Juniper Networks J2350 manual Copper Gigabit Ethernet ePIM

Chapter 3: PIM Overview

Figure 26: Copper Gigabit Ethernet ePIM

Figure 27: SFP Gigabit Ethernet ePIM

Features. The Gigabit Ethernet ePIM provides the following key features:

■Autonegotiation through medium-dependent interface (MDI) and MDI crossover (MDI-X) support.

■Link speeds for the Copper Gigabit Ethernet ePIM are configurable to 10, 100, or 1000 Mbps, and transmission mode is configurable to half or full duplex. The SFP Gigabit Ethernet ePIM cannot be manually configured—it is set at 1000 Mbps and full duplex.

■The SFP Gigabit Ethernet ePIM uses SFPs to allow different connectors to be used on the ePIM ports. The ePIM supports 1000Base-SX, 1000Base-LX, and 1000Base-T copper SFPs. It does not support 1000Base-LH SFPs.

1000Base-SX and 1000Base-LX SFP transceivers have the following characteristics:

■Duplex LC/PC connector (Rx and Tx).

■Optical interface support—See Table 24 on page 46.

■Copper Gigabit Ethernet ePIM and 1000Base-T SFP transceivers have the following characteristics:

■Connector: Four-pair, category 5 unshielded twisted-pair cable through an RJ-45 connector

■Pinout: MDI crossover

■Maximum distance: 100 m (328 ft)

For pinouts of cable connectors for Copper Gigabit Ethernet ePIMs, see “Gigabit Ethernet ePIM RJ-45 Connector Pinout” on page 190.

Field-Replaceable PIMs ■ 45