Cisco Network Convergence System 540 Medium Density Routers Data Sheet
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The Cisco Visual Network Index predicts that by 2023, 5G speeds will be 13 times higher than the average mobile connection and 66% of the global population will have internet access. There will be nearly 30 billion devices/connections by 2023 – 45% of those will be mobile and average broadband speeds will rise from 46 Mbps to 110 Mbps. With millions of users and devices connecting to the network, the demands on the service provider network will not be limited to higher bandwidth at lower operating costs but will also require the capabilities to support new applications such as pervasive mobile broadband, massive IoT, tactile internet, smart city and virtual reality.
The Cisco Network Convergence System 540 Medium Density Routers (NCS 540) are designed for cost-effective delivery of next-generation services and applications. These routers are temperature-hardened, high-throughput, small form factor, low-power-consumption devices suitable for both outdoor and indoor deployments. With in-built trust anchor hardware infrastructure and anti-counterfeit protection along with software enabled security features, NCS 540 is most trusted and secured platform. They are powered by the industry-leading carrier-class version of Cisco IOS XR software designed for operational efficiency and service agility. Cisco IOS XR software offers advanced features such as programmability, application awareness, network visibility, and automation. The Cisco NCS 540 series of routers is an intelligent converged access platform which enables service providers to deliver next-level business and entertainment experiences.
● 1 RU small form factor with depth <300mm
● Side-to-side or front-to-back airflow
● Environmental hardened, suitable for deployments in indoor or outdoor cabinets
● Low power consumption, minimum <100W, typical <200W, maximum 250W
● Versatile Ethernet interface options: 10/100/1000M, 1/10/25/40/100G
● Low latency forwarding, typically <10 µs
● Precise frequency and phase/time synchronization using the latest industry standards
● Integrated GNSS receiver in some model
● Rich Quality of Service capabilities for different SLAs
● Security-Trust Anchor infrastructure, secure boot, image signing, run-time defense
● MEF 3.0 Compliant
● Excellent manageability
● Flexible consumption model
● Third-party app hosting
Cisco NCS 540 Medium Density Router Family
Table 1. Model comparison
| Chassis PID |
N540-24Z8Q2C-SYS N540-24Z8Q2C-M |
N540-ACC-SYS N540X-ACC-SYS (Conformal Coated) |
N540X-16Z4G8Q2C -A N540X-16Z4G8Q2C –D |
N540X-12Z16G-SYS-A N540X-12Z16G-SYS-D |
N540-28Z4C-SYS -A N540-28Z4C-SYS –D |
N540-12Z20G-SYS -A N540-12Z20G-SYS -D |
N540X-16Z8Q2C–D |
| CPU Memory Storage |
4-core 1.5Ghz x86 CPU 32GB DRAM 128GB storage |
4-core 1.5Ghz x86 CPU 16GB DRAM 128GB storage |
8-core 1.7GHz x86 CPU 8GB DRAM 32GB storage |
4-core 1.6GHz x86 CPU 8GB DRAM 32GB storage |
8-core 1.7GHz x86 CPU 8GB DRAM 32GB storage |
4-core 1.6GHz x86 CPU 8GB DRAM 32GB storage |
8-core 1.7GHz x86 CPU 8GB DRAM 32GB storage |
| Interfaces |
24x 1GE/10GE 8x 1GE/10GE/25GE 2x 40GE/100GE |
24x 1GE/10GE 8x 1GE/10GE/25GE 2x 40GE/100GE |
4x 1GE RJ-45 (10/100M) 16x 1GE/10GE 8x 1GE/10GE/25GE 2x 40GE/100GE |
4x 1GE RJ-45 (10/100M) 12x 1GE 12x 1GE/10GE |
28x 1GE/10GE 4x 40GE/100GE |
