Polycom EF2201 Brochure & Specs page 15

continuously sending the data via RS-232 to the control system (no polling is necessary). The Camera gating feature
allows you to setup an amount of time (up to 5 seconds) that the microphone must be gated on before a camera gating
indicator will be sent. This information can be used for camera positioning.
What about IP addressing?
Polycom has an IP accessory, the Vortex Ethernet Interface, that can be used to configure the Vortex devices remotely.
Logic Control Questions
How do you address logic pins? How many controls can you have?
The product has 24 logic input pins and 20 logic output status pins. The logic pins are most easily accessible through the
Conference Composer software. Logic input pins can be programmed to execute a preset, a macro, or an individual
command on either closure, opening, or held open/closed.
What about volume control?
Volume control can be done either by mapping a single level increment command to the logic pin, or multiple levels (like
a stereo volume) can be changed by creating a macro and assigning the macro to a logic input pin. The product supports
output gain control, input gain control, and matrix cross point control with simple RS-232 commands.
Is it re-configurable?
Absolutely. You can change pin assignments and functions very easily.
What are macros? Why would I need them?
Macros are a collection of up to 256 Vortex commands that can be executed with a single RS-232 command or contact
closure. You might use macros to ramp stereo volume, customize a preset, do sound masking, send commands to a video
codec for camera positioning, or anything else you can think of.
Can I combine multiple logic pins into a group to handle room combining applications?
Yes. The product supports 4 groups of pins where each group can have up to 5 logic pins assigned (32 combinations).
The groups can be used in room combining applications to select different presets or macros to execute based on the
combinations of input pins.
Can I get gating information from groups of mics on a single logic output pin?
Yes. You can assign the gating status of a single input or groups of inputs to a single logic pin. When assigning a group
of inputs (such as microphones 1, 2, and 6), you can choose whether you want the logic output status to be TRUE if ALL
microphones are gating (1 and 2 and 6 in this example), or if ANY of the microphones are gating (1 or 2 or 6 in this
example), or if ALL microphones are NOT gating or if ANY of the microphones are NOT gating. The syntax for the
command to assign status information to output pins is very easy to understand.
How can I configure the Vortex to automatically "duck" outputs based on microphone gating activity?
You can easily setup a macro to duck particular outputs based on gating activity of a collection of microphones. By
connecting a logic output pin (configured to show gating information for the particular microphones of interest) to a logic
input (tied to the ducking macro), you can duck outputs every time the collection of microphones gates on and "un-duck"
when the inputs gate off.
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