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40-Port Tri-Rate Enhanced DPC

Image g003919.gif

Software release

  • JUNOS 9.1 and later


  • 40 10Base-T, 100Base-TX, or 1000Base-T Megabit Ethernet ports
  • Power requirement: 6.67 A @ 48 V (320 W)
  • Weight: 14.5 lb (6.6 kg)
  • Supports large Ethernet frame sizes for more efficient throughput across the intra-POP network

Hardware features

  • High-performance throughput on each port at speeds of 10 Mbps, 100 Mbps, or 1000 Mbps
  • Autonegotiation between Gigabit Ethernet circuit partners
  • Full-duplex mode
  • Maximum transmission units (MTUs) of up to 9192 bytes
  • Enhanced ASICs for increased performance and scalability of Layer 2 features

Software features

Cables and connectors

  • Connector: Four-pair, Category 5 shielded twisted-pair connectivity through an RJ-45 connector
  • Pinout:
    • JUNOS 9.1: MDI
    • JUNOS 9.2 and later: MDI, MDI crossover
  • Maximum distance: 328 ft/100 m

Note: Do not use RJ-45 cables with strain-relief boots exceeding 1.5 mm from the bottom of the connector. Cable boots that exceed this measurement can damage the port.


OK/FAIL LED, one bicolor:

  • Green—DPC is functioning normally.
  • Red—DPC has failed.

ACT LED, one green per port:

  • Off—No active traffic.
  • Flashing—Link is active.

SPD LED, one bicolor:

  • Green—DPC is functioning in 1000Base-T mode.
  • Amber—DPC is functioning in 10Base-T or 100Base-TX mode.
  • Off—No link.

The ACT and SPD LEDs are located on either side of the ports labeled horizontally and top to bottom 0/0 through 3/9.

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