captured while a message is being sent, it will be queued in the buffer until
the first message completes, then the next message will be sent.
If the Mode is set to Request, messages in the Message Buffer are only sent
when the Request Character is received.
The output format used is selected among a small group of formats with the cap-
ability to output data at 5ns resolution. Event Broadcast Output formats are
detailed in "Event Broadcast Time Code Formats" on page552.
Event Broadcast [1204-23]: Specifications
Inputs/Outputs: (1) Event Trigger Input, (1) Event Broadcast Output
Signal Type and Connector:
Connector J1 – (RS-232 Output) RS-232 DB9F
Connector J2 – (Event Input) TTL BNC
Event Resolution: 5ns
Minimum Time Between Events: 20ns
Message Buffer Size: 512 messages
Ordering Information: 1204-23: Event Broadcast
Figure 5-66: Model 1204-23 option card rear plate
Output Port: Pin Assignments
Table 5-29: Output connector DB-9: pin-out
Pin Number Signal Name Function
Top row of 5 pins
1 NC No Connection
2 SERIAL_OUT_TX RS-232 Transmit data
546 SecureSync 2400 User Manual
APPENDIX
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