Cisco

Cisco 12DS3-SMB-B | 12x DS3/T3 (44.736 Mb/s) 75Ω BNC; ECC memory; 7300 line card

Cisco 12DS3-SMB-B | 12x DS3/T3 (44.736 Mb/s) 75Ω BNC; ECC memory; 7300 line card

SKU:12DS3-SMB-B

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Description

High-density 12-port DS3/T3 aggregation line card for 7300-series routers, ideal for service-provider and large enterprise T3 terminations. ECC-protected buffers enhance reliability for high-availability deployments.

Features

- Ultra-high density DS3 aggregation (12 ports per card)
- ECC-protected buffering for enhanced reliability
- Comprehensive T3 framing, alarms, and OAM
- Flexible clocking with line or internal options
- Carrier-grade performance monitoring and loopback testing

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

Technical Specifications

- Ports: 12x DS3/T3
- Line rate: 44.736 Mb/s per port
- Interface: 75Ω BNC coax (Tx/Rx pair per port)
- Framing: C-bit parity (CBR) and M13
- Line coding: B3ZS
- Clocking: line or internal
- Alarms/PM: LOS, LOF, AIS, RDI; per-port statistics
- Memory: ECC-protected packet buffers
- Platform compatibility: Cisco 7300 Series (SMB line-card slot)
- Use case: high-density T3 aggregation and backhaul

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