12713020-002-2 Revision D – April 2004 SSU-2000 User’s Guide 211
Output Module Reference Data
Line Retiming Unit (LRU)
3. Tighten the captive screws located at the top and bottom of the module front
panel.
Installing a Cut-Through Assembly in the SSU-2000
The SSU-2000 shelf has I/O interface connections on the rear panel for connecting
the SSU-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 SSU-2000 rear panel,
through the CTA, and to the adapter panel using the appropriate cable. Connectors
J10 through J18 on the rear panel are labeled I/O-1 through I/O-9; each connector
is associated with a specific I/O plug-in module slot. Symmetricom recommends
using connectors J13 through J16, which correspond to module slots A6 through A9
respectively (see Figure 8-21).
Caution: To avoid possible damage or intermittent failure, ensure that
you have completely inserted the module into the shelf and that you
have securely tightened the captive screws. A partially inserted
module can easily become damaged and cause intermittent failures.
Caution: To avoid signal faults, do not install a Cut-Through
Assembly on top of a Summer Adapter.
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