20x 1GE 12x 1GE/10GE |
16x 1GE/10GE 8x 1GE/10GE/25GE 2x 40GE/100GE |
| Performance |
Up to 300 Mpps |
Up to 300 Mpps |
Up to 300 Mpps |
Up to 160 Mpps |
Up to 300 Mpps |
Up to 160 Mpps |
Up to 300 Mpps |
| Power Supplies Fans Airflow |
2 hot-swappable AC/DC power supplies provide 1+1 redundancy 4 modular fans provide 3+1 redundant system cooling Front-to-back airflow |
2 hot-swappable AC/DC power supplies provide 1+1 redundancy 4 modular fans provide 3+1 redundant system cooling Front-to-back airflow |
Fixed dual redundant DC power supplies Fixed single AC power supply Modular Fan Tray with redundant fans Side-to-side Airflow (right to left) |
Fixed dual redundant DC power supplies Fixed single AC power supply Fixed redundant fans Side-to-side Airflow (right to left) |
Fixed dual redundant DC power supplies Fixed single AC power supply Fixed redundant fans Front-to-back airflow |
Fixed dual redundant DC power supplies Fixed single AC power supply Fixed redundant fans Front-to-back airflow |
Fixed dual redundant DC power supplies Modular Fan Tray with redundant fans Side-to-side Airflow (right to left) |
| Temperature Range |
I-Temp: -40°C to +70°C at 1,000ft +65°C at 6,000ft +55°C at 13,000ft |
I-Temp: -40°C to +70°C at 1,000ft +65°C at 6,000ft +55°C at 13,000ft Conformal coated SKU option for hot humid conditions |
I-Temp: -40°C to +70°C at 1,000ft +65°C at 6,000ft +55°C at 13,000ft Conformal coated SKU for hot humid conditions |
I-Temp: -40°C to +70°C at 1,000ft +65°C at 6,000ft +55°C at 13,000ft Conformal coated SKU for hot humid conditions |
C-Temp: -5°C to +55°C at 6,000ft +40°C at 13,000ft |
C-Temp: -5°C to +55°C at 6,000ft +40°C at 13,000ft |
I-Temp: -40°C to +70°C at 1,000ft +65°C at 6,000ft +55°C at 13,000ft Conformal coated SKU for hot humid conditions |
| Surge Rating As per IEC 61000-4-5 |
AC: 1kV DM, 2kV CM DC: 1kV DM, 1kV CM |
AC: 1kV DM, 2kV CM DC: 1kV DM, 1kV CM |
AC: 2KV DM, 2KV CM DC: 1KV DM, 2KV CM |
AC: 2KV DM, 2KV CM DC: 1KV DM, 1KV CM |
AC: 2KV DM, 2KV CM DC: 1KV DM, 1KV CM |
AC: 2KV DM, 2KV CM DC: 1KV DM, 1KV CM |
AC: 2KV DM, 2KV CM DC: 1KV DM, 2KV CM |
| Timing |
SyncE, PTP Internal GNSS receiver Interfaces: 1pps, 10MHz, ToD, antenna for GNSS Class B |
SyncE, PTP Internal GNSS receiver Interfaces: 1pps, 10MHz, ToD, antenna for GNSS Class B |
SyncE, PTP Internal GNSS receiver Interfaces: BITS, 1pps, 10MHz, ToD, antenna for GNSS Class C |
SyncE, PTP Internal GNSS receiver Interfaces: BITS, 1pps, 10MHz, ToD, antenna for GNSS Class C |
SyncE, PTP Interfaces: BITS, 1pps, 10MHz, ToD Class B |
SyncE, PTP Interfaces: BITS, 1pps, 10MHz, ToD Class B |
SyncE, PTP Internal GNSS receiver Interfaces: BITS, 1pps, 10MHz, ToD, antenna for GNSS Class C |
| Physical Specification |
1RU Depth: 26 cm 1.72 in. x 17.3 in. x 10.1 in. Weight: 5.9 kg |
1RU Depth: 26 cm 1.72 in. x 17.3 in. x 10.1 in. Weight: 5.9 kg |
1RU Depth: 28 cm 1.72 in. x 17.3 in. x 11.02 in. Weight: 5.5 kg |
1RU Depth: 25 cm 1.72 in. x 17.3 in. x 9.84 in. Weight: 6.0 kg |
1RU Depth: 25 cm 1.72 in. x 17.3 in. x 9.84 in. Weight: 4.7 kg |
1RU Depth: 25 cm 1.72 in. x 17.3 in. x 9.84 in. Weight: 4.7 kg |
1RU Depth: 28 cm 1.72 in. x 17.3 in. x 11.02 in. Weight: 5.5 kg |
| NEBS GR-63-CORE and GR-1089-CORE |
Compliant |
Compliant |
Compliant |
Compliant |
Compliant |
Compliant |
Compliant |
| NEBS GR-3108 |
Designed to meet Class III when installed in sealed cabinets |
