High-density Power over Ethernet switch

The BayStack 460-24T-PWR Switch has 24 10/100 Mbps autosensing ports, one MDA (Media Dependent Adapter) slot for uplink connectivity, and one cascade module slot for stacking. Up to eight switches can be stacked to achieve up to 224 10/100 ports (using 4-port 10/100 Mbps MDA per switch) that can be easily managed as a single unit. The 2.5 Gbps cascading bandwidth offers dedicated bandwidth between switches without sacrificing any uplink ports. The uplink ports can be used for connections to backbone switches such as the Passport 8600 Switch.

Full autosensing on every port

Every UTP port on the BayStack 460 Switch is equipped with autosensing technology to automatically detect and support the speed and mode of a connected device. The ports determine whether a connected device is operating at 10 Mbps or 100 Mbps, and automatically adjust to the optimal speed. Each of the switched ports can also automatically detect and support full-duplex connections to servers, power- user endstations or other switches, as well as half-duplex connections to legacy NICs or hubs.

IEEE P802.3af compliant

The BayStack 460-24T-PWR Switch is IEEE P802.3af compliant. It can provide Power over Ethernet to any IEEE P802.3af compliant device such as IP phones, wireless access points, network cameras, security and lighting devices, and access control devices. The benefit of being interoperable

Auto discovery feature

The BayStack 460-24T-PWR Switch automatically recognizes the connection of a device and immediately sends power to it. This automatic capability ensures fast connectivity without manual intervention.

Dynamic power management

Each port can be configured to limit the power delivered to a device. Each port can also be configured for power priority level—Low, High, and Critical. On the switch, total available power is monitored. In the case where all available power is fully utilized, the switch may turn off lower priority ports and turn on higher priority ports.

Active circuit protection

The BayStack 460 Switch can automatically disable a port if there is a short. All the other ports on the switch will remain active and will not be affected by the disabled port.

Plug-n-play IP telephony switching

The BayStack 460 Switch provides simplified Web-based configurations on data and power properties. The graphical user interfaces make it simple to set up data and power configurations.

Convenience of a single cable

With the BayStack 460 Switch, data and power can be transmitted over one cable without using a power outlet. There is no need for a separate cable connecting the device to a power outlet.

Significant space and cost savings

Traditionally, a mid-span patch panel device connects to a standard Ethernet switch and the device sends power over standard UTP cat 5 cable; in essence, two units are needed for Power over Ethernet capability. In contrast, the BayStack 460 Switch integrates standard LAN switch functionality with the power over UTP cable capability of a mid-span patch panel into one unit. This can result in significant cost and space savings.

BoSS v3.0 (BayStack operating system Switching Software)

With the release of BoSS v3.0, Nortel Networks becomes the first vendor to offer a single software image that can support four different switch types: BayStack 460- 24T-PWR, BayStack Business Policy Switch, BayStack 470-48T, and BayStack

Figure 2: In the unlikely event of a switch failure, the stack integrity is maintained: cascade signals loop back at point of failure.

Unit 8

Unit 7

Unit 6

Unit 5

Unit 4

Unit 3

Unit 2

Unit 1

with standards-based equipment means that customers are not forced to tie themselves to any one vendor, as the switch has the flexibility to power multiple vendors’ devices. It can supply power up to 15.4 Watts per port, which meets the IEEE P802.3af standard. This is more than sufficient to power most devices.

2

Table 1: Stacking matrix

 

BayStack

BayStack

BayStack

BayStack

BayStack

 

460-24T-PWR

470-24T

470-48T

Business

450

 

 

 

 

Policy Switch

 

BayStack 460-24T-PWR

Yes

Yes

Yes

Yes

Yes

with BoSS v3.0

 

 

 

 

 

BayStack 470-24T

Yes

Yes

Yes

Yes

Yes

with BoSS v3.0

 

 

 

 

 

BayStack 470-48T

Yes

Yes

Yes

Yes

No

with BoSS v3.0

 

 

 

 

 

BayStack Business Policy

Yes

Yes

Yes

Yes

Yes

Switch with BoSS v3.0

 

 

 

 

 

BayStack 450*

Yes

Yes

No

Yes

Yes

Note: *BayStack 450 must have BayStack 450 software v4.2 or higher.