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Expand Serial Command Functional Specification
1. Overview
1.1. This Functional Specification defines communication functions such as Multi Card Imager for
LV-7225/7220/5220.
1.2. The Projector Firmware Ver.1.x ready.
1.3. Commands are to communicate to such as Multi Card Imager, but most commands control a
remote Projector with PC installed RS232C. That's why commands are defined as expand serial
commands.
2. Serial Interface Specifications
2.1. Communication Specification
Item
Synchro System
Transmission Speed
Data Length
Parity
Stop Bit
Flow Control
1). Transfer rate: initial setting value is 19200.
2). Transfer rate can be changed by service mode.
2.2. Connection
Dedicated serial cable that comes with the Projector must be used for a connection to a computer and
a Projector.
Asynchronous
9600 / 19200
8 bit
N/A
1
N/A
PC
COM 1
CD
1
RXD
2
TXD
3
DTR
4
SG
5
DSR
6
RTS
7
CTS
8
RING
9
(Dsub-9 pin)
Specification
Projector
SERVICE Port
1
2
3
4
5
6
7
8
(Mini DIN-8 pin)
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