MFA0X.doc
16-04-08
Page 5 of 6
6.1. Test
Voltages
RX
Green
TX
Yellow
Idle 6
6
Handset up
1
6
Speech 1 6
Door release
1
0
Handset down
6
6
6.2. Operation
TX line
1. TX audio.
2. Detects when the door release button is being pressed.
RX line
1. RX audio.
CALL
1. 14v to call handsets.
GND
1.
Ground to all handsets.
7. Wiring
Basic layout ( one door station )
8. Guarantee
The MFA02/08/20 is guaranteed by the manufacture for a period of six months from the date of
delivery against faulty components and faulty workmanship (ex factory).
MFAPSU
MFA02/08/20
GN TX RX
MFAHS
+
MFAHS
+
MFAHS
+
CALL
CALL
GND
TX
RX
