Bosch D185 Installation Manual

Reverse Polarity Signaling Module

D185

en Installation Instructions

Reverse Polarity Signaling Module	Notices | en	3

1 Notices

These instructions cover the installation of the D185 Reverse Polarity Signaling Module in a fire system supervised by a fire alarm control panel (FACP) or a combination Burglary/Fire control panel.

Before installing the module, become familiar with the Installation and Operation Guide for the control panel you are using.

Install, test and maintain the module according to these instructions, NFPA 72, local codes, and the authority having jurisdiction (AHJ). Failure to follow these instructions can result in failure of a detector to initiate an alarm event. Bosch Security Systems, Inc. is not responsible for improperly installed, tested or maintained devices.

Warning!

!Follow these instructions to avoid personal injury and damage to equipment.

NFPA 72 requires that you perform a complete system wide functional test following any modifications, repair, upgrades or adjustments made to the system’s components, hardware, wiring, programming and software/firmware.

2 Description

The D185 Reverse Polarity Signaling Module connects a control panel with either a single set or a pair of leased telephone company (telco) lines in NFPA 72 remote station applications. The module’s three input terminals accept alarm, trouble, or supervisory input from the control panel, and the module transmits this information to a monitoring station after a built-in 20±5 sec) delay. This module operates with either a 12 VDC or 24 VDC supply. All circuits are power limited.

The module can be used with the Bosch Security Systems, Inc. control panels indicated in the following table. You can also use the module with non-Bosch, UL Listed control panels where it is referenced as compatible in the control panel's installation instructions.

	Control panels	Compatible relays	See section:
	Active:
	FPD-7024 panel	D275, PAM-4	Wiring to an FPD-7024 FACP,
			page 7
	G Series (GV2 and higher)	D275, PAM-4	Wiring to a G Series control
	panels1		panel, page 8
	Legacy:
	D7024 panel	See control panel documentation on the Bosch website
		(http://www.boschsecurity.com)
	G Series (prior to GV2)
	panels2
	D9412, D7412, and D7212**
	panels
	DS9400 panel*

Bosch Security Systems, Inc.

Installation Instructions

2013.05 | 03 | F.01U.034.781

4 en | Notices Reverse Polarity Signaling Module

Control panels	Compatible relays	See section:

1 G Series (GV2 or higher) = GV4 (D9412GV4, D7412GV4, and D7212GV4**), GV3 (D9412GV3, D7412GV3, and D7212GV3**), and GV2 (D9412GV2, D7412GV2, and D7212GV2**) panels

2 G Series (prior to GV2) = D9412G, D7412G, and D7212G** panels

* Legacy products were investigated to comply only to UL864 8th edition

** indicates products which are not UL listed for commercial fire applications

Figure 2.1: D185 reverse polarity signaling module

	1	Input terminals	10	Connects to telco line for sending
				supervisory signals
	2	Earth Ground	11	Connects to telco line for sending
				alarm\trouble signals
	3	Common	12	Connects to telco line for sending
				alarm\trouble signals
	4	Connects to control panel Aux or	13	Not used
		external power supply (12 VDC or
		24 VDC)
	5	Connects to Trouble Relay on control	14	Connects to end-of-line (EOL)
		panel		supervisory relay (such as, D275,
				PAM 4)
	6	Connects to Supervisory Relay on	15	Alarm signal adjuster
		control panel
	7	Connects to Alarm Relay on the control	16	Supevisory signal adjuster
		panel
	8	Output terminals	17	Alarm Test LED
	9	Connects to telco line for sending	18	Alarm Test switch
		supervisory signals

2013.05 | 03 | F.01U.034.781

Installation Instructions

Bosch Security Systems, Inc.

Reverse Polarity Signaling Module	Notices | en	5

3 Operation

Under normal conditions, the module sends a steady 10 mA of current to the alarm telco outputs and 14 mA of current to the supervisory output which connects to a monitoring station. In an alarm or supervisory condition, the module reverses the output current polarity and signals a trouble condition by interrupting the output voltage and current.

	Input		Output
Alarm	Supevisory	Trouble	Alarm	Supervisory
No Current	No Current	No Current	Normal	Normal
No Current	No Current	Active High	No Current	Normal
No Current	Active High	No Current	No Current	Reversed Polarity
No Current	Active High	Active High	No Current	Reversed Polarity
Active High	No Current	No Current	Reversed Polarity	Normal
Active High	Active High	No Current	Reversed Polarity	Reversed Polarity
Active High	Active High	Active High	Reversed Polarity	Reversed Polarity

	Table 3.1: Input and output states
3.1	Alarm and trouble responses (alarm output telco lines)
	The module responds to an alarm input from the control panel by reversing the alarm telco
	output polarity. The module responds to a trouble input from the control panel by interrupting
	the current to the alarm telco outputs
	If the control panel sends an alarm during a trouble signal, the module overrides the trouble
	telco output and responds with an alarm telco output (reversed polarity).
3.2	Supervisory response (supervisory output telco lines)
	The module responds to a supervisory signal input by reversing the polarity of the supervisory
	telco outputs. A second set of telco lines must be connected.
3.3	Alarm test
	The Alarm Test Switch (Item 18 in Figure 1 on page 2) disables module output during testing
	that triggers a trouble output from the module during testing. Generally, this switch is off but
	during an Alarm Test, you must move the switch to the ON position. Turning on the Alarm Test
	Switch lights the Alarm Test LED (Item 17 in Figure 1).
4	Installation

Notice!

Install the module within 20 ft (6 m) of the control panel with a minimum of 22 AWG (0.34 mm2) wire. Ensure all wiring is in conduit.

Install the D185 in a system by:

Bosch Security Systems, Inc.

Installation Instructions

2013.05 | 03 | F.01U.034.781