1 ATM Shared Port Adapter into its regional edge router to terminate two 155 Mbps SONET circuits and support up to 256 PVCs. This setup enables tiered subscriber services with strict QoS enforcement and dynamic bandwidth allocation. Outcome: scalable 155 Mbps backbone aggregation, end-to-end SLA compliance, and optimized circuit utilization for reduced OPEX.
Enterprise Data Center Interconnect for Synchronous Replication
A global enterprise deploys the SPA-2XOC3-ATM-2-port OC-3c/STM-1 ATM Shared Port Adapter to provision dedicated ATM circuits between its primary and disaster-recovery data centers. Deterministic bandwidth, sub-2 ms path protection, and secure PVCs deliver real-time database replication and sub-second failover. Outcome: 99.999% link availability, predictable latency, and robust high-speed disaster-recovery capabilities.
Low-Latency Financial Trading Connectivity over ATM/SONET
A financial trading firm installs the SPA-2XOC3-ATM-2-port OC-3c/STM-1 ATM Shared Port Adapter to host constant bit-rate (CBR) OC-3c circuits for its algorithmic trading network. The adapter provides microsecond-level latency, minimal jitter and segregated PVC channels for order flow isolation. Outcome: superior trade execution performance, stringent compliance with exchange SLAs, and sustained competitive advantage.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco, Juniper, Arista, Dell, HP | POS Systems, Routers, Switches, Servers | Cisco | Cisco, Juniper, Arista, Dell, HP | Cisco / Dell / HP |
| Connector Type | SFP | RJ-45 | SFP / SFP+ | XFP | SFP+ |
| Data Rate | OC-3 (155 Mbps) | 1Gbps | 1Gbps (per SFP port) / 10Gbps (uplink ports) | 10Gbps | 16Gbps |
| Depth | 7.0 inches | N/A | N/A | N/A | 7.5 inches |
| Expansion Slots | N/A | N/A | N/A | N/A | PCIe |
| Form Factor | PCIe | PCIe | Modular | PCIe | PCIe |
| Height | 1.5 inches | N/A | N/A | N/A | 1.5 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | 2 x OC-3 Optical Ports | Ethernet | 24 SFP ports, 2 SFP+ uplink ports | XFP | Fibre Channel, SFP+ |
| Max Speed | 155 Mbps | 1Gbps | 10Gbps | 10Gbps | 16Gbps |
| Module Type | ATM | Ethernet Module | SFP / SFP+ | SFP+ | Fibre Channel |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 15W | N/A | N/A | N/A | 20W |
| Product Name | SPA-2XOC3-ATM | SPA-1XOC12-POS | WS-X6824-SFP-2TXL | SPA-1XTENGE-XFP | WS-F6700-DFC3CXL |
| Product Type | Network Card | Network Card | Network Module | Network Card | Fibre Channel Card |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Dual Channel Configuration, High Reliability | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Error Correction, Low Latency |
| Supported Protocols | ATM, TCP/IP | TCP/IP | TCP/IP | TCP/IP | Fibre Channel, TCP/IP |
| Weight | 1.2 lbs | N/A | N/A | N/A | 1.2 lbs |
| Width | 3.4 inches | N/A | N/A | N/A | 3.0 inches |
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Questions & Answers
Q
What is the Cisco SPA-2XOC3-ATM (SKU: SPA-2XOC3-ATM)?
A
The SPA-2XOC3-ATM is a 2-port OC-3c/STM-1 ATM Shared Port Adapter designed for Cisco routers to deliver high-performance ATM connectivity over SONET/SDH networks.
Q
What data rates does the SPA-2XOC3-ATM support?
A
The adapter supports OC-3c/STM-1 line rates of 155.52 Mbps per port, enabling up to 10 Gbps aggregate throughput in a 16-slot platform.
Q
Which ATM and network protocols are supported by this adapter?
A
The SPA-2XOC3-ATM supports AAL1, AAL2, AAL5, PVC, SVC, Q.2931 UNI signaling, OAM cells, and UNI/NNI in compliance with ITU-T standards.
Q
Is the SPA-2XOC3-ATM compatible with Cisco router series?
A
Yes. It is compatible with Cisco 7500, 7200, 7600, and 12000 series routers that support SPA Modular Interface Cards.
Q
How do I install the SPA-2XOC3-ATM in my router chassis?
A
Power down the router, insert the SPA-2XOC3-ATM into an available SPA slot, secure the module with the latching screws, and reboot the system.
Q
How can I configure and manage the SPA-2XOC3-ATM?
A
Use Cisco IOS CLI commands under the interface atm slot/port context and leverage Cisco Prime or SNMP for monitoring and alarm reporting.
Q
Does the SPA-2XOC3-ATM support SNMP for remote monitoring?
A
Yes. It supports SNMP v1/v2c/v3 for performance monitoring, fault management, and custom MIB support.
Q
What are the typical power and environmental specifications?
A
The module consumes approximately 15W, operates at 0° to 40°C ambient temperature, and requires 5% to 90% non-condensing humidity.
Q
What is the maximum number of ATM cells per second?
A
Each OC-3c/STM-1 port can handle up to 53,000,000 cells per second, ensuring wire-speed performance.
Q
Can I deploy the SPA-2XOC3-ATM in a high-availability configuration?
A
Yes. Pair it with Cisco redundancy features such as Cisco Stateful Switchover (SSO) for minimal traffic disruption.
Q
What distance can I cover over OC-3c/STM-1 with this adapter?
A
Distance depends on optical transceiver choice; typical ranges are up to 40 km with single-mode SFPs.
Q
Which SFPs are supported for the SPA-2XOC3-ATM?
A
It supports Cisco-approved OC-3c/STM-1 SFPs, including G.957 single-mode and multimode transceivers.
Q
How do I monitor link status and performance metrics?
A
Use the "show controllers atm" and "show interfaces atm" commands in Cisco IOS or SNMP MIB-II counters for real-time metrics.
Q
What warranty and technical support options are available?
A
Cisco offers a lifetime limited hardware warranty plus optional SMARTnet support for rapid replacement and 24/7 TAC access.
Q
How do I order replacement parts for the SPA-2XOC3-ATM?
A
Contact your Cisco reseller with SKU SPA-2XOC3-ATM and provide your router serial number to obtain a direct replacement.
Q
What key benefits does the SPA-2XOC3-ATM deliver for service providers?
A
It delivers reliable, scalable ATM transport, wire-speed performance, and extensive protocol support for carrier-grade services.