Dual K Line Interface Schematic

o

A^

O

IC2

08

^IC1P100nF

n

C7

'OuF

VOUT VIN 78L05SMD GMD

C5

wnGDnF

i₌°Ł

-"TToupT

D1

\+

1N4148

-X

VBAT

1 X X X X

N1

N2

03 1uF

04 1uF

GND

GND GND

GND GND GND

N7

J2_

N3

N5

1

GND

IC1

GND ±L

	C1+
V-	Cl-
V-	C2+
	C2-
T10UT	T1IN
T20UT	T2IN
R1IN	R1CJT
R2IN	R2CJT

MAX232ECWE

0	C1J —
	1uF
4
5	C2J 1uf“]
11
10
12
9

o

> a

GND

o

RXK    L    |—

RXL    VBAT

VDO    K

TX    GND

SI9243 _L

GND

RXK    L

RXL    VBAT

VDD    K

TX    GND

SI9243

a

GND

o

> A

«D^s

o:¹

2

GND

D2

DUO-LED3MM (red/green)

(Rl &R2 mind 0_:25W II)

cny

-X