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Configuring I/O Modules

Extreme Networks Consolidated Hardware Guide 251

In the first application, the metropolitan area network service provider can build service network sites

in various cities, then use PoS modules in a BlackDiamond 6800 series switch to connect those cities to a

carrier’s SONET infrastructure.

In the second application, operators of server co-location networks can use PoS modules in

BlackDiamond 6800 series switches to create a SONET-based connection between server co-location

sites. The result is that their network is simpler to manage, and problems can be isolated and resolved

more expediently.

Extreme Networks offers the PoS module in the following configurations:

• P3cMi: four OC-3 multimode, short-reach optical interfaces

• P3cSi: four OC-3 single-mode, intermediate-reach optical interfaces

• P12cMi: two OC-12 multimode, short-reach optical interfaces

• P12cSi: two OC-12 single-mode, intermediate-reach optical interfaces

NOTE

The “c” in the names of the modules indicates that the optical interfaces on these modules operate in

concatenated mode, which enables all the bandwidth to be devoted to a single payload stream.

NOTE

PoS modules are a Class 1 laser device.

The default configuration of the P3cSi, P3cMi, P12cSi, and P12cMi modules is as follows:

• Are added to the default VLAN as untagged. For P3c modules, only ports 1 and 3 are added to the

default VLAN. Ports 2 and 4 are not added to any VLAN.

• Inherit the properties of the default VLAN (VLANid and so forth).

Table 72 describes the specifications for the P3cSi, P3cMi, P12cSi, and P12cMi optical interfaces.

Physical Description

This section describes the components and the LEDs of the PoS module, as shown in Figure 129.

The PoS module has the following key components:

• Two high-performance network processors

• A General Purpose Processor (GPP) subsystem

The network processors are programmable devices that participate with the Extreme “i” chipset to

support expanded functionality, features, and flexibility.

Table 72: Optical interface specifications for the PoS modules

Parameter P3cSi P3cMi P12cSi P12cMi

Power budget 13 dB 9 dB 13 dB 10 dB

Operating wavelength 1310 nm 1310 nm 1310 nm 1310 nm

Transmit distance 15 km (9.32 mi) 2 km (1.24 mi) 15 km (9.32 mi) 500 m (0.31 mi)

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Extreme Networks WM-4T1i Spezifikationen Seite 251