2-5
Cisco ONS 15454 DWDM Engineering and Planning Guide, Release 7.x
July 2006
Chapter2 Cards Specifications 2.1 Card Overview
Table2-5 CiscoONS 15454 DWDM Cards
Card Part Number Description
Optical Service Channel Cards
OSCM 15454-OSCM= The OSCM card has one set of optical ports and one Ethernet port
located on the faceplate. The card operates in Slots 8 and 10.
An OSC is a bidirectional channel connecting all the nodes in a ring.
The channel transports OSC overhead that is used to manage
ONS 15454 DWDM networks. The OSC uses the 1510 nm
wavelength and does not affectclient traffic. The primary purpose of
this channel is to carry clock synchronization and orderwire channel
communications for the DWDMnetwork. It also provides transparent
links between each node in the network. The OSC is an OC-3
formatted signal.
The OSCM is used in amplified nodes that include the OPT-BST
booster amplifier. The OPT-BST includes the required OSC
wavelengthcombiner and separator component. The OSCM cannot be
used in nodes where you use OC-N cards, electrical cards, or
cross-connect cards. The OSCM uses Slots 8 and 10 when the
ONS 15454 is configured in a DWDM network.
OSC-CSM 15454-OSC-CSM= The OSC-CSM card has three sets of optical ports and one Ethernet
port located on the faceplate. The card operates in Slots 1 to 6 and 12
to 17.
TheOSC-CSM is identical to the OSCM, but also contains a combiner
and separator module in addition to the OSC module.
The OSC-CSM is used in unamplified nodes. This means that the
booster amplifierwith the OSC wavelength combiner and separator is
not required for OSC-CSM operation. The OSC-CSM can be installed
in Slots 1 to 6 and 12 to 17 when the ONS 15454 is configured in a
DWDM network.
Optical Amplifiers
OPT-PRE 15454-OPT-PRE= The OPT-PRE card is designed to support 64 channels at 50GHz
channel spacing. The OPT-PREis a C-band DWDM, two-stage EDFA
withmid-amplifier loss (MAL) for allocation to a DCU. To control the
gain tilt, the OPT-PRE is equipped with a built-in variable optical
attenuator (VOA). The VOA can also be used to pad the DCU to a
reference value.You can install the OPT-PRE in Slots 1 to 6 and 12 to
17 when the ONS 15454 is configured in a DWDM network.
OPT-BST 15454-OPT-BST= TheOPT-BST card is designed to support up to 64 channels at 50 GHz
channel spacing. The OPT-BSTis a C-band DWDM EDFA with OSC
add-and-drop capability. When an ONS 15454 DWDM has an
OPT-BSTinstalled, it is only necessary to have the OSCM to process
the OSC. The card has a maximum output power of 17 dBm. To
control the gain tilt, the OPT-BST is equipped with a built-in VOA.
You can install the OPT-BST in Slots 1 to 6 and 12 to 17 when the
ONS 15454 is configured in a DWDM network.