Epson Powerlite 7850p Multimedia Projector Users Guide

							Presenting Through a Wireless Network71
2. To select Config, press the Enter button on the remote control.
You see the following screen:
Make sure 
Easy connect mode is selected, as shown above. 
If not, use the  button on the remote control to highlight the 
checkbox next to 
Easy connect mode, then press Enter 
to select it. 
3. Use the  button to highlight 
Advanced (next to Easy 
connect mode
), then press Enter to select it. 
You see this screen: 
Easy connect 
mode 
						

							72Presenting Through a Wireless Network4. Make sure the projector has a unique name, so you can identify it 
when connecting to it from your computer. 
If you need to rename it, highlight the 
Clear button next to 
Projector name, then press Enter on the remote control to clear 
the text box. Then highlight the text box and press 
Enter. The 
outline of the text box turns green to indicate you are in input 
mode. Tilt the   button up to select individual letters in 
alphabetical order, or down to select letters in reverse order; then 
tilt the   button to the right to move to the next character 
position. When done typing the new name, press 
Enter.
5. To enable your computer to find the projector on the network, 
select the appropriate 
Ad hoc mode settings:
■Select ESSID ad hoc if your network card supports an SSID 
or ESSID identifier (see page 75). Then highlight the 
ESSID 
text box, press 
Enter, and enter a name (for example, “CONF 
ROOM”). When you’re done, press 
Enter. Note that the 
ESSID is case-sensitive (if you enter the name in uppercase on 
the projector, you must type it the same way on the computer 
connecting to the projector). 
■Select Channel ad hoc if your network card supports using 
channels instead of ESSID names to identify devices on the 
network. Then select a channel number in the 
Channel text 
box and press 
Enter. (Channel ad hoc mode is not supported 
for Macintosh.)
6. If you want to create a password for remote access to the 
projector, highlight the 
Password for WEB control checkbox, 
press 
Enter, and enter a password of up to 8 alphanumeric 
characters. When you’re done, press 
Enter.
7. If you want to set up a security keyword so that only people who 
are in the same room as the projector can access it, turn 
Projector 
keyword
 on. Then when you want to connect to the projector, it 
displays a randomized four-digit number or “keyword” on the 
screen. When prompted by NS Connection, you can enter the 
keyword on your computer to connect (see page 92). 
note
If you want to enter a blank 
space, use the space character 
that comes before the capital 
letter A.
If you want to enter 
numbers, press the 
Num 
button on the remote 
control. The button lights up 
to indicate that the numeric 
keypad mode is active. Press 
the 
Num button again to 
exit numeric keypad mode.
note
The projector keyword 
changes each time you turn 
the projector off and then on 
again, or remove and 
reinsert the 802.11b card. 
Check the keyword on the 
EasyMP Network screen 
whenever you start EasyMP, 
and enter that keyword on 
your computer. You can’t 
connect using a previous 
keyword. 
						

							Presenting Through a Wireless Network73
8. When done making these settings, highlight the OK button at the 
top of the screen (you can either press the 
ESC button on the 
remote control or use the   button to highlight it), then press 
Enter. Highlight the OK button again and press Enter to return 
to the main EasyMP Network Screen. 
Now you’re ready to set up your computer for wireless projecting. Go 
to “Configuring the Network Settings for Windows” below, or 
“Setting Up Your Macintosh for Ad Hoc Mode” on page 75.
Configuring the Network Settings for Windows
Before connecting to the projector, you need to make sure the settings 
for your laptop’s or PC’s network card match the settings you entered 
for the projector. 
1. Access your wireless network Properties window. For example, in 
Windows XP you would click 
Start > Control Panel > Network 
and Internet Connections
. Then click the Network 
Connections
 icon. 
You see a screen similar to this:
2. Right-click the 
Wireless Network Connection icon and select 
Properties. 
note
On some Windows systems, 
you can right-click 
My Network Places or 
Network Neighborhood 
on the desktop and select 
Properties.
Right-click and select Properties 
						

							74Presenting Through a Wireless NetworkYou see a screen similar to this:
3. Click the 
Configure button.
4. Click the 
Advanced tab. You see a screen similar to this:
Click here 
						

							Presenting Through a Wireless Network75
5. Check your wireless card or adapter’s device settings. (Depending 
on the type of card or adapter you’re using, some of the settings 
may be different than those listed here.)
■Set the network type to 802.11 Ad Hoc.
■Set the SSID to match the name you assigned to the 
projector’s ESSID—for example, 
CONF ROOM. (If your 
network card uses channel mode instead, set the correct 
channel, 1 to 11, so it matches that of the projector.)
■Make sure encryption is Disabled. 
6. Click the 
General tab and make sure that your wireless card or 
adapter is enabled. 
7. When done making the settings, click 
OK to close the wireless 
card or adapter’s -properties dialog box. 
Now you’re ready to connect to the projector. See “Projecting 
Wirelessly” on page 89. 
Setting Up Your Macintosh for Ad Hoc Mode
Your AirPort software is automatically configured to allow your 
Macintosh to detect both computer-to-computer (Ad Hoc) and 
Access Point networks. Typically, you only need to select your 
projector’s ESSID from the AirPort status menu on the Macintosh 
menu bar.
If you’re having problems detecting the projector, follow these steps:
1. From the Apple pull-down menu, select 
System Preferences. 
Then double-click the 
Network icon. You see the Network 
settings window. 
						

