ADEMCO VISTA-250FBP Guide d'installation Page 51

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Section 3 - Installing the Control
3-29
3. In Worksheet 3, enter devices used on
Auxiliary Power 2. Calculate standby and
alarm currents, then add to get Auxiliary
Power 2 current subtotal.
Worksheet 3: Auxiliary Power 2 Current Load
Total Current
Device
Model #
Device Current X
# of Units
Standby Alarm
Auxiliary Power 2 Subtotal
(pin 5 on keypad port 2)
400mA max.
1.7A max.
4. In Worksheet 4, enter devices connected to the
Bell 1 Output. Calculate alarm currents, then
add to get the Bell 1 Output current subtotal.
Worksheet 4: Bell 1 Output Current Load
Total Current
Device
Model #
Device Current X
# of Units
Standby Alarm
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
Bell 1 Output Subtotal
(terminals 3 & 4 1.7A max.)
5. In Worksheet 5, enter devices connected to the
Bell 2 Output. Calculate alarm currents, then
add to get the Bell 2 Output current subtotal.
Worksheet 5: Bell 2 Output Current Load
Total Current
Device
Model #
Device Current X
# of Units
Standby Alarm
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
Bell 2 Output Subtotal
(terminals 5 & 6 1.7A max.)
6. In Worksheet 6, enter the total calculated subtotals
of all listed outputs from Worksheets 1 through 5, then
add to get the combined current.
Worksheet 6: Total VISTA-128FBP/VISTA-250FBP
Current Load
Total Current
Standby Alarm
Polling Loop Subtotal
Auxiliary Power 1 Subtotal
Auxiliary Power 2 Subtotal
Bell 1 Output Subtotal
Bell 2 Output Subtotal
VISTA-128FBP/VISTA-250FBP
PCB Current (Incl. 2-wire smoke
detector loading on zones 1 & 2)
300mA 470mA
5140DLM Backup Dialer Module
5mA
(inactive)
15mA
(active)
Total Current Load
(1A max. standby; 2.3A max. alarm)
NOTE: The 5140DLM actually draws 55mA when active.
However, since the control panel PCB current includes the
main dialer current, and since the main dialer is inactive when
the 5140DLM is active, the 5140DLM imposes only a 15mA
added load on the current supply.
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