12713020-002-2 Revision D – April 2004 SSU-2000 User’s Guide 213
Output Module Reference Data
Line Retiming Unit (LRU)
Installing a CTA in the SDU-2000
The SDU-2000 shelf has I/O interface connections on the rear panel for connecting
the SDU-2000 to the corresponding I/O adapter panels. The LRM I/O connections
are made from the 50-pin Micro-D female connectors on the rear panel of the
SDU-2000, through the CTA, and to the adapter panel using the appropriate cable.
Connectors J1 through J14 are labeled OUT-1 through OUT-14 and each connector
is associated with a specific I/O plug-in module slot. Symmetricom recommends
using connectors J5 through J12, which correspond to module slots A5 through A12
respectively (see Figure 8-22).
Figure 8-22. Installing the Cut-Through Assembly in the SDU-2000
Use the following steps to install the Cut-Through Assembly on an SDU-2000. Refer
to Table 8-17 for a description of the SSU-2000 and CTA I/O connector pin functions
and to Figure 8-23 for pin orientation.
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