i-on1000EX InstallationPage 172.Tilt the edge of the fixing plate and then slide it ashort distance parallel to the body of the proxreader.3. Slide the fixing plate away from the readerbody, along the cable.Figure 26 Opening External Prox ReaderFigure 27 shows the details of the external proxreader backplate:1. Fixing hole.2. Cable entry.3. Anchor for retaining screw.Figure 27 External Prox Reader Fixing PlateFit External Prox ReaderUse M4 25mm countersunk screws at both fixingholes when mounting the back of the keypad onthe wall. Ensure the screw has a thread suitablefor the wall material.Connecting Remote Prox Reader toKeypadSegregate the external prox reader cable fromany other wiring such as mains supply cables,telephone cables, computer network cables andR.F. cables. Use cable ties to keep cablesseparated.Keep the prox reader cable clear of cablessupplying sounders or extension loudspeakers.Figure 28 shows the wiring connections at thekeypad.Figure 28 Connecting the External Prox ReaderTone Volume – All KeypadsTo alter the volume of non-alarm tones from thekeypad, adjust the keypad sounder volume control(see Figure 7, 11, 12 or 13):LouderNote: This control changes thevolume of non-alarm tones (forexample Exit/Entry tone). Thevolume of alarm tones is fixed.SofterEngineering KeypadAn engineering keypad is a modified i-kp01 thatcan be plugged into a dedicated connector on thecontrol unit PCB (item 6 in Figure 3) or any of theexpanders (see Figure 14, 15 or 16). Anengineering keypad does not need to beaddressed, and will always be recognised by thecontrol unit as an engineering keypad.You can use an Engineering Keypad to programthe system without being tied to any of theinstalled keypads. If you wish to move anEngineering keypad from one connection point toanother, you can do so without removing powerfrom the system.Step 4. Fit and ConnectExpandersBoth wired and radio expanders are supplied inthe same plastic case. Use M4 25mmcountersunk screws in all three fixing holes whenmounting the back of the case on the wall. Ensurethe screw has a thread suitable for the wallmaterial. See Figure 14, 15 or 16 for the positionof fixing holes and cable entries.Note that radio expanders are not approved forSecurity Grade 3 systems.1123