Bosch Access Easy Controller 2.1 - Page 44

44 en | Access Easy Extension Unit Access Easy Controller 2.1
2018.11 | 1.0.6 | F.01U.122.796 Hardware Installation Manual Robert Bosch (SEA) Pte Ltd
MAIN
PWR
FAI L
+ -
TAM PER
+ -
EARTH SHIELD
B
A
RTS GND
TX
RX
RS232
DC 15V
IN
+ -
RS485
T12
T13 T14
T1
T11
T10
T9
T8
T7
T6
T2
T3
T4
T5
1
2
3
4
JP2
CON1
1
2
1 2 3
SW1
SW2
JP1
MAIN
PWR
FAI L
+ -
TAM PER
+ -
EARTH SHIELD
B
A
RTS GND
TX
RX
RS232
DC 15V
IN
+ -
RS485
T12
T13 T14
T1
T11
T10
T9
T8
T7
T6
T2
T3
T4
T5
1
2
3
4
JP2
CON1
1
2
1 2 3
SW1
SW2
JP1
MAIN
PWR
FAI L
+ -
TAM PER
+ -
EARTH SHIELD
B
A
RTS GND
TX
RX
RS232
DC 15V
IN
+ -
RS485
T12
T13 T14
T1
T11
T10
T9
T8
T7
T6
T2
T3
T4
T5
1
2
3
4
JP2
CON1
1
2
1 2 3
SW1
SW2
JP1
1
2
3
4
RS485
1
2
3
4
1
2
3
4
AEC2.1 Extension Unit # 1
AEC2.1 Main Controller Unit
RS485
To Next
Extension
Unit
Figure9.1: Connection between the AEC2.1 Main Controller Unit and Extension Units via RS485
communication channel.