30
DCF an
tenna wir
ing
Timer panel
Master panel
Timer panel wir
ing
HOME alpha score panel
To master panel mains
terminal strip
868 MHz modem
+V
GND
RT-
RT+
+V
GND
RT-
RT+
GPS
MDM
T °C
ON
2
1
8
7
ON
2
1
5 6
4
ON
2
1
3
RX
TX
GND
RS232
L
N
T
+
+
-
-
1
4
2 3
Po
w
er supply fr
om HOME
A
lpha sc
or
e panel
M
ains p
o
w
er supply
C
ommand fr
om HOME
A
lpha sc
or
e panel r
eadout
To Alpha
module supply
+V
GND
RT-
RT+
MDM
T °C
Dips
GND
/
Gr
een
RT
-
/
Br
own
RT+
/
Whi
te
Flat cable
Power supply
Yellow
Green
Brown
White
Brown
White
To Alpha module
Temp
er
atur
e sensor wir
ing
Temperature probe
A
B
D
E
C
Wiring of a GPS antenna is not appropriate for the BT 2045 Alpha.
