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Highlights Of The 7820 One Way Transmitter Powered By Aux Pwr From

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HIGHLIGHTS OF THE 7820 ONE WAY TRANSMITTER POWERED BY AUX PWR FROM PANEL (12VDC @ 200MA) OR ALTRONICS 912 P/S WITH BATTERY BACKUP OUTPUT POWER 2.5 WATTS 9 VOLT EMERGENCY BATTERY (1.5 MINS OF TRANSMISSION) 4 ZONES OF INFORMATION OR ECP CONTACT ID CAPIBLE XMITTS 60 MESSAGES OVER 6 MINS. CAN BE TRIPPED WITH PULSED OR STEADY BELL OUTPUT RADIO FAULT OUTPUT TTL LEVEL 5VDC( ANTENNA OR INTERNAL FAULTS) PROGRAMMING PROGRAMMED BY A 7720P, 7715 OR A COMPUTER USING A 7720RS ADAPTER SENDING TEST TEST BY SHORTING TEST PINS ON RADIO SHIFT-T (8) ON 7720P PROGRAMMER YELLOW LIGHT WILL FLASH RAPIDLY INDCATING TEST IS IN PROGRESS WIRING PIN 1 OF RADIO TO AUX POS. ON CONTROL PANEL OR POS. OF POWER SUPPLY PIN 2 OF RADIO TO AUX NEG. ON CONTROL PANEL AND NEG. OF POWER SUPPLY ZONE INPUT (5-8) TO BELL POS. OR N.O. CONTACT (NON-INVERTED) COMMON OF CONTACT TO AUX POS. ZONE INPUT (5-8) TO N.C. CONTACT (INVERTED) COMMON OF CONTACT TO AUX POS. OR NEG. BELL ON DSC PANELS ONLY ZONE INPUT (7-8) ZONES 1 & 2 ONLY GRD TRIP ( J2 JUMPER) N.O. CONTACT TO ZONE AND CONTACT COMMON TO CKT GRD (INVERT ZONE) ZONE INPUT (7-8) ZONES 1 & 2 ONLY GRD TRIP ( J2 JUMPER) N.C. CONTACT TO ZONE AND CONTACT COMMON TO GRD (NON-INVERT ZONE) • IF YOU MOVE J2 JUMPER AND USE ONLY ONE ZONE THE OTHER ZONE MUST BE INVERTED OR STRAPED OUT TO CKT GRD. RADIO FAULT OUTPUT ( PINS 10 & 11) TO A 24HR ZONE ON THE CONTROL PANEL CHECK WITH METER FOR N.O. OR N.C. TO SWITCH MOVE J1 JUMPER TROUBLESHOOTING NORMAL CONDITION IS YELLOW LIGHT FLASHES ONCE EVERY SEC. NO RED LIGHT GREEN FLASHS DURING TRANSMITTION IF YELLOW IS SLOW FLASH THEN BATTERY IS LOW IF RED LIGHT IS ON CHECK BATTERY OR ANTENNA IF RED LIGHT IS FLASHING ONCE PER SEC. RADIO IS IN CHARGING MODE MUST POWER RADIO DOWN AND POWER UP BATTERY FIRST THEN DC SHIFT- S WILL DISPLAY STATUS OF ZONES, TAMPER, TEST INPUT, CHARGING CONDITION, BATTERY CONDITIONS AND FAULT CODES SHIFT-E WILL DISPLAY THE LAST DETECTED AND LAST REPORTED FAULTS COMMON PROBLEMS BATTERY LOW……. LIFE EXPECTANCY OF BATTERY IS ONLY 1-2 YEARS WATER OR CONDENSATION BUILDUP IN ANTENNA CONNECTIONS MUST BE POWERED UP BATTERY FIRST THEN DC CHARGING VOLTAGE CHECKING BATTERY REMOVE DC CHARGING VOLTAGE INPUT FROM RADIO TRIP TEST OR ZONE FORCE RADIO TO TRANSMIT METER FROM PIN 2 (DC GRD) AND FUSE ON RADIO FOR 2 MINS S/B ABOVE 12.3 VDC AT ALL TIMES CHECKING SIGNALS 1. DETERMINE CS PRIMARY TOWER CHECK DIAG. MESSAGES. 2. CHECK INDVIULAL TOWERS FOR REPEAT COUNT IF PASS/FAIL NOT ACTIVE 3. IF LOW S.S. RAISE ANTENNA OR USE A LARGER ONE. 4. IF LOW REPEAT MOVE ANTENNA 1’ LEFT, RIGHT, UP OR DOWN 5.RETEST DIAG. MESSAGES.