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

104 en | System wiring diagrams
Cable capacitance
pF/ft
< 17
18
19
20
21
22
23
24
25
26
Table 18.9: 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.
18.6

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
2018.07 | 10 | F.01U.303.996
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 CLASS 2
R12
16.5 VAC 40 VA 60 Hz
2 TRANSFORMER
R22
3 + AUX POWER
4 BATTERY (
RV2
5 BATTERY ( + )
OUTPUT
6
A (1)
OUTPUT
7
B (2)
OUTPUT
8
C (3)
9 COMMON
10
10 EARTH GROUND
WARNING!
Multi-Battery
installation requires
6, 8
Model D122 or D122L
Dual Battery Harness.
Improper installation
can be a fire hazard .
USB POWER
STATUS
USB
Callout ᅳ Description
6 ᅳ Supervised smoke detector to B LOOP negative
7 ᅳ Supervised smoke detector to A LOOP negative
Installation Manual
Overall cable length
ft
5185
5000
4828
4700
4516
4400
4242
4100
4000
3800
All exte
Require
POWER SUPPL
- The Power S
)
refer to the B
Battery: Replace every 3 to
5 years with one or two
Model D126 or D1218 12V
Lead Acid Batteries.
The system is intended
panel has been approv
RevPol.
WARNING!
To prevent risk of shock,
disconnect AC power and
communication lines before
servicing.
ON-BOARD POINTS
Owner I
be removed by
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 Point 5 Point 6
Devices powered by
any output must be
supervised. 12 15 16
11 13 14
B
A
L
S
I
E
N
K
T
POINT 1 COM POINT 2 POINT 3 COM POINT 4
ETHERNET
Bosch Security Systems, Inc.
Control Panels
m
1580
1524
1472
1433
1376
1341
1293
1250
1219
1158
Point 7 Point 8
19 20 21 22
17 18
POINT 5 COM POINT 6 POINT 7 COM POINT 8