Thông số kỹ thuật Switch Juniper EX4200-24T
| Physical Specifications | |
| Dimensions (W x H x D) | • Backplane: 128 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device • Uplink module options: – 4-port GbE module with pluggable SFP optics – 2-port 10GbE module with pluggable XFP optics – Dual-mode 2-port 10GbE SFP+ / 4-port GbE SFP module with pluggable SFP+/SFP optics – Dual-mode 2-port 10GbE SFP+ / 4-port GbE SFP module with pluggable SFP+/SFP optics and MACsec support |
| Power Options | • Power supplies: Autosensing; 100-120 V / 200-240 V; AC 320 W, 600 W and 930 W dual load-sharing hotswappable internal redundant power supplies • Maximum current inrush: 50 amps • DC power supply: 190 W DC, input voltage range 36 V – 72 V, dual input feed, dual load-sharing hot-swappable internal redundant power supplies • Minimum number of PSUs required for fully loaded chassis: 1 per switch |
| Dimensions (W x H x D) | • 17.41 x 1.72 x 16.43 in (44.21 x 4.32 x 41.73 cm) • Desktop installation width noted above, rack-mount width is 17.5 in (44.5 cm) • Height: 1 RU • Depth with 320 W AC PSU and 190 W DC PSU noted above, 18.8 in (47.8 cm) with 600/930 W AC PSU |
| System Weight | 16.5 lb (7.5 kg) |
| Environmental Ranges | • Operating temperature: 32° to 113° F (0° to 45° C) • Storage temperature: -40° to 158° F (-40° to 70° C) • Operating altitude: up to 10,000 ft (3,049 m) • Non-operating altitude: up to 16,000 ft (4,877 m) • Relative humidity operating: 10% to 85% (noncondensing) • Relative humidity non-operating: 0% to 95% (noncondensing) |
| Cooling | • Field-replaceable fan tray with multiple blowers (3) • Switch remains operational even if one blower fails • Airflow: 20.3 cfm |
| Hardware Specifications | |
| Switching Engine Model | Store and forward |
| DRAM | 1 GB with ECC |
| Flash | 1 GB |
| CPU | 1 GHz PowerPC CPU |
| GbE port density per system | 24 host ports + four 1/10 GbE |
| Physical Layer | • Time Domain Reflectometry (TDR) for detecting cable breaks and shorts: 24P/24T and 48P/48T only • Auto MDI/MDIX support: 24P/24T and 48P/48T only (all ports) • Port speed downshift/setting max advertised speed on 10/100/1000BASE-T ports: 24P/24T and 48P/48T only, on all ports • Digital optical monitoring for optical ports |
| Packet-Switching Capacities (Maximum with 64-Byte Packets) | 88 Gbps |
| Aggregate Switch Capacities (Maximum with 64 Byte Packets) | 216 Gbps |
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