PathFinder Software Configuration Guide - Trilogy Communications

PathFinder Version 4.22 User Guide9. LOGIC FACILITIES9.1 IntroductionIn many installations of the Commander Intercom system, it is necessary for the system tohave control or be controlled, by third party equipment. This requirement is supported by:• The optional General Purpose Interface card (or GPI card) within the matrix• Local logic inputs and outputs on the standard rack mounting range of control panels.It is important to note that the more complex facilities are only available when the optionalGPI card has been fitted. See the Commander Installation Guide for information oninterfacing the GPI card to third party hardware.9.2 GPI Card Overview (500-10-00)The GPI card occupies one card slot within the matrix and depending on the type ofTalkback Controller card fitted, the system can support a maximum of either 4 or 6 cards.The GPI card is added initially from the Overview Page, as explained in Chapter 6.3. TheLogic form (below) is displayed when the tab at the bottom of the Overview page is selected.Each GPI card has 40 logic inputs and 64 logic outputs. These comprise 28 “real” physicalinputs and 24 “real” physical outputs. The remainder are special software controlled inputsand outputs for more complex logic control and are not directly available on the rearconnector unit. These functions are shown in the table below.Trilogy Communications LimitedIssue 1Page 59 of 59