SPA-2XT3/E3 - Cisco ASR 9000 Series Shared Port Adapter Overview
SPA-2XT3/E3 - Cisco ASR 9000 Series Shared Port Adapter is a genuine edge and wide-area routing product from Cisco, a global name in networking whose platforms are used by enterprises, service providers and data-center operators alike. Belonging to the Cisco ASR 9000 Series family, the SPA-2XT3/E3 unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
From a specification standpoint, it offers 2 ports for client, server or uplink connectivity. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
Typical deployments include branch and campus WAN connectivity, service-provider edge and MPLS deployments, and secure remote-site interconnect. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “Cisco ASR 9000 Adapter SPA-2XT3/E3 2-port Clear Channel T3/E3 Shared Port Adapter”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the SPA-2XT3/E3. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise WAN
Branch and campus routing with advanced services.
Service Provider
Edge routing for ISP and MPLS deployments.
Data Center
Interconnect core and aggregation layers reliably.
Buying a Pre-Owned SPA-2XT3/E3
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
SPA-2XT3/E3 Specifications | |
Product compatibility | • Cisco 7304 Router • Cisco 7600 Series Routers • Cisco 12000 Series Routers • Cisco ASR 9000 Series Router • Cisco XR 12000 Series Routers |
Port density per SPA | 2- and 4-port options |
Physical Interface | • 1.0/2.3 RF connector (75-ohm impedance) • 1.0/2.3 RF to BNC adapter cable option |
Protocols | Serial encapsulations: • HDLC • PPP, RFC 1662 • Frame Relay, RFC 1490 |
Features and functions | • Up to 4 independent T3 or E3 ports configurable as either all T3 or all E3 only • Full-duplex connectivity at T3 rate (44.736 MHz) or E3 rate (34.368 MHz) • Subrate and scrambling support of Quick Eagle Networks (formerly Digital Link), Larscom, ADC Kentrox, Adtran, and Verilink DSUs • Internal or network clock selectable per channel • Line and payload loopback capabilities: – Local and remote loopback at the T3 level – Response to embedded loopback commands – Insertion of loopback commands into transmitted signal Bit-error-rate-testing (BERT) pattern generation and detection per channel – Selectable pseudorandom pattern up to 32 bits long, including all 0’s, all 1’s, 215, 220, 220 QuasiRandom Signal Sequence (QRSS), 223, alternating 0’s and 1’s – 32-bit error-count and bit-count registers – Fully independent transmit and receive sections – Detection of test patterns with bit error rates up to 10-2 • 24-hour history maintained for error statistics and failure counts, at 15-minute intervals • 16- and 32-bit cyclic redundancy check (CRC); 16-bit default |
T3-specific features | C-bit or M23 framing • Binary 3-zero substitution (B3ZS) line coding • T3 far-end alarm and control (FEAC) channel support • Compliant with T3 pulse mask per ANSI T1.102-1993 • Maintenance data link (MDL) • Line build-out up to 450 feet (135 meters) • Alarm monitoring – Alarm indication signal (AIS) – Loss of signal (LOS) – Out of frame (OOF) – Far-end receive failure (FERF) • Performance data collection – Line coding violation (LCV) – Framing bit errors (F- or M-bit errors) – P-bit error counts – C-bit error counts – Far-end block error (FEBE) counts |
E3-specific features | G.751, or G.832 and unframed G.703 framing • High-density bipolar with three zeroes (HDB3) line coding • Compliant with E3 pulse mask • Software-configurable E3 national service bits • Alarm monitoring – Alarm indication signal (AIS) – Loss of signal (LOS) – Out of frame (OOF) – Far-end receive failure (FERF) • Performance data collection – Line coding violation (LCV) – Framing-pattern errors – FEBE counts |
MIBs | RFC 2496 MIB (T3 MIB) and T1.231 MIB |
Network management | Simple Network Management Protocol (SNMP) |
Physical specifications | • Weight: 0.75 lb (0.34 kg) • Height: 0.8 in. (2.03 cm) (single height) • Width: 6.75 in. (17.15 cm) • Depth: 7.28 in. (18.49 cm) |
Power | • 2-port: 7.7W maximum • 4-port: 8.4W maximum |
Environmental specifications | • Operating temperature: 41 to 104°F (5 to 40°C) • Storage temperature: –38 to 150°F (–40 to 70°C) • Operating humidity: 5 to 85% relative humidity • Storage humidity: 5 to 95% relative humidity |
