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by Juniper
Product Line: Juniper EX4200 Series
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Product Description

The EX-UM-4SFP Juniper module features a 4-port GbE SFP Uplink Module and a 2-port 10GbE module with pluggable XFP optics, designed for high-capacity networking with a 128 Gbps backplane. It supports both AC power supplies with auto-sensing ranging from 100-120 V / 200-240 V and DC power supply options, providing 190 W DC with an input voltage range of 36 V - 72 V. With dimensions of 17.41 x 1.72 x 16.43 in and designed for a 1 RU rack space, it operates efficiently within a temperature range of 32° F to 113° F and up to 10,000 ft altitude, ensuring reliability in various environments.

FAQs for the EX-UM-4SFP

  • What is the backplane capacity of the 4-port GbE SFP Uplink Module?
    The backplane capacity is 128 Gbps.
  • How does the 2-port 10GbE module connect to networks?
    It connects through pluggable XFP optics.
  • What are the power supply specifications for this device?
    Power supplies are autosensing, 100-120 V / 200-240 V AC, with options for 320 W, 600 W, and 930 W dual load-sharing hot-swappable internal redundant power supplies.
  • What is the maximum current inrush of the device?
    The maximum current inrush is 50 amps.
  • Does the device support DC power supply?
    Yes, it supports a 190 W DC power supply with an input voltage range of 36 V - 72 V and dual input feed.
  • What are the dimensions of the device?
    Dimensions are 17.41 x 1.72 x 16.43 in (44.21 x 4.32 x 41.73 cm).
  • What is the depth of the device with the 600/930 W AC PSU?
    The depth is 18.8 in (47.8 cm) with 600/930 W AC PSU.
  • What is the operating temperature range for AFO models?
    Operating temperature ranges from 32° F to 113° F.
  • How does the device handle cooling?
    It has a field-replaceable fan tray with multiple blowers (3), ensuring an airflow of 20.3 cfm.
  • What are the device's storage temperature limits?
    Storage temperature ranges from -40° F to 158° F.

Product Review

The Juniper EX-UM-4SFP offers a high-performance backplane with a capacity of 128 Gbps and includes a 4-port GbE SFP uplink module, catering to networks requiring high-speed connectivity and bandwidth. Its dual load-sharing hot-swappable power supplies (available in multiple wattages) and support for both AC and DC power inputs enhance system reliability and flexibility in various operational environments. However, the requirement for pluggable XFP optics for the 2-port 10GbE module may introduce additional costs and complexity in deployment and maintenance.


The Juniper EX-UM-4SFP is a 4-port Gigabit Ethernet SFP Uplink Module designed to enhance connectivity and network efficiency. It provides a backplane capacity of 128 Gbps, ensuring high-speed data transfer and communication across the network. This module is equipped with a 2-port 10GbE module that supports pluggable XFP optics, allowing for flexible network upgrades and expansions. Power supply options for the EX-UM-4SFP are versatile, with autosensing capabilities ranging from 100-120V to 200-240V AC, including 320W, 600W, and 930W dual load-sharing hot-swappable internal redundant power supplies. This ensures uninterrupted power supply and network reliability. The device also supports a 190W DC power supply with a dual input feed, accepting an input voltage range of 36V to 72V, further enhancing its adaptability in various network environments. The physical dimensions of the EX-UM-4SFP are 17.41 x 1.72 x 16.43 inches (44.21 x 4.32 x 41.73 cm), fitting into a standard 1 rack unit (RU) space. With the 320W AC and 190W DC power supplies, its depth extends to 18.8 inches (47.8 cm) when equipped with the 600/930W AC power supplies, making it suitable for various rack configurations. Operating conditions for the EX-UM-4SFP are designed to accommodate a broad range of environments: - Operating temperature for Airflow Optimized (AFO) models ranges from 32°F to 113°F. - Storage temperatures can range from -40°F to 158°F, ensuring the module's integrity during non-operational periods. - The device can operate at altitudes up to 10,000 feet (3,049 m) and be stored at altitudes up to 16,000 feet (4,877 m), making it suitable for deployment in various geographical locations. - Relative humidity levels for operating conditions are between 10% and 85% (non-condensing), and for non-operating conditions, they range from 0% to 95% (non-condensing), ensuring the module's performance in diverse environmental conditions. Key hardware features include: -
  • A backplane capacity of 128 Gbps.
  • Dual load-sharing hot-swappable internal redundant power supplies.
  • A field-replaceable fan tray with multiple blowers to maintain optimal operating temperatures.
The EX-UM-4SFP's airflow is rated at 20.3 cubic feet per minute (cfm), with a field-replaceable fan tray that includes multiple blowers, ensuring efficient cooling and reliable operation. The rack-mount width is standardized at 17.5 inches (44.5 cm), compatible with most rack systems. In summary, the Juniper EX-UM-4SFP is a high-capacity uplink module designed for flexibility, reliability, and high performance in enterprise networking environments. Its comprehensive power supply options, environmental tolerances, and compact, efficient design make it an essential component for modern network infrastructures seeking scalability and resilience.


Part NumberEX-UM-4SFP
Module Type4-port Gigabit Ethernet SFP Uplink Module
Internal Bandwidth128 Gigabits per second
10 Gigabit Ethernet Ports2, with removable XFP optics
Power Supply TypeAuto-adjusting; Voltage Range: 100-120 V / 200-240 V; AC Power Options: 320 W, 600 W, and 930 W with dual load-sharing, hot-swappable, internal redundancy
Peak Current Draw50 A
DC Power Option190 W, Voltage Input: 36-72 V, with dual feeds
Size (Width x Height x Depth)17.41 x 1.72 x 16.43 inches (44.21 x 4.32 x 41.73 cm)
Unit Height1 Rack Unit (RU)
Total Depth with Power Supplies18.8 inches (47.8 cm) for both 320 W AC and 190 W DC; 600/930 W AC Power Supplies
Minimum Operating Temperature32° Fahrenheit (for AFO models)
Maximum Operating Temperature113° Fahrenheit (for AFO models)
Minimum Storage Temperature-40° Fahrenheit
Maximum Storage Temperature158° Fahrenheit
Maximum Operating Elevation10,000 feet (3,049 meters)
Maximum Non-operating Elevation16,000 feet (4,877 meters)
Operational Minimum Relative Humidity10%
Operational Maximum Relative Humidity85% (non-condensing)
Non-operational Minimum Relative Humidity0%
Non-operational Maximum Relative Humidity95% (non-condensing)
Cooling Airflow20.3 cubic feet per minute (cfm)
Fan TrayField-replaceable with multiple (3) blowers
Chassis Width for Rack-mount17.5 inches (44.5 cm)

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