							76Presenting Through a Wireless Network2. Make sure Location is set to 
Automatic.
3. Select 
Network Port Configurations in the Show pull-down 
menu.
4. Under Port Configurations, select 
AirPort.
5. Click 
Apply Now. Then close the window.
6. Click the AirPort icon on the menu bar at the top of the 
Macintosh desktop. You see the AirPort status menu:
7. Check to make sure AirPort is turned on.
8. Select your projector’s ESSID.
note:
If you don’t need the other 
network ports, disable them 
by deselecting their check 
boxes. If more than one 
network port is enabled, the 
projector software warns you 
to turn off AirPort when you 
first connect the projector. 
Disregard this message.
Select 
Automatic 
Select Network Port 
Configurations 
then select AirPort 
						

							Presenting Through a Wireless Network77
Using Access Point Mode 
In order to use Access Point (infrastructure) mode, first adjust your 
projector and wireless access point or AirPort base station settings as 
described in this section. 
Configuring the Projector
1. Switch the projector to EasyMP and insert the EPSON 802.11b 
card (see page 68). You see this screen:
2. To select 
Config, press the Enter button on the remote control.
You see the following screen:
Config 
button
Access point 
mode 
						

							78Presenting Through a Wireless NetworkMake sure 
Access point mode is selected, as shown. If not, 
use the   button on the remote control to highlight the 
checkbox next to 
Access point mode, then press Enter 
to select it. 
3. Use the   button to highlight 
Advanced (next to Access point 
mode
), then press Enter to select it. 
You see this screen: 
4. Make sure the projector has a unique name, so you can identify it 
when connecting to it from your computer. 
If you need to rename it, highlight the 
Clear button next to 
Projector name, then press Enter on the remote control to clear 
the text box. Then highlight the text box and press 
Enter. The 
cursor turns green to indicate you are in input mode. Tilt the   
button up to select individual letters in alphabetical order, or 
down to select letters in reverse order; then tilt the   button to 
the right to move to the next character position. When done 
typing the new name, press 
Enter.
note
If you want to enter a blank 
space, use the space character 
that comes before the capital 
letter A.
If you want to enter 
numbers, press the 
Num 
button on the remote 
control. The button lights up 
to indicate that the numeric 
keypad mode is active. Press 
the 
Num button again to 
exit numeric keypad mode. 
						

							Presenting Through a Wireless Network79
5. To enable your computer to find the projector on the network, 
you need to enter the ESSID, which is the SSID identifier of your 
access point or the name of your AirPort network. (The name of 
your AirPort network may be different than that of your AirPort 
base station; select your base station in the AirPort Admin utility 
and click 
Configure to check the name of your network.) 
Highlight 
ESSID on the projector screen and press Enter. Then 
enter your access point’s SSID identifier or your AirPort network 
name in the text box. Note that the ESSID is case-sensitive. 
6. If you want to create a password for remote access to the 
projector, type it in the box next to 
Password for WEB control 
and press 
Enter.
7. If you want to set up a security keyword so that only people who 
are in the same room as the projector can access it, turn 
Projector 
keyword
 on. Then when you want to connect to the projector, it 
displays a randomized four-digit number or “keyword” on the 
screen. When prompted by NSConnection, you can enter the 
keyword on your computer to connect (see page 92). 
8. If your access point assigns IP addresses automatically, turn on 
DHCP. Otherwise, turn off DHCP and enter the following 
information manually: 
■IP address: Type in the IP address you want to assign to the 
projector. It must be formatted like other addresses on the 
network; usually the first three segments (XXX.XXX.XXX) 
match the first three segments of the IP address for your 
access point or AirPort base station.
■Subnet mask: For example: 255.255.255.000, but this 
depends on how your network is set up.
■Gateway address: Enter the IP address that was assigned to 
the access point or AirPort base station when it was set up. 
9. If you want to monitor the projector using HP OpenView,
™ 
you’ll need to enter at least one trap IP address. See Chapter 7 for 
details on monitoring the projector. 
note
The projector keyword 
changes each time you turn 
the projector off and then on 
again, or remove and 
reinsert the 802.11b card. 
Check the keyword on the 
EasyMP Network screen 
whenever you start EasyMP, 
and enter that keyword on 
your computer. You can’t 
connect using a previous 
keyword.
note
For specific details about 
your network, please consult 
your network administrator.
If you don’t know your 
gateway or access point 
address, see page 86. If 
you’re using AirPort, start 
the AirPort Admin utility, 
select your base station and 
click 
Configure. Then click 
the 
Network tab to see your 
base station’s IP address. 
						

							80Presenting Through a Wireless Network10. If you want to set up WEP encryption on the projector for 
additional security of wireless transmissions, click the 
WEP 
button on the left side of the screen and continue with “Adding 
WEP Encryption” on page 80. Otherwise, continue with step 11.
11. When done making your settings, highlight the 
OK button at the 
top of the screen (you can either use the   button on the remote 
control or press 
ESC to highlight it), then press Enter. Highlight 
the 
OK button again and press Enter to return to the main 
EasyMP Network Screen. 
Now you’re ready to set up your computer for wireless projecting. 
Continue with “Configuring the Network Settings for Windows” on 
page 81, or go to “Setting Up Your Macintosh for Access Point 
Mode” on page 87.
Adding WEP Encryption
When you click the WEP button on the Access point mode advanced 
settings screen, you see this screen:
1. If you want to enable WEP encryption, highlight either 
128Bit 
for 128 bit WEP encryption, or 
40Bit for 40 bit WEP encryption. 
Then press 
Enter.
2. For Format, highlight 
HEX to enable hexadecimal input, then 
press 
Enter.
note
For instructions on how to 
access the Access point mode 
advanced settings screen, see 
page 77.