Standby Battery Calculation; Table 50: Standby Battery Calculation - Bosch DS7200V2-EXP Installation Manual

DS7200V2-EXP | Installation Guide | 4. Reference Materials
Below is a text keypad display of an event log. The first line describes the event and the second line
alternates between event specific information (such as area # and zone #, if applicable) and the time
and date of the event.
Event
Event Specific Information
4.8

Standby Battery Calculation

Use the following formula to calculate standby battery capacity for 24 h of standby power:
(Total B __ x 24 h) + (Total C __ x 0.067 h) + 10% reserve = Total battery Ah required
If the Column C total exceeds 1.2 A, then an external power supply is required.
Table 50: Standby Battery Calculation
Model Quantity
Number Used
DS7240V2/
DS7220V2
Keypads
DS7445i/
DS7445V2
DS7447E/D
S7447V2
Accessories
DX2010
DX3010
DX3020
DX4010i/
DX4010
DX4020
RF3227E
Sounders Connected to PO 2
D118 8
Speaker
Ratings of other devices in system that are not shown above
1
Current shown in mA (1 A = 1000 mA)
2
84 mA max, 80 mA nominal 10 Base-T ; 110 mA max, 100 mA nominal 100 Base-T
Bosch Security Systems, Inc. | 04/12 | F01U253045-02
Sensor Mon Rst
l
A1 S3 PL
Destinations 1,2
A
AC Power On
Normal Current
Each Total
Unit 1
85 x 1 =
35 x Qty =
100 x Qty =
35 x Qty =
10 x Qty =
10 x Qty =
25 x Qty =
84/110 x 1 = 84/110
2
30 x Qty =
0 x Qty =
x Qty =
x Qty =
x Qty =
x Qty =
x Qty =
x Qty =
Total A =
Event
Sensor Mon
08:29 09/09/03
Time of event
B
AC Power Off
Minimum Current
Each
Unit
85 85 x 1
35 x Qty
100 x Qty
35 x Qty
10 x Qty
10 x Qty
25 x Qty
84/110 x 1
2 2
30 x Qty
0 x Qty
x Qty
x Qty
x Qty
x Qty
x Qty
x Qty
Total B
Rst
l
Date of event
In Alarm
Maximum Current
Total Each
Unit
= 85 120 x 1
= 115 x Qty
= 100 x Qty
= 35 x Qty
= 10 x Qty
= 10 x Qty
= 25 x Qty
= 84/110 x 1
2
= 30 x Qty
= 330 x Qty
= x Qty
= x Qty
= x Qty
= x Qty
= x Qty
= x Qty
= Total C
EN | 128
C
Total
= 120
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=