10
/ 30
User Manual
Rev. 2.0 - 17/02/17
SCML1+1SL ( /V1, /V2 , /V3 & /V4 )
ELETTRONICA
4.7.3 Service (
only for factory setting purposes
)
Type: Female DB9
1
NC
2
TX_D
3
RX_D
4
Internally connected with 6
5
GND
6
Internally connected with 4
7
Internally connected with 8
8
Internally connected with 7
9
NC
4.7.4 Coax Relay (
only for SCML1+1SL/V4
)
Type: Female DB9
1
Control voltage (+)
2
Control voltage (-)
3
Relay in position 1 (OFF)
4
Relay in position 2 (ON)
5
GND
6
Switching to position 2 / NO
7
Switching to position 1 / NC
8
Common (when selected)
9
Relay Switching
Pins 1 and 2 are outputs on which the relay control voltage is made available (12V
or 24V DC).
Connected to pins 3 and 4 are the relay limit switches, two contacts which alternately
close towards the ground when the relay is in the normal position (TX1 connected
to antenna, pin 3 closed to ground) or switched (TX2 connected to antenna, pin
4 closed to ground).
Pins 6 and 7 are the commands which cause the coaxial relay to switch from
the normal position (Off) to the switched position (On) and vice versa; the type
of command depends on the coaxial relay used, as well as the connecting cable
between the SCM and the coaxial relay.
One of the possible positions of the control mode selection jumper makes available
on pin 8 the common contact of a switch, of which pin 6 is the normally open (NO)
contact and pin 7 is the normally closed (NC) contact.
Pin 9 is an open contact until switching begins, and is closed to ground when the
relay has reached the new position.
