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by Juniper
Product Line: Juniper M120 Multiservice Edge Router Series
Product Type: Edge Router
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Product Description

The M120-FPC2 Juniper Flexible PIC Concentrator supports up to 4 Type 1 PICs, offering an aggregate half-duplex throughput of 120 Gbps/90 Mpps and a full-duplex throughput of 10 Gbps per slot across 4 FPC slots. It is equipped with Layer 2 / Layer 3 Packet Processing ASICs, a 1 GHz Intel Celeron M processor, and 2 GB DRAM, ensuring efficient packet forwarding and processing capabilities. Designed for high-density configurations, it can be mounted in a 17.5 x 20.7 x 25.7 in chassis, supporting up to 16 PICs per chassis and 4 chassis per rack, with a maximum power consumption of 2,150 watts on DC input and 2,200 watts on AC input, accommodating environments up to 10,000 ft / 3,048 m altitude without performance degradation.

FAQs for the M120-FPC2

  • What is the aggregate half-duplex throughput of the Flexible PIC Concentrator, Type 1, M120?
  • The aggregate half-duplex throughput is 120 Gbps/90 Mpps, with 15 Mpps per Forwarding Engine Board (FEB).

  • How many FPC slots are available and what is the full duplex throughput per slot?
  • The M120 supports 4 FPC slots, offering 10 Gbps full duplex throughput per slot.

  • What is the maximum number of PICs supported per chassis?
  • The chassis can accommodate up to 16 PICs.

  • How many chassis can be mounted in a standard rack?
  • Up to 4 chassis can be mounted in a standard rack.

  • Does the M120 support redundancy?
  • Yes, the M120 supports redundancy.

  • What are the dimensions and maximum weight of the M120 chassis?
  • Dimensions are 17.5 x 20.7 x 25.7 inches (44.5 x 52.6 x 65.3 cm) and the maximum weight is 230 lb / 105 kg.

  • What are the power requirements for DC input?
  • DC input power requires 45 A at 48 VDC, totaling 2,150 watts.

  • How many power supplies are required for non-redundant and redundant configurations?
  • For both non-redundant and redundant configurations, 1/2 power supplies are required.

  • What processor is used in the M120, and what is its clock speed and memory?
  • The M120 uses a 1 GHz Intel Celeron M processor with 2 GB DRAM.

  • What are the operational temperature limits and maximum altitude for the M120?
  • The operational temperature range is 32°F to 104°F, with a maximum altitude for no performance degradation up to 10,000 ft / 3,048 m.

Product Review

The Juniper M120-FPC2 offers a notable aggregate half-duplex throughput of 120 Gbps/90 Mpps, supported by a strong architecture that includes Layer 2 / Layer 3 Packet Processing ASICs and a 1 GHz Intel Celeron M processor with 2 GB DRAM, ensuring efficient performance for complex network tasks. However, its maximum weight of 230 lb / 105 kg and dimensions may pose challenges for deployment in space-constrained environments. Additionally, the requirement for up to two power supplies for redundancy, with a substantial power draw, could increase operational costs and necessitate careful power management planning.


The Juniper M120-FPC2 is a Type 1 Flexible PIC Concentrator designed to increase the capabilities of Juniper M120 routers. It allows for the installation of up to four Type 1 Physical Interface Cards (PICs), enhancing the router's connectivity and throughput capabilities. This device is engineered to support an aggregate half-duplex throughput of 120 Gbps or 90 million packets per second (Mpps), with each Forwarding Engine Board (FEB) capable of processing up to 15 Mpps. The M120-FPC2 is equipped with four FPC slots, each supporting 10 Gbps full-duplex throughput. This configuration enables the chassis to manage a maximum of 16 PICs, allowing for considerable expansion in network design and implementation. Moreover, the device's architecture supports the installation of up to four such chassis per rack, ensuring high density and efficient space utilization within data centers. In terms of redundancy, the M120-FPC2 is designed with system reliability in mind. It offers features that ensure continuous operation and minimal downtime, a critical factor for mission-critical network environments. The hardware specifications of the M120-FPC2 include a dimension profile of 17.5 inches in width, 20.7 inches in height, and 25.7 inches in depth. Its maximum weight is 230 pounds or 105 kilograms, and it supports both front and center mounting options. The device's power requirements are versatile, with DC input power specified at 45 A at 48 VDC or 2,150 watts. For AC input, it ranges from 28 to 14 A across 100 to 240 VAC at a frequency of 47 to 63 Hz, translating to 2,200 watts. Both non-redundant and redundant configurations require one or two power supplies, respectively. Core components of the M120-FPC2 include Layer 2 and Layer 3 packet processing ASICs, switch interface ASICs, and an I-chip on the Packet Forwarding Engine. These elements are supported by a comprehensive memory subsystem, which encompasses queuing and memory interface ASICs. The processor subsystem of the M120-FPC2 features a 1 GHz Intel Celeron M processor coupled with 2 GB of DRAM, ensuring efficient processing and handling of network traffic.
  • 10 Gbps full-duplex throughput per slot
  • Supports up to 16 PICs per chassis
  • 1 GHz Intel Celeron M processor with 2 GB DRAM
Operating in environments with a minimum temperature of 32°F and a maximum of 104°F, the M120-FPC2 can function without performance degradation at altitudes up to 10,000 feet or 3,048 meters. It maintains operational integrity in relative humidity ranging from 5% to 90%, non-condensing. This comprehensive overview of the Juniper M120-FPC2 highlights its capabilities and specifications, demonstrating its utility in enhancing network throughput, reliability, and scalability. Its robust design and flexible power options make it a suitable choice for a wide range of networking environments, ensuring efficient and reliable network operations.


Product ID Juniper M120-FPC2
Product Type Flexible PIC Concentrator for M120, supports four Type 1 PICs
Combined Throughput 120 Gbps half-duplex, 90 million packets per second (15 Mpps per Fabric Element Board)
FPC Slots and Throughput per Slot 4 slots, each with a capacity of 10 Gbps full duplex
Total PICs Supported per Frame 16
Maximum Frames per Rack 4
Support for Redundancy Available
Physical Dimensions (W x H x D) 17.5 x 20.7 x 25.7 inches (44.5 x 52.6 x 65.3 cm)
Weight Limit 230 pounds (105 kilograms)
Mounting Options Front or Center
DC Power Requirements 45 A at 48 VDC, 2,150 watts
Power Supply Count (Standard/Redundant) 1 / 2
AC Power Specs 28 to 14 A, 100 to 240 VAC, 47 to 63 Hz, 2,200 watts
Power Supply Count (Standard/Redundant) for AC 1 / 2
Throughput Capacity of M120-FPC2 10 Gbps, full duplex
Processing Capabilities Layer 2 and Layer 3, with ASICs for packet processing and switch interfacing
Packet Forwarding Engine I-chip technology
Memory and Processor 2 GB DRAM, 1 GHz Intel Celeron M, with memory interface ASICs
Operating Temperature Range 32° F to 104° F
Humidity Tolerance 5% to 90%, non-condensing
Maximum Operational Altitude Up to 10,000 feet (3,048 meters) without performance loss

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