• Cisco Catalyst 3850 switch stack in N540-12Z20G-SYS-A chassis
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Cisco

Cisco N540-12Z20G-SYS-A | NCS 540 Router, 20x 1G SFP, 12x 1G/10G SFP+, AC

N540-12Z20G-SYS-A

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Description

The NCS 540 is a 1RU, short-depth (25 cm) fixed-configuration service provider access and aggregation router. It runs Cisco IOS XR and is aimed at cost-effective mobile backhaul, 5G transport and access deployments, including indoor or outdoor cabinets where short depth and temperature hardening are required.

This AC-powered variant provides 20 x 1GE SFP ports and 12 x 1GE/10GE SFP/SFP+ ports, with forwarding performance of up to 160 Mpps. A 4-core 1.6 GHz x86 CPU is paired with 8 GB DRAM and 32 GB storage. It uses a single fixed AC power supply (90-265 V AC, 50-60 Hz) with fixed redundant fans and front-to-back airflow. Timing support includes SyncE, PTP (Class B) and BITS, 1pps, 10MHz and ToD interfaces.

Software is licensed through Right-to-Use Access Essentials or Access Advantage licences. Supported SFP and SFP+ optics are listed in the Cisco Transceiver Module Group compatibility matrix, and rack, wall and cable bracket accessories are available for the AC variant.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Environmentally hardened 1RU design with depth under 300 mm, suited to indoor or outdoor cabinets
- Precise frequency and phase/time synchronisation with SyncE and IEEE 1588 PTP
- Segment Routing (SR-MPLS and SRv6), MPLS, EVPN, VPLS L2VPN and L3VPN
- Class-based 3-level hierarchical QoS with deep packet buffers
- Low-latency forwarding, typically under 10 us
- Security with trust anchor infrastructure, secure boot, image signing and run-time defence
- MEF 3.0 compliant
- Model-driven programmability with NETCONF/gRPC, YANG, ZTP and third-party app hosting

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

FAQs

Technical Specifications

- Ports: 20 x 1GE SFP
- Ports: 12 x 1GE/10GE SFP/SFP+
- Forwarding performance: up to 160 Mpps
- CPU: 4-core 1.6 GHz x86
- Memory: 8 GB DRAM
- Storage: 32 GB
- Power supply: fixed single AC, 90-265 V AC, 50-60 Hz
- Fans and airflow: fixed redundant fans, front-to-back airflow
- Timing: SyncE, PTP (Class B)
- Timing interfaces: BITS, 1pps, 10MHz, ToD
- Form factor: 1RU, 1.72 in. x 17.3 in. x 9.84 in. (25 cm depth)
- Weight: 4.7 kg
- Operating temperature: -5 to +55 C
- Storage temperature: -40 to 70 C
- Operating humidity: 15% to 85% (non-condensing)
- Altitude: 0 to 13,000 ft
- Surge rating (IEC 61000-4-5): 2KV DM, 2KV CM
- Power consumption (NCS 540 family): minimum <100 W, typical <200 W, maximum 250 W
- Forwarding latency (NCS 540 family): typically <10 us
- Compliance: NEBS GR-63-CORE, GR-1089-CORE, GR-3108 Class I
- EMC: 47CFR Part 15 Class A, EN55022 Class A, AS/NZS CISPR22 Class A

FAQs

Q: Does this router need a software licence?
A: It runs Cisco IOS XR, with software licensed through Right-to-Use per-10G Access Essentials or Access Advantage licences. Essentials-to-Advantage upgrade options are available.

Q: What power does this variant use?
A: It has a single fixed AC power supply accepting 90-265 V AC at 50-60 Hz. The -D model is the DC variant.

Q: Which optics can I use in the SFP and SFP+ ports?
A: Supported optics are listed in the Cisco Transceiver Module Group (TMG) Compatibility Matrix for the NCS 540. The 20 SFP ports are 1GE and the 12 SFP/SFP+ ports run at 1GE or 10GE.

Q: How can this router be mounted?
A: Accessories for this AC variant include the N540-RCKMT-19-CLA, N540-RCKMT-23-CLA and N540-RKMT-ETSI-CLA rack mounts, the N540-CBL-BRKT-CL cable bracket and the N540-WALLMT-CLA wall mount.

Q: How does this model differ from the -D variant?
A: N540-12Z20G-SYS-A uses a fixed AC power supply, while N540-12Z20G-SYS-D is the DC model. Both offer 20 x 1GE and 12 x 1GE/10GE ports.

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