Designed to meet Class III when installed in sealed cabinets |
Designed to meet Class III when installed in sealed cabinets |
Designed to meet Class III when installed in sealed cabinets |
Compliant to Class I |
Compliant to Class I |
Designed to meet Class III when installed in sealed cabinets |
Software feature support on NCS 540 in Cisco IOS XR:
Table 2. Software feature support in Cisco IOS XR
| Description |
Specification |
| Layer 2 |
Layer 2 forwarding and bridging Bridge Domains (BD) Ethernet Flow Point (EFP) IEEE 802.1Q VLANs and Q-in-Q Ethernet Link Aggregation Group (LAG) Link Aggregation Control Protocol (LACP) 802.3ad G.8032 Spanning tree Jumbo frames on all ports |
| Layer 3 |
IPv4 and IPv6 unicast routing Layer 3 interfaces: physical interfaces and sub-interfaces Virtual Routing and Forwarding (VRF) Open Shortest Path First (OSPFv2, OSPFv3) Intermediate System to Intermediate System (ISIS, ISISv6) Multiprotocol Border Gateway Protocol (MP-BGP) Equal-Cost Multipath (ECMP) Bidirectional Forwarding Detection (BFD) Virtual Router Redundancy Protocol (VRRP) Integrated Routing Bridging (IRB) with Bridge Virtual Interface (BVI) Generic Routing Encapsulation (GRE) |
| MPLS |
Label switching (LER, LSR) Label Distribution Protocol (LDP) BGP Labeled Unicast (BGP-LU) MPLS Traffic Engineering with RSVP-TE Point-to-point L2VPN – Static, T-LDP, EVPN-VPWS Multipoint L2VPN – VPLS, EVPN L2/L3 EVPN with Anycast IRB 6PE, 6VPE IP Loop-Free Alternate (LFA) Fast Reroute (FRR) RSVP-TE Fast Reroute (FRR) Flex-Algo |
| Segment Routing (SR) |
Segment Routing with MPLS data plane (SR-MPLS) Segment Routing with IPv6 data plane (SRv6) ISIS, OSPF, BGP extensions to segment routing BGP Egress Peering Engineering (BGP-EPE) Segment Routing Traffic Engineering (SRTE) Segment Routing Path Computation Element (SR-PCE) Topology Independent Loop-Free Alternate (TI-LFA) Segment Routing On-Demand Next-hop (SR-ODN) Advanced OAM- SR Performance Monitoring |
| Multicast |
IPv4 and IPv6 multicast routing PIM-SM, PIM-SSM IGMPv3, MLDv2 mLDP mVPN P2MP-TE |
| Quality of Service (QoS) |
Class-based 3-level Hierarchical QoS Virtual Output Queueing (VOQ) Policing, Shaping Multi-level priority queuing Classification based on L2/L3/L4 fields Remarking Weighted Random Early Detection (WRED) Deep packet buffer |
| Timing |
SyncE with ESMC Integrated GNSS receiver IEEE 1588-2008 PTP T-GM, T-BC, T-TSC G.8265.1, G.8275.1, G.8275.2 G.8273.2 Class B/C |
| Security |
Control-plane and management plane protection Local Packet Transport Services (LPTS) Authentication, Authorization, and Accounting (AAA) Terminal Access Controller Access-Control System Plus (TACACS+) Secure Shell (SSH) Layer 3 ingress and egress ACLs for IPv4 and IPv6 Layer 2 ingress ACLs Unicast Reverse Path Forwarding (Unicast RPF) |
| OAM |
CDP, LLDP, ICMP, DHCP Relay IP SLA MPLS OAM Ethernet OAM: CFM, Y.1731 DM/SLM TWAMP H/W based timestamping Y.1564 Model/Event Driven Telemetry Netflow SPAN/ERSPAN |
| Manageability |
CLI SNMP MIB NETCONF/gRPC (XML, JSON, GPB) YANG models (native, open: OpenConfig, IETF) RPM-based SW infrastructure Zero-Touch Provisioning (ZTP) with iPXE 3rd party application hosting |
Please refer to Transceiver Module Group (TMG) Compatibility Matrix for the NCS 540 Series supported transceivers.
The NCS 540 Series Router also supports the Cisco DDoS Edge Protection solution.
