9
III - Electrical installation
Advice : to prevent the cable from moving, it is recommended to use cable ties near
each cable entry inside the clock.
On some clock models, it is necessary to remove one display module in order to freely
access the terminal blocks. When putting it back in place, check the its orientation.
All the cables must be held flat against the casing: use a cable tie at the bottom
of the spacers or another system.
•
The cables to be connected on the terminal strips on the lower part of the board (temperature
sensor, humidity sensor, radio, GPS and DHF antenna, etc.) must always be placed on the
lower part of the board (see G).
•
The connection cables for the option boards (ASCII / Afnor-minute / NTP) and for master-slave
communication must be placed on the upper part of the board (see H).
G
H
CPU card
Mains supply
Switching power supply
D
A
B
C
F
E
Repeater
connection
Programming keys
Ground
SEL
+
G
FI/DCF antenna (no polarity)
DHF receiver
Temperature sensor
GPS antenna
A
B
F
C
0V (br
own)
D
t (whit
e)
12V (y
ello
w)
0V (g
reen)
RT+ (whit
e)
RT
- (br
own)
RT
- (br
own)
12V (y
ello
w)
0V (g
reen)
Init (pink) RT+ (whit
e)
Humidity sensor
G
3V3(whit
e)
0V (br
own)
D (g
reen)
Clk (y
ello
w)