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by Juniper
Product Line: Juniper Networks Dense Port Concentrator Express (DPCE) Series
Product Type: Network Interface Module (NIM)
Original price $0.00 - Original price $303.00
Original price
$0.00 - $303.00
Current price $303.00
Title: Used

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Product Description

The DPCE-R-40GE-TX is a Juniper networking hardware featuring 40 autonegotiating 10BASE-T, 100BASE-TX, or 1000BASE-T Megabit Ethernet ports that support speeds of 10 Mbps, 100 Mbps, or 1000 Mbps, designed for efficient operation with a power requirement of 6.67 A @ 48 V (320 W). It is equipped for high performance with full-duplex mode and supports Maximum Transmission Units (MTUs) of up to 9192 bytes, enhancing the performance and scalability of Layer 2 features. With physical dimensions of 17.5" (W) x 8.7" (H) x 23.8" (D) and a weight of 14.5 lb (6.6 kg), this device operates effectively within a temperature range of 32° F to 104° F and up to 13,000 ft / 4,000 m altitude without performance degradation.

Key Feature for the DPCE-R-40GE-TX

  • What is the power requirement for the 40-port 10/100/1000 RJ-45 DPC?
    The power requirement is 6.67 A @ 48 V (320 W).
  • How many Ethernet ports does the device have, and what types are supported?
    It has 40 autonegotiating 10BASE-T, 100BASE-TX, or 1000BASE-T Megabit Ethernet ports.
  • What are the physical dimensions of the 40-port DPC?
    Width: 17.5 inches, Height: 8.7 inches, Depth: 23.8 inches.
  • Can you describe the device's power supply specifications?
    Power can be supplied via -40 to -72 V DC or 100 to 240 V AC.
  • What is the weight of the 40-port 10/100/1000 RJ-45 DPC?
    The device weighs 14.5 lb (6.6 kg).
  • How does autonegotiation work on this device?
    Autonegotiation allows each port to automatically select the fastest speed (10 Mbps, 100 Mbps, or 1000 Mbps) and the correct communication mode (full-duplex).
  • What is the maximum MTU size supported by the 40-port DPC?
    The maximum MTU size supported is up to 9192 bytes.
  • What are the environmental operating conditions for the device?
    Operating temperature ranges from 32° F to 104° F, with relative humidity from 5% to 90% noncondensing. It operates without performance degradation up to 13,000 ft / 4,000 m altitude.
  • How are the Ethernet ports on the 40-port DPC organized?
    Ports are organized into four sets of 10, labeled 0/0 through 0/9, 1/0 through 1/9, 2/0 through 2/9, and 3/0 through 3/9.
  • What Layer 2 and Layer 3 features does the 40-port DPC offer for network performance and scalability?
    The device supports a comprehensive set of Layer 2 and Layer 3 features designed to enhance network performance and scalability.

Product Review

The Juniper DPCE-R-40GE-TX provides a high-density networking solution with 40 Gigabit Ethernet ports supporting autonegotiation, ensuring compatibility and optimal performance across different network speeds. However, the device's power consumption of 320W may be a concern for energy-conscious deployments. Additionally, its ability to operate without performance degradation in varied environmental conditions, from temperatures between 32° F and 104° F to altitudes up to 13,000 ft, enhances its versatility in different installation scenarios.


The Juniper DPCE-R-40GE-TX is a 40-port 10/100/1000 RJ-45 Dynamic Physical Layer Chip (DPLC) engineered for delivering high-speed networking solutions. It is designed to cater to networks requiring high density, flexibility, and scalability for Ethernet connectivity. This device supports Layer 2 and Layer 3 features, making it suitable for a wide range of applications. Each of the 40 ports on the DPCE-R-40GE-TX supports autonegotiation, allowing devices to automatically select the best possible speed (10 Mbps, 100 Mbps, or 1000 Mbps) and operation mode (full-duplex) to optimize network performance. This capability ensures compatibility between Gigabit Ethernet circuit partners and facilitates seamless integration into existing network infrastructures. The device boasts a power requirement of 6.67 A at 48 V (320 W), ensuring efficient power usage. It weighs 14.5 lb (6.6 kg) and has physical dimensions of 17.5 inches in width, 8.7 inches in height, and 23.8 inches in depth, making it a compact solution for data centers and network racks. The DPCE-R-40GE-TX operates on both DC and AC power sources, ranging from -40 to -72 V DC and 100 to 240 V AC, respectively.
  • Supports maximum transmission units (MTUs) of up to 9192 bytes, enabling the handling of large packets and improving data transmission efficiency.
  • Enhanced performance and scalability of Layer 2 features to meet the demands of growing networks.
  • Operates within a temperature range of 32° F to 104° F and can function in environments with up to 90% non-condensing humidity, ensuring reliability in various operating conditions.
The device's ports are organized into four sets of 10 ports each, labeled 0/0 through 0/9, 1/0 through 1/9, 2/0 through 2/9, and 3/0 through 3/9. This arrangement allows for efficient cable management and easy identification of connections, enhancing the user experience. Operating within an altitude of up to 13,000 ft (4,000 m) without performance degradation, the Juniper DPCE-R-40GE-TX is designed to withstand challenging environmental conditions, ensuring consistent performance across various deployment scenarios. In conclusion, the Juniper DPCE-R-40GE-TX is a versatile and efficient solution for networks seeking to enhance their Ethernet capabilities. With support for high-speed autonegotiation, large MTUs, and a range of operating conditions, this device provides a reliable foundation for deploying advanced network services and applications.


Part Number Juniper DPCE-R-40GE-TX
Manufacturer Juniper
Description 40-port Gigabit Ethernet DPC with Layer 2 and Layer 3 capabilities
Ports 40 Gigabit Ethernet RJ-45 ports capable of 10/100/1000 Mbps
Power Consumption 320 Watts, 6.67 Amps at 48 Volts
Weight 6.6 kilograms (14.5 pounds)
Dimensions Width: 44.45 cm (17.5 inches), Height: 22.1 cm (8.7 inches), Depth: 60.45 cm (23.8 inches)
Power Input DC: -40 V to -72 V, AC: 100 V to 240 V
Port Speeds Supports 10 Mbps, 100 Mbps, and 1000 Mbps, with autonegotiation
Autonegotiation Compatible with Gigabit Ethernet standards for speed matching
Duplex Mode Supports full-duplex for simultaneous send and receive
MTU Supports up to 9192-byte packets
Layer 2 Performance Enhanced Layer 2 feature set for improved network efficiency
Port Groupings Organized into four groups of ten: 0/0-0/9, 1/0-1/9, 2/0-2/9, 3/0-3/9
Minimum Operating Temperature 0°C (32°F)
Maximum Operating Temperature 40°C (104°F)
Operating Humidity Range 5% to 90%, non-condensing
Maximum Operating Altitude No performance loss up to 4,000 meters (13,000 feet)

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