2-Wire Smoke Wiring (D125B) - Bosch B9512G Installation Manual

32 en | System wiring diagrams
Cable capacitance
pF/ft
< 17
18
19
20
21
22
23
24
25
26
Table 7.1: Maximum cable length
Notice!
Use unshielded cable only.
Maximum capacitance of 140nF (140,000 pF) per system. Contact the wire manufacturer for
the capacitance ratings of the wire being used.
7.6

2-wire smoke wiring (D125B)

PTC2
R2
R21
R9
R10
R8
TB1/J1
D125B
1 2 3
SWITCH ZONE ZONE
POWER B A
1
2
Callout ᅳ Description
1 ᅳ Switched auxiliary power from relay C of the control
panel
2 ᅳ Supervised connection to Zone B power from an on-
board point of the control panel
2019-12 | 06 | F.01U.304.001
Overall cable length
ft m
7500 2286
7500 2286
7350 2240
7000 2134
6666 2032
6363 1939
6086 1855
5800 1768
5600 1707
5385 1641
R14
U1
RV1 RV4
RV3
4 5 6 7 8 9 10
PANEL B- A- B+ A+ EARTH
COMMON LOOP LOOP LOOP LOOP GND
4
7, 9
5
3
Cable capacitance
pF/ft
27
28
29
30
31
32
33
34
35
36
BATTERY STATUS
Off: Normal
PTC1
On: Missing
Quick Flash: Low
Slow Flash:
Charging
Low 12.1 VDC
R1
Load Shed 10.2 VDC
Do not connect
to a receptacle
R11
controlled by
a switch.
1
R12
2
R22
3
4
RV2
5
6
7
8
9
10
10
WARNING!
Multi-Battery
installation requires
6, 8
Model D122 or D122L
Dual Battery Harness.
Improper installation
can be a fire hazard .
USB POWER
STATUS
Callout ᅳ Description
6 ᅳ Supervised smoke detector to B LOOP negative
7 ᅳ Supervised smoke detector to A LOOP negative
UL Installation manual
Overall cable length
ft
5185
5000
4828
4700
4516
4400
4242
4100
4000
3800
CLASS 2
16.5 VAC 40 VA 60 Hz
TRANSFORMER
All exte
+ AUX POWER
Require
POWER SUPPL
- The Power S
BATTERY ( )
refer to the B
Battery: Replace every 3 to
BATTERY ( + )
5 years with one or two
Model D126 or D1218 12V
Lead Acid Batteries.
OUTPUT
A (1) The system is intended
panel has been approv
RevPol.
OUTPUT
B (2)
WARNING!
To prevent risk of shock,
OUTPUT
disconnect AC power and
C (3)
communication lines before
servicing.
COMMON
ON-BOARD POINTS
Owner I
be removed by
EARTH GROUND
Voltage Ranges: Open 3.7 - 5.0 VDC,
WARNING!
Incorrect wiring will 1 k End-of-line-Resistors Required (P/N 15093130-004),
damage this
equipment.
Point 1 Point 2 Point 3 Point 4
Devices powered by
any output must be
supervised. 12 15
11 13 14
B
A
L
S
I
E
N
K
T
POINT 1 COM POINT 2 POINT 3 COM POINT 4
USB ETHERNET
Bosch Security Systems B.V.
Control panels
m
1580
1524
1472
1433
1376
1341
1293
1250
1219
1158
Point 5 Point 6 Point 7 Point 8
16 19 20 21 22
17 18
POINT 5 COM POINT 6 POINT 7 COM POINT 8