User Manual

49Communication Interface
IND100084-7
Block Diagram
JHSCOM-A1 or JHSCOM-C1
ADAPTER PCB
VIDEO CONTROLLER
MICRO
CONTROLLER
DIGITAL
POTMETER
CIRCUIT
COM 1
COM 2
RS232 interface
C
P
U
POTMETER PCB
Potentio
meter
RS-232 Communication VCC Backlight control signal
RS-232 interface
for remote control of
menu settings.
+5V power out
Short
to gnd
Relay control
signal.
Relay
0-5 V
Subject: Block diagram JHSCOM-A1 & -C1 Title: VSD100105-1 Drawn by: Lars Melkevik Description: Block diagram showing the electrical connections for the JHSCOM-A1 and JHSCOM-C1 internally in the display
Rev. 1
Date: 16 Sep, 2002
Checked: Date: 18 Oct, 2002
C
P
U
Baclight Inverter
to display
CN8 CN8
REMOTE
CONTROL
INTERFACE
Straight/ Reverse
selector
Address
selector
RS232/
RS485
selector
Full/Half
duplex
selector