© EPRAD Incorporated
4.3.17 I/O Boards
The eCNA-10 is normally used with the House/Aux termination board to provide digital inputs and
outputs. This board is available in two form factors, the 39431 and the 39445. An optional auxiliary
I/O board (39436) can plug onto either of these boards to provide an additional eight I/O points.
By default, the relays are internally mapped to their corresponding control flags. For example the
House Lights Up Relay is controlled by the House Lights Up control flag. However, relay control can
be re-assigned to any output control flag. For example, the Slide Projector relay can be controlled by
the Sound Non-Sync control flag.
Outputs are controlled by Program/Macro Instructions and Serial Commands and can be overridden
by manual control. The relays can be configured for
Pulsed
or
Maintained
. The pulse duration is
about two seconds.
Most inputs can also be reconfigured. For example, the Stop input could be re-assigned to the Pause
input control flag. Most inputs only require a momentary pulse in order to set the input control flag.
The duration of an input pulse should be at least 0.5 seconds.
The eCNA-10 also supports termination boards not described in this manual. These include the
following:
• 39490 GPIO Board
• 39432-1 Combo I/O Board
• 39432-2 Film I/O Board
• 39330 Console I/O Board (legacy)
• 39331 Booth I/O Board (legacy)
• 39332 Single I/O Board (legacy)
46
eCNA-10 Operation and Installation Manual Version 1.270-00