Bosch 8-Dec - Manual (Page 116)

108 | Accessories for Control Panels and Keypads | Power Supplies and Batteries
NEV 300 LSN power supply
Features
▶ Can be connected to all LSN control panels (centralized
or decentralized)
▶ A maximum of two 12 V/17 Ah batteries can be used
▶ Monitoring of mains and battery voltage
▶ Tamper protection (tamper contact)
▶ 3 freely programmable open collector outputs
▶ Slot for optional voltage converter (to 28 V)
The NEV 300 LSN is an additional power supply for LSN
control panels.
System Overview
This additional power supply for LSN control panels is
connected to the LSN local security network in an LSN loop
or in max. 2 LSN stubs.
1 LSN control panel
2 LSN element
3 Connection in an LSN loop or in up to 2 LSN stubs
Functions
Control assembly:
• 230 V mains supply
•
Power failure protection, transformer connection,
rectifier
• Battery charge control and monitoring
•
Battery check
•
Voltage surge protection
• Fault recognition and display
Connector board
•
LSN lines with power supply connection
•
Battery connection
• External user connection
•
Slot for 28 V voltage converter
•
Fuses for voltage outputs
• 3 open collector outputs (C points), 2 relay modules can
be plugged in if needed
The power supply is a separate LSN element and is
programmed from the control panel with the corresponding
program. Message types such as tampering with tamper
contacts and power supply or battery faults are transmitted
to the control panel via LSN.
The battery charge voltage is set at the factory. The
controller and the internal temperature sensor ensure
temperature-adjusted battery charging. A remote PTK
tracker can be used if needed. Should readjustment be
necessary, this is carried out via a potentiometer on the
control assembly.
The battery monitor identifies when voltage falls below
discharge level, interruption and short-circuit of the battery
cable. The test cycle can be set to 1 min. or 15 mins. The
battery load test lasts for 2 seconds and is switched off if
the regulator is inoperative (power failure).
Device display
The display visible from the outside contains the operating
indicator (green LED) that is lit when the battery and/or
230 V is connected, and the power supply failure indicator
(yellow LED) that is lit when a battery and/or mains fault
occurs.
Certifications and Approvals
Region Certification
Europe CE NEV 300 LSN
Germany VdS G 103030, C NEV 300 LSN
Installation/Configuration Notes
•
The energy balance is determined according to
VDE 0833 and created using the "uezpro" planning and
current calculation program. The limits are calculated
automatically. Any external peripheral devices
connected must be included in the calculation.
•
Current consumption at 12 V; 1.2 A per connection
point
Bosch Security Systems B.V. www.boschsecurity.com
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