Bosch Appliances DS7400XI Control Terminal Wiring, Loop + Zone, Loop + Aux. Power Input Or PO2

Shared cable is not recommended for keypad, multiplex, options bus, telephone, or siren wiring.

3.0Control Terminal Wiring

			TYPICAL BURGLAR AND FIRE WIRING
Zone		Loop +	Zone		Loop +	Zone		Loop +	Aux. Power (—)
Input			Input			Input		or PO2	(terminal 5 or 7)
	Z–	L+		Z–	L+		Z–	L+		–

WARNING

CAUTION

Before servicing, remove all power including the transformer, battery and phone line. A complete functional test is required after any programming.

Incorrect connections may result in damage to the unit.

System is Power Limited except for battery terminals. All wiring entering this enclosure must be power limited.

in +	+	out
Power		–
Alarm
NO
NC
in +	+ out
Power

Typical burglar	Typical 2-wire	Alarm –
alarm loop wiring	smoke detector
	wiring

		A/C Power Indication LED
1		EARTH GROUND: Must be connected to
		a good earth ground such as a cold water
2		pipe and also connected to the cabinet cover,
		using the supplied wire jumper.
3	A	A/C INPUT: Use U. L. listed, 18 VAC 50
		VA, class 2 transformer. Model TR-1850
4	C	requires 50/60 Hz. unswitched dedicated
		outlet - do not share.
5	–	ALARM OUTPUT:
		Provides 12 VDC, special application, up to
6	A	1.75 A for powering bells, siren drivers, etc.
		Function programmed in address 2734.
7	–	AUXILIARY POWER:
		Provides 12 VDC, special application, up to
8	+	1.0 A for powering detectors.
R	O	OPTION BUS:
B	P
	T	Used for options such as the DS7416i
G	I	Communications Module, the DS7420i Dual
	O	Phone Line Module, etc.
Y	N	Also for keypads #11 - #15.
		For Commercial Fire Mode: Option Bus wiring
		should be in conduit if run ouside the
		enclosure.

KEYPAD BUS*:				PHONE LINE:
Up to 15 keypads**
may be used. Can be
“home-run” or
“daisy-chained.”				T	TH	RH	R
R	B	G	Y	G	B	S	R
9	10	1	12	13	14	15	16

(for a list of
compatible 2-wire
			End-of-Line
smoke detectors,			Supervision Relay
			(e.g. Detection Systems’
see Technical Service
			EOL200)
Note P/N 27685)		Typical 4-wire smoke
			detector wiring.
			For example:
		Detection Systems’
	DS250 in an MB4W base.

An appropriate two pole disconnect device must be installed

by qualified service personnel, as part of the building installation.

CAUTION

Danger of explosion if battery is incorrectly replaced.

	Replace with the same or equivalent type
CAUTION	recommended by the manufacturer.
	Dispose of used batteries according to the
	manufacturer's instructions.

PROGRAMMABLE OUTPUTS:

PO1 shorts to aux. power negative when activated, PO1 can sink up to 1.0 A. PO1 function programmed in address 2735.

PO2 supplies 12 V and up to 500 mA when activated.

PO2 function programmed in address 2736.

ZONES 1-8:Zones 1-8 are intended for connection of Normally Open or Normally Closed alarm contacts. They may also be used for compatible 2-wire smoke detectors. These zones require a 2.21kΩ resistor (P/N 25899) at the end of the loop. Power is momentarily removed from L+ after a [PIN] + [System Reset] or during a fire verification.

Zone 1-8 assignments are programmed in address 0031-0038.

PO1 PO2		1–	L+	2–	3–	L+	4–	5–	L+	6–	7–	L+	8–
17	18	19	20	21	22	23	24	25	26	27	28	29	30

Keypad

(#1 - #10)

Keypad

(#1 - #10)

* = Maximum wire length each: 1000 ft. (305 m).

Maximum wire length total in system: 6000 ft. (1830 m) when using #22 AWG (0.8 mm) or #18 AWG (1.0 mm) cable.

**= Keypads #1 - #10 connect to the Keypad Bus and keypads #11 - #15 connect to the Option Bus.

NOTE

Page 10 P/N: F01U035325-01 Copyright © 2007 Bosch Security Systems, Inc. DS7400Xi (4+) Reference Guide