breff Posted October 3, 2006 Posted October 3, 2006 No need for pull ups on 9800 if using bell trigger. The opinions I express are mine and are usually correct! (Except when I'm wrong)(which I'm not)
Guest Posted October 3, 2006 Posted October 3, 2006 Was a neg trig not mentioned here earlier, by moi perhaps?
Guest Posted October 3, 2006 Posted October 3, 2006 old you was right on this one and that to be honest shocked me, i assume you wired the bell and the dialler in series mate!!lmao Whats more shocking is you state i was right this time, have i been wrong everyother time? , or not to be possibly
Guest Posted October 3, 2006 Posted October 3, 2006 old i must say i think you are a wrong un Wanna spell that again, so i can reply?
arfur mo Posted October 4, 2006 Posted October 4, 2006 right arfur's gone and got his shotgun out of the closet 9800 SAB neg trig can be 'overcome' when not driving by the externall siren (depends on model) neg voltage being backfeed from the 'ringing' input, causing a 'floating voltage' not distinct enough to allow a 100% switching everytime on every operation. again dependent on dialler (pyronox as example) they need a clear 'high to low' sisgnal for reliable operation - the 9800 need 'asistance' in this for the digi output, the strobe output and the programmable outputs. so click of rusty trigger and blaammmm!! up to you james and OH, but like with iD and screened cable - if it aint broke don't fix it regs alan If you think education is difficult, try being stupid!!!!
arfur mo Posted October 4, 2006 Posted October 4, 2006 It does strike me as strage that the digipins, dont have pull ups on them as i thought it was a design standard of the molex foot print. hi James, these days its only loaded with gunpowder - not shot :'( as for the molex pins, makers (i'd assume) put their own 'bias ressister' on the piggyback board, with wired inputs anyone can liturally stick in any device they like. regs alan If you think education is difficult, try being stupid!!!!
Guest barry p Posted October 4, 2006 Posted October 4, 2006 It does strike me as strage that the digipins, dont have pull ups on them as i thought it was a design standard of the molex foot print. hi James, these days its only loaded with gunpowder - not shot :'( as for the molex pins, makers (i'd assume) put their own 'bias ressister' on the piggyback board, with wired inputs anyone can liturally stick in any device they like. regs alan hi alan so to connect sd1+ to 9800 panel trig a to bell/trig b to fire zone 8 fire/ +12v to 12 aux/ ov to -ve not sure about box tamp presume 24 tamp circuits thanxs barry
arfur mo Posted October 4, 2006 Posted October 4, 2006 It does strike me as strage that the digipins, dont have pull ups on them as i thought it was a design standard of the molex foot print. hi James, these days its only loaded with gunpowder - not shot :'( as for the molex pins, makers (i'd assume) put their own 'bias ressister' on the piggyback board, with wired inputs anyone can liturally stick in any device they like. regs alan hi alan so to connect sd1+ to 9800 panel trig a to bell/trig b to fire zone 8 fire/ +12v to 12 aux/ ov to -ve not sure about box tamp presume 24 tamp circuits thanxs barry hi barry, SD1 9800 +12 +12 AUX -12 -12AUX Trig 'A' -BELL you can put this trigger in the - bell output, but i'd put it in the - strobe output, as if the alarm keeps faulting it then won't keep anoying your key holder by repetative calls, but your decission Trig 'B' you have two programmable outputs on the main board, P1 & P2 one of these can be set to signal 'FIRE'. i would transpose those inputs 2, if memory serves me right priority is given to A, B then C if simultaneous signals arrive. a small point but we are into those on here if you did not follow the bias or pull up ressistor chat, place a 1.2k (0.5 watt) ressistor between +VE and the SD1 input (in the dialler), repeat for all inputs. this makes the input terminal of the SD1 a more 'solid' positive, so when the alarm trips the output makes a clean negative sweep input signal. (that bit was for james ) regs alan If you think education is difficult, try being stupid!!!!
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