Specifications

UDM Hub Control Protocol
110
UDM-0404 4x4 Multi-Format Distribution Hub
Command Summary
Basic Commands
Input Numbering
The UDM has a flexible architecture to maximise use of the available matrix. The UDM1604 is a 16 output
port hub, with four analog input ports and four TVM input ports. Each analog input port can be used for a
variety of input types, VGA, S-Video, component and composite, and input ports are specified by a main
number, together with a sub input number if the input can be split.
The Input number is specified as follows:
If the Input is of type 1 (composite) then the Sub input field (with values 1,2,3) can further specify which of
the three composite inputs on an Input to use for this connection.
Input A would come from the 'A' labelled VGA connector or if the cascade input is selected for this input,
from the upstream hub.
Port Numbering
There are 16 output ports, numbered 1 to 16.
Connect Input to Port
Selects the input on the ports specified by the Port property, or if non zero, the port specified in the command.
UDP
Command 0 1 2 3 4 5 6
Connect 1 X Port Input
Disconnect 6 X Port
Cascade input select 9 X Input Cascade value
Lock Port 2 X Port
Unlock port 3 X Port
Query port 12 X Port
Get port or input name 79 X Port Sub port Type
Get receiver info 88 X Port
Send remote command 87 X Port Remote
command
Remote
parameters
Get remote serial buffer 89 X Port Terminator
Set hub ID 67 X Length of ID string Start of string (data)
Get hub or port ID 78 X Port
Reset 99 X 156
Set Protocol 75 X Protocol
Set port range 66 X Min Max
Value Description Value Description
1 Input A 5 TVM input 1
2 Input B 6 TVM input 2
3 Input C 7 TVM input 3
4 Input D 8 TVM input 4
Byte #012345
Byte value 1 User Defined Port Input Sub Input Input Type