Add leading DDoS protection directly to the NCS 540 Series Router to detect and block DDoS attacks on-box cost-effectively, without any impact on application latency.
DDoS edge protection can be leveraged for mobility traffic (GTP) and other traffic (IPv4/v6, MPLS, etc.) depending on the use case for the NCS 540 Series Router deployment.
The following platforms are supported:
● N540-ACC-SYS (16GB)
● N540X-ACC-SYS (16GB)
● N540-24Z8Q2C-SYS (32GB)
● N540X-16Z4G8Q2C-D
● N540X-16Z4G8Q2C-A
● N540X-16Z8Q2C-D
● N540-28Z4C-SYS-D
● N540-28Z4C-SYS-A
● N540X-12Z16G-SYS-D
● N540X-12Z16G-SYS-A
● N540-12Z20G-SYS-D
● N540-12Z20G-SYS-A
Learn more about Cisco DDoS Edge Protection.
Table 3. Environment
| Description |
NCS 540 Router |
| Normal operating temperature |
Industrial temperature: –40°C to +70°C (1,000 ft.), +65°C (6,000 ft.), +55°C (13,000 ft.) Commercial temperature: –5°C to +55°C (6,000 ft.), +40°C (13,000 ft.) |
| Nonoperating (storage) temperature |
–40 to 70°C (–40 to 158°F) |
| Operating humidity |
All variants of NCS 540: 5% to 95% (noncondensing) except N540-28Z4C-SYS-A/D, N540-12Z20G-SYS-A/D: 15% to 85% (noncondensing) |
| Storage (relative) humidity |
5% to 95% at 40°C per NEBS GR-63-Core |
| Altitude |
0 to 13,000 ft. |
| Power |
Worldwide ranging AC (90–265V; 50–60 Hz) Worldwide ranging DC (–40V to –72V) |
Regulatory standards compliance
Table 4. Regulatory standards compliance
| Specification |
Description |
| Regulatory compliance |
Products should comply with CE markings according to directives 2004/108/EC and 2006/95/EC |
| Safety |
UL 60950-1 Second Edition CAN/CSA-C22.2 No. 60950-1 Second Edition EN 60950-1 Second Edition IEC 60950-1 Second Edition AS/NZS 60950-1 GB4943 |
| EMC standards |
47CFR Part 15 (CFR 47) Class A AS/NZS CISPR22 Class A CISPR22 Class A EN55022 Class A ICES003 Class A VCCI Class A EN61000-3-2 EN61000-3-3 KN22 Class A CNS13438 Class A |
| EMC immunity |
EN55024 CISPR24 EN300386 KN 61000-4 series |
| ETSI |
ETS/EN 300 119 Part 4 ETS/EN 300 019 - Storage: Class 1.2, Transportation: Class 2.3, ETS/EN 300 753 |
| RoHS |
The product is RoHS-6 compliant with exceptions for leaded-ball grid-array (BGA) balls and lead press-fit connectors |
Table 5. Ordering information
| Router PID |
N540-24Z8Q2C-SYS |
N540-ACC-SYS |
N540X-ACC-SYS |
N540X-16Z4G8Q2C-A N540X-16Z4G8Q2C-D |
N540X-12Z16G-SYS-A N540X-12Z16G-SYS-D |
N540-28Z4C-SYS-A N540-28Z4C-SYS-D |
N540-12Z20G-SYS-A N540-12Z20G-SYS-D |
N540X-16Z8Q2C-D |
| Description |
NCS 540 24x1/10GE, 8x10/25GE, 2x100GE chassis |
NCS 540 24x1/10GE, 8x10/25GE, 2x100GE chassis |
NCS 540 24x1/10GE, 8x10/25GE, 2x100GE conformal coated chassis |
Cisco NCS 540 System with 16x10G+4x1G Cu+8x25G+2x100G, AC Cisco NCS 540 System with 16x10G+4x1G Cu+8x25G+2x100G, DC |
Cisco NCS 540 System with 12x1G SFP + 4x1G Cu + 12x10G AC Cisco NCS 540 System with 12x1G SFP + 4x1G Cu + 12x10G, DC |
Cisco NCS 540 System with 28x10G+4x100G, AC Cisco NCS 540 System with 28x10G+4x100G, DC |
Cisco NCS 540 System with 20x1G+12x10G, AC Cisco NCS 540 System with 20x1G+12x10G, DC |
Cisco NCS 540 System with 16x10G+8x25G+2x100G, DC |
| Power Supplies Fans Accessories |
