PathFinder Software Configuration Guide - Trilogy Communications

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PathFinder Version 4.22 User GuideThe Logics form allows GPI card inputs and outputs to be configured:• LOGIC INPUTS Allows the logic inputs of fitted GPI cards to be allocated an inhibitlist and/or a logic output.The “polarity” may be configured such that the system expects acontact closure, or a contact opening, to action the inhibit list and/orlogic output.• INHIBIT LISTS Up to 128 inhibit lists are included, each of which may list up to 32source/destinations (crosspoints).When activated by a logic input, the crosspoints listed in theappropriate inhibit list will be broken/inhibited until the logic input isde-activated.• LOGIC OUTPUTS Allows up to 200 system-wide outputs to be configured. These areallocated to GPI card outputs, or to panel outputs.They may then be activated from panel keys.A number of logic outputs on each GPI card perform an “internalloopback” to a logic input, allowing complex logic scenarios to berealised.• LOGIC OUTPUTGROUPSUp to 32 groups of up to 4 logic outputs may be configured. Thisallows a single panel key to action a number of outputssimultaneously.9.3 GPI Card Additional FeaturesAdditional features available on board the GPI card include:A 12 input / output Field Programmable Gate Array3 tone sources programmable as Blip Tones3 audio “wav” filesLogic input and output monitoringAn audio bar-graph PPM using a simple LED display9.3.1 Field Programmable Gate ArrayThe Field Programmable Gate Array (or FPGA) device allows logic inputs 15 – 28 and logicoutputs 11 – 24 of the GPI card to be custom configured by Trilogy to provide more complexlogic functions. A typical example for the use of the FPGA would be to provide interlockingcontrol of switches and there outputs controlling the Transmission and Rehearsal lights in astudio complex.9.3.2 Tone SourcesThe GPI card has three 0dBu tone oscillators available on the first 3 ports of the card.Therefore if the GPI card is fitted in ports 91 – 96 of the matrix, the following ports wouldhave tone available as inputs to the matrix;• Port 91 - 315Hz• Port 92 – 1KHz• Port 93 – 2KHzPage 60 of 60 Issue 1 Trilogy Communications Limited
9.3.3 Tone BlipsPathFinder Version 4.22 User GuideThe tone sources above are also available as Tone Blips. The three Tone Blips are sampledsound files with duration set in the GUI. An example for the use of a Tone Blip could be toalert a destination panel when a particular source panel is calling. This function isprogrammed from the Panel Configuration form of the “sending” panel, as explained below.Select the Tone Blip view of the PanelConfiguration form from the Key View areaof the screen.Now, identify the key that is to incorporate the tone blip. Right click in the small windowcorresponding to that key and choose the required blip source, which in this case is derivedfrom the GPI card fitted in Port 91 – 96.When key 3 on the Studio Director panel is pressed, Edit A (the existing key target) will heara short burst of 1KHz tone at the start of the call.Trilogy Communications LimitedIssue 1Page 61 of 61
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PathFinder Software Configuration Guide - Trilogy Communications

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