Optical Interface Specifications For The Pos Modules - Extreme Networks Alpine 3804 Hardware Manual

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.
Table 72: Optical interface specifications for the PoS modules
Parameter
Power budget
Operating wavelength
Transmit distance
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.
Extreme Networks Consolidated Hardware Guide
P3cSi P3cMi
13 dB 9 dB
1310 nm 1310 nm
15 km (9.32 mi) 2 km (1.24 mi)
Configuring I/O Modules
P12cSi P12cMi
13 dB 10 dB
1310 nm 1310 nm
15 km (9.32 mi) 500 m (0.31 mi)
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