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Basic Serial Command Functional Specification
Page 3 of 19
1. Overview
1.1. This specification defines Projector control commands for LV-7225/7220/LV-5220.
1.2. The Projector control commands are for controlling Projector through RS232C from a computer.
2. Serial Interface Specification
2.1. Transfer Specification
Item
Specification
Shynchro system
Asynchronous
Transmission Speed
9600 / 19200
Data Length
8 bits
Parity None
Stop Bit
1
Flow Control
None
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.
PC
Projector
COM 1
SERVICE Port
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
CD
SG
RXD
TXD
DTR
DSR
RTS
CTS
RING
(Dsub-9 pin) (Mini DIN-8 pin)