Bosch Appliances Home Security System D9412GV2 Manual De Usuario

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D9412GV2/D7412GV2 | Operation and Installation Guide | 6.0  Power Outputs 
 
26 
Bosch Security Systems, Inc. | 5/05 | F01U003641B 
 
6.4.2 
Terminals 6 and 7 
When activated, Terminals 6 (Relay A) and 7 (Relay 
B), provide positive (+) 10.2 VDC to 13.9 VDC power 
output. Use the power at Terminals 6 and 7 to power 
bells, siren drivers, piezoelectric fire sounders, 
electronic horns, or other devices.  
Programming determines the format of the output and 
the conditions that activate it. One PTC protects 
Terminals 6, 7, and 8 against shorts.  
Available Power 
The system combines the 1.4 A of primary power 
produced by the power supply with the secondary 
power source (the battery) to produce a total of 2.0 A 
of alarm power at 10.2 VDC to 13.9 VDC. Terminals 6 
and 7 share the available alarm power. 
Power Restricted for Fire and Combined Fire and 
Burglary Systems: Fire systems are prohibited from 
using the battery for determining alarm power. Use the 
fire system power formula that follows to calculate the 
current available for fire and combined fire and 
burglary systems.  
6.4.3 
Fire System Power Formula 
To calculate the current available at Terminals 6 and 7 
for fire and combined fire and burglary systems: 
1.  Add together the current draws for all devices 
connected to Terminals 3, 8, 24, and 32, and the 
accessory connector. This is the total current 
required for the normal standby condition (NSC). 
2.  The current available for NSC is 1.4 A. Subtract 
the NSC current required calculated in Step 1 from 
the NSC current available, 1.4 A. The difference is 
the alarm current available for Terminals 6 and 7. 
In formula format:  
1.4 A  
   NSC current required 
(Step 1) 
Alarm current 
available 
Refer to the D9412GV2/D7412GV2 Approved 
Applications Compliance Guide
 (P/N: F01U003639) for 
module or accessory current requirements. 
6.4.4 
Terminal 8  
Terminal 8 provides continuous positive (+) 10.2 VDC 
to 13.9 VDC power. Relay C interrupts the power at 
Terminal 8 when activated. Use Terminal 8 to power 
smoke detectors or other devices that are reset by 
interrupting power. One self-resetting circuit breaker 
protects Terminals 6, 7, and 8 against shorts. 
Verification/Reset Relay 
The default program sets Relay C (Terminal 8) as a 
verification and reset relay. Refer to Relay Parameters 
and Point Assignments in the D9412GV2/D7412GV2 
Program Entry Guide
 (P/N: F01U003636) for instructions 
on programming verification and reset relays and 
points. 
Performing a sensor reset at a keypad produces a five-
second relay activation of verification/reset relays. The 
control panel ignores verification/reset points during 
the five seconds.