SANRAD V-Switch manual 1000BASE-SXSHORT-WAVE Laser for

A copper connection will not work if an SFP is present in the port.

Network Port Connections

The network ports, labeled Eth 1, 2 & 3, are located on the front right of the V-Switch 3000. Use the 1Gb Ethernet ports to connect to the network or directly to the host station.

Each network port has both a fiber optic and copper connector but only one cable, either fiber optic or copper, can be connected to each port. To connect a fiber-optic cable you need a Small Form Factor Package (SFP) optical transceiver to couple to the fiber optic cable and insert into the network SFP port. Please refer to Figure 17, page 40.

At power up, the V-Switch 3000 automatically registers which connector, copper or fiber optic, is active by searching for an SFP optical transceiver. The presence of an SFP will automatically determine which mode is active.

Once the port is active in one mode, it will not change modes unless the first, active connection is broken first. This means that once the port is active over a copper connection, the insertion of an SFP optical transceiver into the fiber optic connector will not change the port activity to fiber optic. The copper connection must first be broken and then the fiber optic connection made.

Conversely, if a port is active on a fiber optic connection and you want to switch to copper, it is not enough to remove the fiber optic connection from the SFP optical transceiver. The SFP optical transceiver must also be removed from the fiber optic connector. Only then can the port activity switch to a copper connection.

When configuring your network topology, keep in mind that the current initiator technology does not support volume access by more than one server at a time. There are two methods for allowing multi-server access to a volume:

Connect a single server to the V-Switch 3000 and allow other servers to access the volume via file sharing.

Install volume-sharing software to coordinate the read/write functionalities and data synchronization between servers.

The network ports support all of the following:

Table 10:	Network Port Cable Connections
CABLE		LENGTH	SFP
1000BASE-SXSHORT-WAVE LASER FOR		FROM 275M TO 550M	SHORT-WAVE SFP
MULTIMODE FIBER
1000BASE-LXLONG-WAVE LASER FOR SINGLE		UP TO 10KM	LONG-WAVE SFP
MODE FIBER

Chapter 3: Installing the V-Switch 3000 39