Juniper EX3400‑48T‑DC Specifications
Manufacturer: Juniper Networks
Manufacturer Model: EX3400‑48T‑DC
Product Line: EX3400 Series
Product Series: 48‑Port 10/100/1000BASE‑T Access with DC Power Supply
Product Type: Fixed‑configuration Ethernet Switch
Product Name: Juniper EX3400 48‑Port DC Access Switch
KEY FEATURES:
48 × 10/100/1000 Mbps RJ‑45 host ports
Uplinks: 4 × SFP/SFP+ (functioning as 1/10 GbE) + 2 × 40 GbE QSFP+ uplink ports
NetworkScreen
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DC power supply version (designed for DC input) with front‑to‑back airflow orientation (standard variant)
Juniper Networks
Supports Virtual Chassis technology: up to 10 switches can be interconnected and managed as a single logical unit
Juniper Networks
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PERFORMANCE:
Switching capacity: ~168 Gbps unidirectional / ~336 Gbps bidirectional for the 48‑port DC model.
SaoBanTech
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Maximum Layer 2/3 throughput: ~250 Mpps (million packets per second) for the 48‑port versions.
Router-Switch.com
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Supports jumbo frames up to 9,216 bytes, VLANs up to 4,096, MAC address table ~32,000 entries.
Juniper Networks
ENVIRONMENTAL & RELIABILITY:
Operating temperature: 0 °C to 45 °C (32 °F to 113 °F)
SaoBanTech
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Relative humidity: 10% to 85% non‑condensing in operation
SaoBanTech
Operating altitude: up to approximately 3,000 m (10,000 ft)
SaoBanTech
Includes field‑replaceable fan modules and supports power redundancy (depending on PSU configuration)
PHYSICAL:
Form Factor: 1 RU rack‑mount chassis
Juniper Networks
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Dimensions: Approx. 44.1 cm (W) × 4.37 cm (H) × ~38.24 cm (D) for the DC model.
SaoBanTech
Weight: ~5.74 kg maximum with PSU and two fan modules for this variant.
Juniper Networks
NOTES:
This model is specifically the DC‑powered version (EX3400‑48T‑DC) — ensure your rack power infrastructure supports DC input.
The uplink modules (SFP/SFP+ and QSFP+) are typically not included and must be purchased separately.
When forming a Virtual Chassis, all units must share compatible airflow orientation, power type, and model series.
Confirm current firmware, feature licenses (Layer 3 or advanced services) and local support/spare‑part availability for your region (Pakistan/Lahore) before procurement.

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