SPA‑2XT3/E3 Specifications
Cisco 2‑Port Clear Channel T3/E3 Shared Port Adapter
Manufacturer: Cisco
Manufacturer Model: SPA‑2XT3/E3
Product Line: Cisco Shared Port Adapters (SPA)
Product Series: Clear Channel T3/E3 2‑Port
Product Type: Interface / Port Adapter Module
Product Name: Cisco 2‑Port Clear Channel T3/E3 SPA Module
KEY FEATURES:
Port Count: 2 × Clear‑Channel ports (each configurable as either T3 or E3)
Interface Type: T3 (44.736 Mb/s) or E3 (34.368 Mb/s) over 1.0/2.3 RF connector (75‑ohm impedance)
Hot‑Swap Support: Yes — Online Insertion and Removal (OIR) supported
Channelization & DSU Integration: Supports full‑rate and sub‑rate services, integrated DSU functions, BERT pattern generation/detection, loopbacks, alarm monitoring
PERFORMANCE:
Maximum Data Rate per Port: Up to ~44.736 Mb/s for T3, ~34.368 Mb/s for E3
Power Consumption: Up to ~7.7 W for the 2‑port version (4‑port versions up to ~8.4 W)
Port Configuration: All ports must be configured uniformly (either all T3 or all E3)
ENVIRONMENTAL & RELIABILITY:
Operating Temperature: 5 °C to 40 °C
Storage Temperature: ‑40 °C to 70 °C
Operating Humidity: 5% to 85% RH
Storage Humidity: Up to 95% RH
Designed for carrier‑grade WAN access and network termination applications
PHYSICAL:
Form Factor: Plug‑in SPA module for compatible Cisco routers (SPA/I‑Flex architecture)
Dimensions: Height ~0.8 in (2.03 cm), Width ~6.75 in (17.15 cm), Depth ~7.28 in (18.49 cm)
Weight: ~0.75 lb (~0.34 kg)
COMPATIBILITY & NOTES:
Compatible with Cisco routers: e.g., Cisco 7600 Series, Cisco ASR 1000 Series, Cisco ASR 9000 Series, Cisco XR 12000 Series
Requires matching cabling (1.0/2.3 RF connectors or adapter to BNC) and appropriate line‑clocking or network clock
Ideal for networks requiring high‑density T3/E3 trunk connectivity, aggregation or access links
When purchasing used or refurbished: Check module condition, preferably confirm firmware compatibility, and ensure the slot in your chassis supports this SPA type
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