Table of Contents
Advertisement
11
Operation and Description for each part of the Circuit
11-5-1
Communication
Circuit for serial 1, serial 2
The KS82C452 (u34), RS-232C CONTROLLER, is used to communicate serial 1, serial 2. And also used
Max232(U24-U26) for driver. Show following Block diagram
em
9»
i
Add. BUS
D-sub9
Serial
1 comm.
U1
U34
CPU
80188
Data BUS
820452
Serial
2 comm.
(Comm.
D-sub 9
CTRL Signal
<>
(RS-232C Block diagram)
11-6 IRC Communication Circuit
controller
Idle-pattem
CPy
U28
cereale
82588
loaic
:
IRC+
Modular
U1
haa
tranceiver
Rae
goiss |
U31,U32
=
75176
Volt. sqelch
&
envelope idle
IRC Block Diagram
SNe
a
11-4
Samsung
SER-6500/ SER-6500F / SER-6540 / SER-6540F
Advertisement
Table of Contents
