Optical Amplifier (Edfa) Modules; Optical Amplifier Module Descriptions - Cisco GS7000 Installation And Configuration Manual

Optical Amplifier (EDFA) Modules

Optical Amplifier Module Descriptions

Erbium-doped fiber amplifier modules are available in two categories: broadcast and
narrowcast. Broadcast EDFAs are used for the amplification of broadcast signals
which are carried by a single optical channel anywhere between 1530 nm and 1565
nm. Narrowcast EDFAs are used for the amplification of multiple optical channels
carrying narrowcast signals. For uniformity of performance, narrowcast EDFAs need
to be gain flattened in the designated operating wavelength range between 1528 nm
and 1562 nm.
Broadcast EDFAs are available in 17 dBm, 20 dBm, and 22 dBm versions.
Narrowcast EDFAs are available in 17 dBm or 21 dBm versions to fit any
architecture for requirements like DWDM narrowcasting. Both broadcast and
narrowcast EDFAs can be operated in constant power and constant gain modes. The
default setting for a broadcast EDFA is constant power mode, while the default
setting for a narrowcast EDFA is constant gain mode.
EDFA modules are single-wide, single-output, devices. Each module is connected to
one input fiber and one output fiber through optical fiber connectors on the side of
the module housing. The modules can be mounted in slots 3 through 6 and 8
through 11 on the optical interface board in the housing lid. The modules use a
color-coded reversible pin adaptor. One side is blue and the other side is red. The
pin alignment is slightly different on the two sides.
OL-29936-01

Optical Amplifier (EDFA) Modules

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