Bosch Appliances D9412GV4 Power Supply and Power Outputs, Power Supply - Primary, 4.1.1, 4.1.2

20 en Power Supply and Power OutputsControl Panel

4	Power Supply and Power Outputs
4.1	Power Supply - Primary
4.1.1	Primary (AC) Power Circuit
	The primary source is a 16.5 VAC, 40 VA, internally-fused transformer (Bosch Security
	Systems, Inc. Model D1640). The control panel draws 225 mA when idle and 300 mA when in
	an alarm state. The total available auxiliary current is 1.4 A. Transient suppressors and spark
	gaps protect the circuit from power surges. This protection relies on the ground connection at
	Terminal 10. Ensure that you connect Terminal 10 to a proper ground. Refer to Connecting
	Earth Ground, page 7.
	AC Power Fail
	The system indicates an AC power failure when Terminals 1 and 2 do not have power. The AC
	Fail Time parameter sets the number of minutes or seconds without AC power before the
	control panel acknowledges the failure and the number of minutes or seconds after the power
	returns before the control panel acknowledges restored power.
	Refer to the D9412GV4/D7412GV4 v2.00 Program Entry Guide (P/N: F01U265459) for
	additional information about AC Fail Time and UL 864 requirements.
	Reference the table below to view the Modem4 communication format signals.
Modem4 Events		Modem4 code	Modem4 Code	Contact ID	Contact ID Codes
		D6500 Mode	Bosch SIA Mode	Events
AC Fail - mains power supply		Pssss	NAT	AC Loss	1 301 00 000
AC Restore - mains power supply		Rsss0	NAR	AC Loss	3 301 00 000
Table 4.1: AC Power Fail
4.1.2	Installing the Transformer
	Notice!

i	Do not short-circuit the terminals of the transformer. Shorting the terminals opens the inter-
	nal fuse, causing permanent failure. Connect the transformer to Terminals 1 and 2 of the con-
	trol panel before plugging it into the power source.

1.Use 18 AWG (1.22 mm) wire (minimum) to connect the transformer to the control panel. The wire length should be as short as possible. The maximum length is 50 ft (15 m). Connect the battery and plug in the transformer.

2.Route telephone and sensor loop wiring away from any AC conductors, including the transformer wire.

AC wiring can induce noise and low level voltage into adjacent wiring. Route data wiring away from AC and telephone wiring.

i	Notice!
	Always connect the battery first and then plug in the transformer.

3.Connect the battery. Refer to Installing the Battery, page 21

4.Plug the transformer into an unswitched, 120 VAC 60 Hz power outlet only.

5.Secure the transformer to the outlet with the screw provided.

2012.12 02 F.01U.265.462 UL Installation Instructions Bosch Security Systens, Inc.