Tamper And Main Power Fail; Led Indicators; Reset Button; End-Of-Line Setting - Bosch Access Easy Controller 2.1 Hardware Installation Manual

Access Easy Controller 2.1
6.1.8

Tamper and Main Power Fail

Reference: Terminal Strip T12
Terminal strip T12 comprises of Tamper alarm and Main Power Fail alarm inputs. The Tamper
terminals are connected to a micro-switch that is used to monitor the enclosure's cover
against unauthorized tampering. Any opening of the enclosure cover will trigger the Common
Alarm output and sounds off the CPU buzzer. A Controller Tamper alarm message is sent to
the Transactions page of the AEC2.1 user software.
The Main Power Fail alarm will be triggered when the input AC power is cut off and the
backup battery takes over. The terminals will be shorted together.
PWR
FAIL
+ -
Figure 6.6: Tamper and Main Power Fail
6.1.9

LED Indicators

Reference: LED 1 to LED 8
LEDs 1 to 8 light whenever the associated relay is activated.
Reference: LED9
This LED indicates that the processor on the 4-Reader board is running.
Reference: LED 10 and LED 11
These LEDs should blink in normal operation. This indicates normal communication between
the 4-Reader board and the CPU board.
Reference: LED 12
This LED will blink once each time card is presented to a reader.
6.1.10

Reset Button

Reference: SW2
SW2 is a reset button to reset the processor on the interface board.
6.1.11

End-of-Line Setting

Reference: JP1
AEC2.1 uses RS485 multi-drop communication channels between the CPU and interface
boards. It is necessary to include the end-of-line jumper settings on the last interface board in
configuration to have a stable communication channel.
Figure 6.7: Jumper Setting
Robert Bosch (SEA) Pte Ltd
TAMPER
+ -
T12
Hardware Installation Manual
4-Reader Board | en 29
2018.11 | 1.0.6 | F.01U.122.796