Power Supply: N540-PWR400-A N540-PWR400-D Fan: N540-FAN Rackmount for AC variant: N540-RCKMT-19 N540-RCKMT-23 N540-RKMT-ETSI Cable Brackets: N540-CBL-GD-19 |
Power Supply: N540-PWR400-A N540-PWR400-D Fan: N540-FAN Rackmount for AC variant: N540-RCKMT-19 N540-RCKMT-23 N540-RKMT-ETSI Cable Brackets: N540-CBL-GD-19 |
Power Supply: N540-PWR400-A N540-PWR400-D Fan: N540-X-FAN Rackmount for AC variant: N540-RCKMT-19 N540-RCKMT-23 N540-RKMT-ETSI Cable Brackets: N540-CBL-GD-19 |
Fan Tray: N540-X-BB-FAN Rackmounts for DC variant: N540-RCKMT-19-EGD N540-RCKMT-23-EGD N540-RKMT-ETSI-EGD Rackmounts for AC variant: N540-RCKMT-19-EGA N540-RCKMT-23-EGA N540-RKMT-ETSI-EGA Cable Brackets: N540-CBL-BRKT-EG |
Rackmounts for DC variant: N540-RCKMT-19-ACD N540-RCKMT-23-ACD N540-RKMT-ETSI-ACD Rackmounts for AC variant: N540-RCKMT-19-ACA N540-RCKMT-23-ACA N540-RKMT-ETSI-ACA Cable Brackets: N540-CBL-BRKT-AC |
Rackmounts for DC variant: N540-RCKMT-19-CLD N540-RCKMT-23-CLD N540-RKMT-ETSI-CLD Rackmounts for AC variant: N540-RCKMT-19-CLA N540-RCKMT-23-CLA N540-RKMT-ETSI-CLA Cable Brackets: N540-CBL-BRKT-CL N540-WALLMT-CLA |
Rackmounts for DC variant: N540-RCKMT-19-CLD N540-RCKMT-23-CLD N540-RKMT-ETSI-CLD Rackmounts for AC variant: N540-RCKMT-19-CLA N540-RCKMT-23-CLA N540-RKMT-ETSI-CLA Cable Brackets: N540-CBL-BRKT-DN N540-WALLMT-CLA |
Fan Tray: N540-X-BB-FAN Rackmounts for DC variant: N540-RCKMT-19-EGD N540-RCKMT-23-EGD N540-RKMT-ETSI-EGD Rackmounts for AC variant: N540-RCKMT-19-EGA N540-RCKMT-23-EGA N540-RKMT-ETSI-EGA Cable Brackets: N540-CBL-BRKT-EG |
| Software |
XR-6.5-AC-TRK TRK-6.5-54 |
XR-6.5-AC-TRK TRK-6.5-54 |
XR-6.5-AC-TRK TRK-6.5-54 |
XR-7.0-AC-TRK TRK-7.0-54 |
XR-7.0-AC-TRK TRK-7.0-54 |
XR-7.0-AC-TRK TRK-7.0-54 |
XR-7.0-AC-TRK TRK-7.0-54 |
XR-7.3-K9-AC-TRK TRK-7.3-27-54L-K9 |
Ordering information for software licenses available on NCS 540
Table 6. Ordering information for software licenses
| Product ID (PID) |
Description |
| ESS-AC-10G-RTU-1 |
Access Essentials SW Right-to-Use v1.0 per 10G |
| ADV-AC-10G-RTU-1 |
Access Advantage w/o Essentials SW RTU v1.0 10G |
| ADN-AC-10G-RTU-1 |
Access Advantage w/ Essentials SW RTU v1.0 10G |
| ESS-ADN-AC-10G-RT |
Access Essentials to Advantage Upgrade RTU per 10G |
| ESS-AC-10G-SIA-3 |
Access Essentials SIA 10G 3-5 year term |
| ESS-AC-10G-SIA-5 |
Access Essentials SIA 10G 5-10 year term |
| ADV-AC-10G-SIA-3 |
Access Advantage w/o Essentials SIA 10G 3-5 year term |
| ADV-AC-10G-SIA-5 |
Access Advantage w/o Essentials SIA 10G 5-10 year term |
| ADN-AC-10G-SIA-3 |
Access Advantage w/ Essentials SIA 10G 3-5 year term |
| ADN-AC-10G-SIA-5 |
Access Advantage w/ Essentials SIA 10G 5-10 year term |
| ESS-ADN-AC-10G-S3 |
Access Essentials to Advantage Upgrade SIA 10G 3-5 yrs |
| ESS-ADN-AC-10G-S5 |
Access Essentials to Advantage Upgrade SIA 10G 5-10 yrs |
| N540-24Z8Q2C-FC-SW |
NCS 540 Series additional Software Licenses (RTU, SIA) |
Ordering information for power cables supported on NCS 540
Table 7. Ordering information for power cables
| Part number |
Description |
| CAB-AC-SA |
Power Cord - South Africa, 16/10A,250V,1830mm, -40C to +85C |
| CAB-AC-ARG |
Power Cord - Argentina, 10A,250V,2500mm, -40C to +85C |
