1 BNC↵
…
↵
VIDEO OUTPUT STATUS:↵
0 BNC↵
1 BNC↵
…
↵
SERIAL PORT STATUS:↵
0 RS422↵
1 RS422↵
…
↵
Status Updates
When any route, label, or lock is changed on the Videohub Server by any client, the Videohub
Server resends the applicable status block, containing only the items that have changed. For
example, if serial port 6 has been unlocked, the following block will be sent:
SERIAL PORT LOCKS:↵
5 U↵
↵
If multiple items are changed, multiple items may be present in
the update:
OUTPUT LABELS:↵
7 New output 8 label↵
10 New output 11 label↵
↵
If a card is plugged into or removed from the Universal Videohub, it will send hardware status
blocks for the video inputs, video outputs, and serial ports on that card.
Requesting Changes
To update a label, lock or route, the client should send a block of the same form the Videohub
Server sends when its status changes. For example, to change the route of output port 8 to
input port 3, the client should send the following block:
VIDEO OUTPUT ROUTING:↵
7 2↵
↵
The block must be terminated by a blank line. On receipt of a blank line, the Videohub Server
will either acknowledge the request by responding:
ACK↵
↵
or indicate that the request was not understood by responding:
NAK↵
↵
80Developer Information
To Next Page
Loading...
