Bosch Appliances Smoke Alarm D7024 User Manual
D7024
Control Terminal Connections
D7024 Operation and Installation Guide
41740F
Page 22
© 2005 Bosch Security Systems
4.0 Control Terminal Connections
Phone Line 2
(Supervised)
Phone Line 1
(Supervised)
WARNING
Before servicing this equipment, remove all power
including the transformer, battery and phone lines.
including the transformer, battery and phone lines.
CAUTION
Incorrect connections may result in damage
to the unit and personal injury.
to the unit and personal injury.
IMPORTANT
Shared cable is not recommended for option bus,
telephone or NAC wiring.
telephone or NAC wiring.
EOL
(supervised)
EOL
(supervised)
Backup Batteries
Battery # 1
Battery # 2
Red
Black
Battery # 1
Battery # 2
(
+
)
(
-
)
(
+
)
Red
Black
(
-
)
Refer to
Technogram
P/N:34445
Relay 2
Relay 1
Contacts
rated at
5.0 A, 24 V
Smoke Power: 24 V, 1.0 A max. (filtered)
Refer to Technogram P/N: 34445
for compatible devices.
Aux. Power: 24 V, 1.0 A max.
(unfiltered)
Earth Ground
unsupervised
unsupervised
For connection to
listed power limited
Class 2 or Class 3
sources only.
listed power limited
Class 2 or Class 3
sources only.
supervised
switched
unsupervised
unswitched
Input Points 1-4:
(supervised) Points are intended for
connection of Normally Open/
Normally Closed alarm contacts.
They may also be used for compatible
two-wire smoke detectors.
All EOL resistors are 2.21 k
Ω
,
P/N: 25899 Radionics
by Detection Systems,UL listed.
Initiating devices are Class B, Style B.
Two-Wire Compatibility Identifier “A”.
RA
BA
GA
YA
RB
BB
GB
YB
Option Bus A
Option Bus B
Option Power (A + B) 500mA, max
Supervised, Style 4
+12 V Com
1
2
3
4
5
6
7
8
9
#
Cmd
0
Prog
*
Clear
Reset
Drill
D isable
Test
History
Alarm
Trouble
Silenced
Power
Silence
Option bus devices may be connected
to either Bus A or Bus B.
Typical Fire Wiring
EOL
Resistor
Z-
LP+
Input
Loop
Power
+
Smoke
Detector
2
2
Typical 2-wire
smoke detector
wiring (supervised)
(for a list of compatible 2-wire
smoke detectors, see Radionics
Technogram P/N:34445)
Typical 4-wire smoke
detector wiring.
For example:
a Radionics D285 in a
D292 base.
EOL
Resistor
EOL Relay
Smoke
Detector
Z-
LP+
Input
Ref.
Loop
Power
+
SMK
-
SMK
+
Smoke
Power
Ref.
Smoke
Power
+
NAC 1+ +24 V while in alarm; ground while in standby.
NAC 1- Ground while in alarm; supervisory voltage while in standby.
NAC 1- Ground while in alarm; supervisory voltage while in standby.
NOTIFICATION APPLIANCE CIRCUIT:
BAT -
BAT +
Requires two 12 V batteries, in series, for a combined voltage of
24 V. Charge current = 1.1 A, max.
24 V. Charge current = 1.1 A, max.
NAC 2+ +24 V while in alarm; ground while in standby.
NAC 2- Ground while in alarm; supervisory voltage while in standby.
NAC 2- Ground while in alarm; supervisory voltage while in standby.
NOTIFICATION APPLIANCE CIRCUIT:
Do not short terminals - explosion and burn hazard.
BATTERIES:
Use only indicating devices as listed on Technogram P/N: 34950.
IMPORTANT
All option bus devices must be connected to the same bus,
either Bus A or Bus B. Do not connect some devices to Bus A
data terminals (”YA”, “GA”) and some to Bus B data terminals
(”YB”, “GB”). Power (”RA”, “RB”) and ground (”BA”, “BB”)
terminals may be connected interchangeably to either set of terminals.
either Bus A or Bus B. Do not connect some devices to Bus A
data terminals (”YA”, “GA”) and some to Bus B data terminals
(”YB”, “GB”). Power (”RA”, “RB”) and ground (”BA”, “BB”)
terminals may be connected interchangeably to either set of terminals.
White
Red
Brown
NC
AC Power 2
AC Power 2
AC Power 1
NC
(supervised)
IMPORTANT
All wiring except battery terminal and
primary AC power is power-limited.
Primary AC and battery wires must be
separated from other wires by at least
¼ in. (64 mm) and tied to prevent
movement.
primary AC power is power-limited.
Primary AC and battery wires must be
separated from other wires by at least
¼ in. (64 mm) and tied to prevent
movement.
R2
HR2
HT2
T2
R1
RH1
TH1
T1
WARNING
+12 V Com
Data
Data
Figure 5: D7024 Control Terminal Connections