| CAB-AC-ISR |
Power Cord - Israel, 16/10A,250V,2500mm, -40C to +85C |
| CAB-AC-TAI |
Power Cord - Taiwan, 15/10A,125V,2500mm, -40C to +85C |
| CAB-AC-CHI |
Power Cord - China, 10A,250V,2500mm, -40C to +85C |
| CAB-AC-KOR |
Power Cord - Korea, 16/10A,125V,2500mm, -40C to +85C |
| CAB-AC-EUR |
Power Cord - Europe, 16/10A,250V, 2500mm, -40C to +85C |
| CAB-AC-ITL |
Power Cord - Italy, 10A,250V, 2500mm, -40C to +85C |
| CAB-AC-UK |
Power Cord - UK, 13/10A, 250V, 2500mm, -40C to +85C |
| CAB-AC-AUS |
Power Cord - Australia, 10A,250V,2500mm, -40C to +85C |
| CAB-AC-US |
Power Cord - US, 15A,125V,2500mm, -40C to +85C |
| CAB-AC-BRA |
Power Cord - Brazil, 10A,250V,2500mm, -40C to +85C |
| CAB-AC-IND |
Power Cord - India, 16/10A,250V,2500mm, -40C to +85C |
| CAB-AC-SUI |
Power Cord - Swiss, 10A,250V,2500mm, -40C to +85C |
| CAB-AC-SA |
Power Cord - South Africa, 16/10A,250V,1830mm, -40C to +85C |
| CAB-AC-ARG |
Power Cord - Argentina, 10A,250V,2500mm, -40C to +85C |
| CAB-AC-ISR |
Power Cord - Israel, 16/10A,250V,2500mm, -40C to +85C |
Cisco offers a wide range of services to help accelerate your success in deploying and optimizing the Cisco NCS 540. These innovative Cisco Services offerings are delivered through a unique combination of people, processes, tools, and partners, and they are focused on helping you increase operating efficiency and improve your network operation. Cisco Advanced Services uses an architecture-led approach to help you align your data center infrastructure with your business goals and achieve long-term value. Cisco Services helps you resolve mission-critical problems with direct access at any time to Cisco network experts and award-winning resources. With this service, you can take advantage of the Cisco Smart Call Home service, which offers proactive diagnostics and real-time alerts on your Cisco NCS 540. Spanning the entire network lifecycle, Cisco Services offerings help increase investment protection, optimize network operations, support migration operations, and strengthen your IT expertise.
The Cisco NCS 540 has a 1-year limited hardware warranty. The warranty includes hardware replacement with a 10-day turnaround from receipt of a Return Materials Authorization (RMA).
Product sustainability
Information about Cisco’s environmental, social and governance (ESG) initiatives and performance is provided in Cisco’s CSR and sustainability reporting.
Table 8. Product sustainability
| Sustainability Topic |
Reference |
|
| General |
Information on product-material-content laws and regulations |
|
| Information on electronic waste laws and regulations, including our products, batteries and packaging |
||
| Information on product takeback and reuse program |
||
| Sustainability Inquiries |
Contact: csr_inquiries@cisco.com |
|
| Material |
Product packaging weight and materials |
Contact: environment@cisco.com |
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For more information about the Cisco NCS 540, contact your Cisco representative.
Table 9. Document history
| New or revised topic |
Described in |
Date |
| Updated Section Ordering information |
|
July 14, 2021 |