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Siemens Building Technologies
Cerberus Division
E1481b
06.2000
DB2
DB1
UA RT2
(Full modem)
Power
(13.8 V)
UART3
UART4
LON
UART1
(modem without RI
and DCD)
I/O expansion
board
CPU board
TX
GND
GND
RX
1
2
3
4
TX
GND
GND
RX
1
2
3
4
CN3
CN4
CN2
CN5
CN6
CN1
GND
RX
TX
GND
RX
TX
UART 5
UART 6
36
35
32
31
Fig. 20 The connection board
CPU board
CD95800
I/O expansion
board
CD95802
Summary of Contents for Cerberus GW-21
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