Blackmagicdesign Videohub Installation And Operation Manual page 79

Videohubs with frame buffers (only the Workgroup Videohub) send an extra lock block:
FRAME BUFFER LOCKS: ↵
0 U ↵
1 U ↵
...
↵
Videohubs with serial ports next send a block which describes the direction of each serial port.
Each port has a direction of either "control" for the "In (Workstation)" setting, "slave" for "Out
(Deck)", or "auto" for "Automatic".
SERIAL PORT DIRECTIONS: ↵
0 control ↵
1 slave ↵
2 auto ↵
...
↵
Videohubs with pluggable cards (only Universal Videohubs) send three more blocks that
describe the hardware status of the ports. Missing video or serial ports have a status of "None";
input and output video ports will be "BNC" or "Optical" if they are present; serial ports will be
"RS422" if they are present.
VIDEO INPUT STATUS: ↵
0 BNC ↵
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 ↵
↵
Developer Information 79