Network Router User Manual

1-5
Cisco ONS 15530 Configuration Guide and Command Reference
78-14227-01, Cisco IOS Release 12.1(10)EV2
Chapter 1 Product Overview
Cisco ONS 15530 Hardware Features
On the trunk side, the transponder line card has an output (laser) power in the range of 5 to 10 dBm and
a receive detector sensitivity range of –22 to –8 dBm. For more information on power budget planning,
refer to the Cisco ONS 15530 Planning and Design Guide. For power budget specifications for
individual components, refer to the Cisco ONS 15530 Hardware Installation Guide.
OADM Modules
The Cisco ONS 15530 supports one OADM module in an unprotected configuration or two OADM
modules for a protected configuration. Each OADM module can multiplex and demultiplex a band of
4 channels. Channels not filtered by the OADM module are passed on to the next OADM module. In a
protected configuration, both OADM modules support the same band of channels to provide fault
tolerance.
Carrier Motherboards
The carrier motherboard installs into a single shelf slot and accepts two half-size modules. The carrier
motherboard supports the OSC modules and the VOA modules.
OSC Modules
The OSC cards support an optional out-of-band management channel for communicating between
systems on the network. Using a 33rd wavelength (channel 0), the OSC allows control and management
traffic to be carried without requiring a separate Ethernet connection to each node in the network. Up to
two OSC modules can be installed in the carrier motherboard, one card for the west direction and one
for the east direction.
The OSC always terminates on a neighboring node. By contrast, data channels may or may not be
terminated on a given node, depending on whether the channels on the OADM modules are treated as
either express (pass-through) or add/drop channels.
VOA Modules
The Cisco ONS 15530 supports VOA (variable optical attenuator) modules that work with EDFAs
(erbium-doped fibre attenuators) to expand DWDM optical networks over greater distances. The VOA
modules include PB-OE (per-band optical equalizer) modules and WB-VOA (wide-band variable optical
attenuator) modules. These modules are installed in the carrier motherboard.
PB-OE Modules
The PB-OE modules select and attenuate one or two specific 4-channel bands. The Cisco ONS 15530
supports eight single band PBOE modules for bands A through H and four dual band PB-OE modules
for bands AB, CD, EF, and GH.