Panasonic KX-TEA308CE

23.3. DOORPHONE/DOOROPENER CARD BLOCK DIAGRAM
C
O
N
N
E
C
T
O
R
nCS,nRD,nWR
nRESET
A[2:1]
Serge
EMC
Door Detect
Power
Crt
+15V
#2
P-I/O
D[7:0]
VAG (6V)
Door Opene
Relay #A
+15V
CN3
CN1
#1
DOOR1
TONE
DOOR_SW1
DOPN1
CN2
DG
AG
Hook Detect
Door Opene
Relay #B
DOOR2
TONE_SW1
BUSY1
DCN1
DHK1
DOPN2
+3.3V
KX-TE82460X BLOCK DIAGRAM
IC2
IC1
IC5
IC11
IC6
IC7
IC8
23.4. EXPLANATION OF BLOCK DIAGRAM/CIRCUIT OPERATIONS
23.4.1. OPTION CARD (KX-TE82460X)
This doorphone/door opener card is composed of the control interface with KX-TEA308 and two doorphone interfaces and two
dooropener interfaces section.
1) Doorphone section
This card has two doorphone interfaces, this system has only two door phone intercom paths.
This doorphone intercom path is composed of the send amplifier and receive amplifier circuits.
The interfaces have the doorphone connect detection circuit and the doorphone hook detection circuit.
2)
This doorphone/dooropener card has four dooropener interfaces. These interfaces are used for the dooropener SW (DC 30/AC
250 5A).
96
KX-TEA308CE