Sun Microsystems 2.0 See -1 for a list of the NEM’s features, 1 NEM Features and Specifications

Twenty SFP fiber-optic transceivers are included with each NEM. You can order additional NEMs and SFP transceivers from Sun Microsystems using the following part numbers:

Description	Part Number
4 Gb FC NEM 20-port HBA	SG-XPCIE20FC-NEM-Z
4 pack of Small-Form Pluggable shortwave FC optical	XSFP-SW-4GB-4PK
transceivers capable of 4 Gb, 2 Gb, and 1 Gb transfer
rates (RoHS-5 compliant)
Small-Form Pluggable shortwave FC optical	XSFP-SW-4GB
transceiver capable of 4 Gb, 2 Gb, and 1 Gb transfer
rates (RoHS-5 compliant)

See TABLE 1-1for a list of the NEM’s features.

TABLE 1-1NEM Features and Specifications

Feature	Description
NEM interface	PCI Express ten x8 (ten x4 active links)
FC interface	Dual port 4, 2, 1 Gbps auto-speed negotiation
FC topology	Point-to-point (N-port), Arbitrated Loop (NL_port) and
	Switched Fabric (N_port)
PCI transfer rate (maximum)	PCI Express Generation One (2.5 Gbps) x4
Onboard memory	One 4-MB flash ROM per chip, 40 MB total, field-
	programmable
	One 1.5 MB SRAM per chip, 15 MB total NEM SRAM
ID chip	Enables the HBA worldwide names (WWNs) to be
	retained when a NEM is replaced. See “ID Chip
	Feature” on page 3 for more information.
External FC connectors	Small Form-Factor Pluggable (SFP) multimode optic
	with LC-style connector
Maximum FC cable length	1 Gbps: 500 meters using 50/125 ∝m core fiber
	300 meters using 62.5/125 ∝m core fiber
	2 Gbps: 300 meters using 50/125 ∝m core fiber
	150 meters using 62.5/125 ∝m core fiber
	4 Gbps: 150 meters using 50/125 ∝m core fiber
	70 meters using 62.5/125 ∝m core fiber

2 Sun StorageTek 4 Gb FC NEM 20-Port Host Bus Adapter User’s Guide • May 2007