Dell Networking S4820T Switch

Tech Specs

• Base:
  Dell S4000 Series Switches
• Switch Features:
  S4820T 1/10G BASE-T, 48 x 1/10G BASE-T, 4 x QSFP+, 1 x AC PSU, 2 x Fans, IO Panel to PSU Airflow
  S4820T 1/10G BASE-T, 48 x 1/10G BASE-T, 4 x QSFP+, 1 x AC PSU, 2 x Fans, PSU to IO Panel Airflow
  S4820T 1/10G BASE-T, 48 x 1/10G BASE-T, 4 x QSFP+, 1 x DC PSU, 2 x Fans, IO Panel to PSU Airflow
  S4820T 1/10G BASE-T, 48 x 1/10G BASE-T, 4 x QSFP+, 1 x DC PSU, 2 x Fans, PSU to IO Panel Airflow
  S4820T 1/10G BASE-T, 48 x 1/10G BASE-T, 4 x QSFP+, 1 x AC PSU, 2 x Fans, IO panel to PSU Airflow, TAA
  S4820T 1/10G BASE-T, 48 x 1/10G BASE-T, 4 x QSFP+, 1 x AC PSU, 2 x Fans, PSU to IO Panel Airflow, TAA
  
• Physical:
  48 line-rate 1/10G BASE-T ports
  4 line-rate 40GbE QSFP+ ports
  1 RJ45 console/management port with RS232 signaling
• Redundant Power Supplies:
  S4820T 1/10G BASE-T, AC Power Supply, IO Panel to PSU Airflow
  S4820T 1/10G BASE-T, AC Power Supply, PSU to IO Panel Airflow
  S4820T 1/10G BASE-T, DC Power Supply, IO Panel to PSU Airflow
  S4820T 1/10G BASE-T, DC Power Supply, PSU to IO Panel Airflow
• Fan Module:
  S4820T 1/10G BASE-T fan module, IO Panel to PSU Airflow
  S4820T 1/10G BASE-T fan module, PSU to IO SR4 Panel Airflow
• Performance:
  MAC addresses: 128K
  IPv4 routes: 16K
  IPv6 routes: 8K (shared CAM space with IPv4)
  Switch fabric capacity: 1.28 Tbps (full-duplex), 640 Gbps (half-duplex)
  Forwarding capacity: 960 Mpps
  Link aggregation: 8 links per group, 128 groups per stack
  Queues per port: 4 queues
  Layer 2 VLANs: 4K
  MSTP : 64 instances
  VRF-lite: 64 instances
  Line-rate Layer 2 switching: all protocols, including IPv4 and IPv6
  Line-rate Layer 3 routing: IPv4 and IPv6
  IPv4 host table size 16K
  IPv6 host table size 8K
  IPv4 Multicast table size 8K
  LAG load balancing: based on Layer 2, IPv4 or IPv6 headers
  Latency 3.3 µsec
  Packet buffer memory: 9MB
  CPU memory: 2GB
  
• Transceiver Optics:
  40GbE, SR QSFP+, short reach
  40GbE, ESR QSFP+, extended short reach
  40GbE, LM4 QSFP+, universal duplex short reach
  40GbE, SM4 QSFP+, duplex short reach
  40GbE PSM4 QSFP+, parallel single mode long reach 1m, 5m, 15m tail
  40GbE, PSM4-LR QSFP+, MPO to 4x SFP+ long reach
  40GbE LR4 QSFP+, long reach
  40GbE QSFP+ to SFP+/SFP Adapter (QSA)
  10GbE, SR SFP+, short reach
  10GbE, LR SFP+, long reach
  10GbE, ER SFP+, extended reach
  10GbE, ZR SFP+ extra extended reach
  1GbE, SX SFP, short reach
  1GbE, LX SFP, long reach
  1GbE, ZX SFP, extended reach
  1GbE, 1000Base-T SFP, copper
• Regulatory Compliance:
  Safety
  UL/CSA 60950-1, Second Edition
  EN 60950-1, Second Edition
  IEC 60950-1, Second Edition Including All National Deviations and Group Differences
  EN 60825-1 Safety of Laser Products Part 1: Equipment Classification Requirements and User’s Guide
  EN 60825-2 Safety of Laser Products Part 2: Safety of Optical Fibre Communication Systems
  FDA Regulation 21 CFR 1040.10 and 1040.11
  Emissions
  Australia/New Zealand: AS/NZS CISPR 22: 2006, Class A
  Canada: ICES-003, Issue-4, Class A
  Europe: EN 55022: 2006+A1:2007 (CISPR 22: 2006), Class A
  Japan: VCCI V3/2009 Class A
  USA: FCC CFR 47 Part 15, Subpart B:2011, Class A
  Immunity
  EN 300 386 V1.4.1:2008 EMC for Network Equipment
  EN 55024: 1998 + A1: 2001 + A2: 2003
  EN 61000-3-2: Harmonic Current Emissions
  EN 61000-3-3: Voltage Fluctuations and Flicker
  EN 61000-4-2: ESD
  EN 61000-4-3: Radiated Immunity
  EN 61000-4-4: EFT
  EN 61000-4-5: Surge
  EN 61000-4-6: Low Frequency Conducted Immunity
  
• RoHS:
  All S Series components are EU RoHS compliant.