Bosch Access Easy Controller 2.1 User Manual

22 en | The CPU Board Access Easy Controller 2.1
2018.11 | 1.0.6 | F.01U.122.796 Hardware Installation Manual Robert Bosch (SEA) Pte Ltd
RS232 Serial Port
Pin Signal Pin Signal
9 RIB 10 -
5 VDC & 12 VDC Power Input
The CPU board can be powered up by the 100~240 VAC input PSU.
Refer to Section7Power Supply Unit for further information before connecting any power
source to the CPU board.
Power Connector
Pin Signal
1 +5V
2 GND
3 GND
4 +12Vcc
5.1.1 Other Components
Lithium Battery Holder
This is the location where a 3V Lithium battery is situated. The Lithium battery provides
continuous power supply to the Real Time Clock circuitry in case of a power outage. The
power will only be drawn from this battery under the following conditions: -
– No power is supplied from the PSU, and
– The external 12V rechargeable battery is not charged sufficiently, or is drained for prolong
period of time and unable to provide backup power.
Notice!
It is recommended that this battery be changed every 2 years. Recommended replacements
are the Panasonic Model CR2032 Lithium Battery for Axiom and A-Value CPU boards, or the
Varta Model CR2032 Lithium Battery.
!
Caution!
Batteries should only be replaced by a qualified service technician.

Bosch Access Easy Controller 2.1 Specifications

General

Brand	Bosch
Model	Access Easy Controller 2.1
Category	Controller
Language	English