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14 | OMNI POWER AND CONTROL INTERFACE SYSTEMS
FIGURE 2.4– VALID IC-124 CONTROL CONNECTION SUPPORT
HDMI Connector
The HDMI-style connector has the same profile as an HDMI cable but is not a universal HDMI design and is not
carrying video data or intended to be interpreted by a video codec. Many lower cost or compact cables skip
connection points or bend contact points very easily. It is important to use certified cables for consistency of signal
to be interpreted by the system. Specifications on the cables tested for carrying the IC-124 signal are listed in
Table 1.4 – Cables from Power and Control Cabinets to Connection Panel. Med Associates only supplies cables
that have been vetted and tested to be functional in our applications.
Connection panel Connectivity
28 Volts powered connection panels, including OC-112, OC-124, and OSC-112, are controlled by the IC-124
interface module using HDMI connections. Control signal for a device downstream from the control interface
always enters through the COM port and, if chained on, exits through the AUX port. IC-124 cards can recognize
up to four devices connected by daisy chaining panels, but only the first twenty-four powered I/Os in a chain will
be able to communicate with the card.
The ON LED is located on a connection panel between and slightly above the HDMI AUX and the HDMI COM
ports (see Figure 2.3 label E). If the panel is not receiving power the ON LED will remain off. When a connection
panel is correctly connected to the control interface and powered to 28 Volts the green ON LED will be lit solidly.
A powered connection panel before communicating with the control interface will flash the ON LED in a one
second on to one second off pattern. If the panel is receiving less than 28 Volt power the ON LED will flash
rapidly till the internal stored electrical energy is depleted. Certain communication errors will enable a slow blink
of the LED, such as three seconds on to one second off, or other patterns. If a connection panel is flashing in an
irregular pattern or a pattern other than an even one second on / one second off, contact Med Associates support
as the panel will not communicate normally till this is resolved.
Med Test
The Omni Control system operates with Med-PC 6, following MedState Notation (MSN) coding language.
Through Med-PC 6 the system conducts operations and interfaces with experimental setups, providing
comprehensive control and data acquisition capabilities.
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