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CDD-880 Multi Receiver Router
Appendix F
F.4
Compatibility
All Comtech EF Data products are designed to ensure seamless cohesion when interfacing its
CDM-840s or demodulators to a single VMS Server. Table F-1 lists the available Comtech EF Data
products that are supported by Vipersat technology.
Table F-1. Comtech EF Data Product Compatibility Reference
Product
CDM-570/CDM-570L
CDM-570A/CDM-570AL
CDM-600/CDM-600L
CDM-625
CDM-625A
CDM-750
CDM-760
CDM-800*
CDM-805 (p/o CTOG-250)
CDM-840/ODM-840
CDM-850
SLM-5650A
CDD-562L
CDD-564/CDD-564L
CDD-880
CDD-890
* Standalone, or as part of CTOG-250 Comtech Optimization Gateway
F.5
Summary
Vipersat provides a dynamic mesh for remote-to-remote communication through its use of a
unique equipment topology and switching engine. It requires only a single transmitted SCPC
carrier from each remote, as opposed to having multiple carriers at each site. Corresponding
remote sites need available CDD-880 Multi-Receiver Router Expansion Units to receive the mesh
transmission; this establishes a true dynamic SCPC circuit between remotes.
Hardware costs are also significantly lower due to the ability to deploy the CDD-880s at both the
hub location and the remote sites. ACM maintains link connectivity by "down revving" the
MODCODs while maintaining a constant symbol rate and power level.
Max Data
Out-
In-
Rate
of-
Band
(Mbps)
Band
9.98
X
X
20
X
25
X
169
X
160
X
X
X
15.35
X
X
155
X
X
9.98
X
X
9.98
X
X
15.35
X
X
F–11
dSCPC Switching Methods
Mesh
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
MN-CDD880
Revision 2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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