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Cisco

Cisco NXN-GM | PTP Grandmaster NIC, hardware timestamping, 1PPS I/O, PCIe Gen3, nanosecond-class

SKU:NXN-GM

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Description

High-precision timing adapter enabling a server to operate as an IEEE 1588 PTP Grandmaster with hardware-based timestamping and 1PPS I/O for deterministic distribution of time. Ideal for latency-sensitive finance, broadcast, and TSN applications where traceable, stable time is critical.

Features

- PTP Grandmaster capability in a server-resident NIC
- Hardware timestamping for deterministic timing
- 1PPS I/O for external sync and distribution
- High-stability clock for low jitter and drift
- Designed for ultra-low-latency, time-sensitive environments

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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FAQs

Technical Specifications

FAQs

Q: Can this NIC serve as a PTP Grandmaster without an external GNSS receiver?
A: Yes, it can serve as a Grandmaster based on its local disciplined clock; for GNSS-disciplined time, connect an appropriate external reference via supported inputs.

Q: What timing I/O does the card provide?
A: 1PPS input and output for synchronization and distribution to external devices.

Q: What accuracy can I expect?
A: Nanosecond-class timing and timestamping under proper configuration and environmental conditions.

Q: Which PCIe slot is required?
A: A PCIe Gen3 slot is recommended; it will operate in a mechanically compatible x8 or x16 slot.

Q: Does it support standard PTP profiles?
A: It is designed for IEEE 1588v2 PTP; consult software release notes for specific profile support.

Technical Specifications

- Function: PTP Grandmaster clock on a PCIe NIC
- Time protocol: IEEE 1588v2 (PTP) support
- Timestamping: Hardware-assisted, nanosecond-class accuracy (setup-dependent)
- External timing I/O: 1PPS In/Out for disciplining and distribution
- Clocking: High-stability oscillator for low-jitter time
- Host interface: PCIe Gen3
- Form factor: Low-profile PCIe card (bracket options vary by kit)
- Use cases: Financial trading, broadcast, industrial TSN, compliance auditing
- Operating system: Vendor-supported Linux distributions (check release notes for compatibility)

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