Grass Valley 8900NET v.4.0.0 - Manual (Page 33)

8900NET Instruction Manual 33
Using the 8900NET GUI
Legacy Module Support
Installation of 8500 and 8800 modules shipped prior to November 15, 1999
will cause interruption of the 8900TFN and 8900-FFN frame communica-
tion 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
Figure 15 ). Incompatible
legacy modules can be returned to Grass Valley for upgrade to the new con-
nector.
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 and Gecko Flex modules.
Figure 15. Modified Legacy Module Connector
Pin 10 Pin 50
0612-18
Pin 2
Top of Module
Pin 50
Removed
Typical