Usb Power - Bosch B9512G Installation Manual

Control panels
When using Output A or Output B to activate notification appliance circuits in UL Listed fire
alarm applications, install a D192G.
Power restricted for Fire and Combined Fire and Burglary Systems
Fire systems are prohibited from using the battery for supplying alarm power. Use the fire
system power formula that follows to calculate the current available for fire and combined fire
and burglary systems.
Fire system power formula
Calculating the current available at Terminals 6 and 7 for fire and combined fire and burglary
systems:
1.
2.
In formula format: 1.4 A – NSC current required (Step 1) = Alarm current available
Refer to Approved applications for module or accessory current requirements
5.4.2 Terminal 8
8
Terminal 8 provides continuous positive (+) 12.0 VDC Nominal power. Output C interrupts the
power at Terminal 8 when activated. Use Terminal 8 to power smoke detectors or other
devices that reset by interrupting power.
Verify and reset Output C
The default program sets Output C (Terminal 8) as a verification and reset output. Refer to
Output Parameters and Point Assignments in the control panel Program Entry Guide for
instructions on programming verification and resetting outputs and points.
Performing a sensor reset at a keypad produces a five-second activation of verification and
reset outputs. The control panel ignores verification and resettable points during the five
seconds.
5.5

USB power

USB
In addition to connecting RPS or the Installer Services Portal programming tool (available in
Europe, Middle East, Africa, and China) to the control panel for programming, you can use the
USB port on the control panel to power USB-powered devices.
When enabled, the USB port provides 500 mA of 5 V power. The port draws the power from
the control panel. Make sure that there is enough power for all the powered devices you want
to connect to the system.
Enabling USB power:
4
The USB POWER STATUS LED lights when power to the USB is turned on.
You can disable USB at any time. Use the Installer menu or press the control panel RESET
button 3 times.
Bosch Security Systems B.V.
Add together the current draws for all devices connected to Terminals 3, 26, and 30, and
the ZONEX connector. This is the total current required for the normal standby condition
(NSC).
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.
3
Do one of the following:
Press the control panel RESET button 3 times.
Use the keypad Installer menu (refer to [7] USB Power).
UL Installation manual
On-board outputs | en 23
2019-12 | 06 | F.01U.304.001