Software release

• Junos OS Release 9.1 and later

Description

• 40 autonegotiating 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
• Model number: DPCE-R-40GE-TX

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
• The ports are grouped in sets of four and labeled:
  • 0/0 through 0/9
  • 1/0 through 1/9
  • 2/0 through 2/9
  • 3/0 through 3/9

Software features

• See Protocols and Applications Supported by MX Series DPCs and Enhanced DPCs (DPC and DPCE-R) for information about the protocols and applications that this DPC supports.

Cables and connectors

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

Caution: 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.

LEDs

OK/FAIL LED, one bicolor:

• Steady green—DPC is functioning normally.
• Blinking green—DPC is transitioning online or offline.
• Red—DPC has failed.

ACT LED, one green per port:

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

SPD LED, one bicolor:

• Green—DPC is functioning in 1000BASE-T mode.
• Yellow—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.