Grass Valley 8900NET v.4.0.0 - Manual (Page 12)

12 8900NET Instruction Manual
Installation
Frame Alarm
The Frame Alarm is an external connector that reports frame status and
module health (8900-TF/TFN-V/A and 8900-FF/FFN frames) that can be
accessed through pins 8 and 9 of the RS-232 connector on the rear of the
frame. Details for connecting an external customer-supplied alarm are
given in the Gecko 8900 Series Frames Instruction Manual and the Gecko Flex
Frames Instruction Manual.
The Frame Alarm responds to conditions enabled on the 8900NET
Network Interface module with DIP switches S1 and S2 as given in
Table 2
on page 20 .
Note Earlier version 8900 frames used a BNC connector labeled SMPTE ALARM to
access the alarm connection. For information concerning the SMPTE Alarm
bus cable, refer to the Gecko 8900 Frames Instruction Manual.
RS-232 Communication Port Cable
The nine-pin RS-232 connector is used to connect the frame to a PC to ini-
tially set the frame’s network communication parameters. After network
communication is established, subsequent changes to these parameters can
be made using the network GUI.
CAUTION The RS-232 cable should be removed after completing the initial frame setup.
Leaving a long serial cable connected to the frame without a connection at the
other end may freeze the 8900NET module startup routine.
Note The cable used for this connection is a DB-9F to DB-9M, straight-through
cable available from Grass Valley as part of cable kit model 8900CAB
(10 ft./3 m length).
The communication parameters for the RS-232 connection are:
• Baud rate: 9600
• Data bits: 8
• Parity: none
• Stop bits: 1
• Flow control: none