Service manual

34
Connecting to the contact control interface
2
Installation
◆
Connecting to the contact control interface
Contact control
connector
The S
TELLAR
has 8 macro contact inputs. A macro contact input is an ON/OFF
switch controlled to execute a series of programmed commands.
For each of the eight inputs, you can record two macros - one for execution on con-
tact open, and one on contact closed, giving a total of 16 macros.
Example: As an example, switching between two contacts could be used to switch
between decoding audio channel 1 and channel 2.
Connect the external contact control equipment to the contact control connector.
External control equipment could be an I/O box or a control panel.
To set up a macro,
example
For an example of how to set up a macro, see To use commands, p. 109.
Codec control The contact control feature overrides both local control and remote control. The
event of contact control is recorded in a message sent to ROSA.
Pin allocation The connector marked CONTACT CONTROL is a 9-pin Sub-D connector
(female). The following table shows the connector and the pin allocation.
Note! Contact open = not connected (internal pull-up).
Contact closed = connected to ground.
Connector drawing Pin number Description
1 Input 1
2 Input 2
3 Input 3
4 Input 4
5 Input 5
6 Input 6
7 Input 7
8 Input 8
9 Ground
1
9