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5. Connections
RS232/422 input port
Pin
Description
4
DTR : Data Terminal Ready [RS232]
TXD+ : Transmitted Data [RS422]
5
GND : Ground
6
DSR : Data Set Ready [RS232]
RXD+ : Received Data [RS422]
7
— (not connected) —
8
CTS : Clear To Send
9
RI : Ring Indicator
A
1
2
3
6
7
Image 5-10
A
Pin numbering male DB–9 connector.
B
Pin numbering female DB-9 connector.
RS232
An Electronic Industries Association (EIA) serial digital interface standard specifying the characteristics of the com-
munication path between two devices using either DB-9 or DB-25 connectors. This standard is used for relatively
short-range communications and does not specify balanced control lines. RS-232 is a serial control standard with a
set number of conductors, data rate, word length and type of connector to be used. The standard specifies component
connection standards with regard to computer interface. It is also called RS-232-C, which is the third version of the
RS-232 standard, and is functionally identical to the CCITT V.24 standard. Logical '0' is > + 3V, Logical '1' is < - 3V.
The range between -3V and +3V is the transition zone.
RS422
An EIA serial digital interface standard that specifies the electrical characteristics of balanced (differential) voltage,
digital interface circuits. This standard is usable over longer distances than RS-232. This signal governs the asyn-
chronous transmission of computer data at speeds of up to 920,000 bits per second. It is also used as the serial port
standard for Macintosh computers. When the difference between the 2 lines is < - 0.2V that equals with a logical '0'.
When the difference is > +0.2V that equals to a logical '1'..
Ethernet network communication
The CLM projector can be connected to a LAN (local area network) using the Ethernet port (E) on the communication interface. Once
connected to the LAN, users are capable of accessing the projector from any location, inside or outside (if allowed) their company
network using the CLM control software: Projector Toolset. This toolset locates the projector on the network in case there is a DHCP
server or the user can insert the correct IP-address of the projector to access the projector. Once accessed, it is possible to check
and manipulate all the projector settings. Remote diagnostics, control and monitoring of the projector can then become a daily and
very simple operation. The network connectivity permits to detect potential errors and consequently improve the time to servicing.
Both Ethernet port (E) is equipped with a yellow and green a LED. The yellow LED lights up in case the port is connected with a
100Mbit network. The green LED blinks in case there is network activity.
The connector used for the Ethernet ports (E) are of rugged Neutrik EtherCon RJ45 type, which is compatible
with standard RJ45 cable connector. Straight (most common) as well as cross linked network cables can be
used.
40
4
5
8
9
RS232/422 output port
Pin
Description
4
DTR : Data Terminal Ready [RS232]
TXD+ : Transmitted Data [RS422]
5
GND : Ground
6
DSR : Data Set Ready [RS232]
RXD+ : Received Data [RS422]
7
— (not connected) —
8
— (not connected) —
9
— (not connected) —
B
5
4
3
2
1
9
8
7
6
R59770057 CLM HD8 16/07/2007
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