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8900NET Instruction Manual
Legacy Module Support
Installation of 8500 and 8800 modules shipped prior to November 15, 1999
will cause interruption of the 8900TFN frame communication bus.
Modules shipped after this date have pins removed in the rear connector to
provide compatibility. Compatible modules can be identified by the
absence of connector pins 10 and 50 (see
modules can be returned to Grass Valley for upgrade to the new connector.
Note
If an unmodified legacy module is installed in the frame, the frame commu-
nication bus will be interrupted and all module icons in the frame status
display will be red. This problem occurs with legacy modules only and does
not occur with Gecko 8900 Series modules.
Figure 14. Modified Legacy Module Connector
Top of Module
Pin 2
Pin 10
Figure
Pin 50
Typical
Pin 50
Removed
Using the 8900NET GUI
14). Incompatible legacy
27
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