Cyan Z-Series Engineering and Planning Guide Release 5.0
700-0023-05-00 Rev. 1 © 2013 Cyan, Inc. – All Rights Reserved. Page 51
Figure 14: AWG-40 External Module
Dispersion Compensating Modules (DCMs) may be used to support the LAD-40E module. The DCMs are
based on Fiber Bragg Gratings (FBGs) and exhibit lower loss than standard fiber-based DCMs. The DCMs
are housed in a standard LGX module, allowing three DCMs to be installed in a 1
RU, 19-inch rackmount
shelf/frame. The DCMs are connected to the LAD-40E Mid-stage port using a fiber jumper.
Note: If a DCM is required with a LAD-40E module, you must use a Fiber Bragg Grating DCM. If a
DCM is not required for your configuration, a 3dB loopback attenuator must be connected to the
LAD-40E Mid-stage port. The loopback attenuator is provided as part of the LAD-40E Fiber Jumper
Kit. For additional information on available DCMs, see Dispersion Compensation Modules
starting on page 151 in this guide.
The configuration example below shows two LAD-40E modules installed in a Z33 shelf and connected to
two AWG-40 modules and DCMs.
Z33 Shelf
AWG-40 Module
LAD-40E Mid-Stage port
connects to DCM
LAD-40E Line port
connects to trunk
Notes:
LAD-40E Modules
Horizontal Fiber
Management Panel
Horizontal Fiber
Management Panel
AWG-40 Module
DCMs
CYANOPTICS CYANOPTICS
PME-412 Modules
Figure 15: LAD-40E and AWG-40 Installation Example
For details on provisioning cross-connects or using the A-to-Z provisioning tool for the LAD-40/LAD-40E
modules, AWG-40 modules, and associated Z-Series line cards, see the Planet Operate User Guide.
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