4. VGA Printer Web admin interface. Epiphan Video VGA Printer

4. VGA Printer Web admin interface. Epiphan Video VGA Printer

4. VGA Printer Web admin interface

4. VGA Printer Web admin interface

This chapter describes configuring the VGA Printer Web admin interface options. The following parts of the Web admin interface

are described in Chapter 2. “Installation and Getting Started” on page 9 .

• Printing the captured image. See

“Printing a Captured Image” on page 33

.

• Changing the VGA Printer IP address. See “Changing the

VGA Printer IP Address” on page 22 .

This chapter describes:

Adding or Changing the Administrator’s Password

Configuring the VGA Printer device

Configuring the Ethernet Bridge For Use if You Have Only

One Ethernet Connection

Using the VGA Printer device as a DHCP Server

Changing VGA Printer Sound Volume

Configuring VGA2USB Adjustments

Rebooting or Restarting the VGA Printer device

Maintenance Configuration

Web Page Configuration

Date and Time Configuration

Firmware Upgrade

System Information

User Guide Page 35

4. VGA Printer Web admin interface Adding or Changing the Administrator’s Password

Adding or Changing the

Administrator’s Password

Add a password for the Web admin interface to control access to the interface. You can add a password or change the password at any time.

Note:

If you lose or forget the admin password you can contact

Epiphan Technical Support for help to reset it.

To add a password to the Web admin interface

1

Log into the Web admin interface.

The Change Administrator's Password section appears at the top of the Web admin interface.

Figure 18:Change Administrator's Password

2

Enter and repeat the new password.

The password is case sensitive and can include up to 255

ASCII characters.

3

Select

Change Administrator Password

and select

Continue

.

The password changes and you must log into the Web admin interface again.

4

Log into the Web admin interface with the admin user name and the new password.

To delete the Web admin interface password

You can delete the Web admin interface password if you don’t want to require administrators to enter a password to log into the

Web admin interface.

Page 36 Epiphan VGA Printer

4. VGA Printer Web admin interface Configuring the VGA Printer device

Note:

Removing the Web admin interface password makes it easier for unauthorized users to change the VGA Printer configuration.

1

Log into the Web admin interface.

The Change Administrator's Password section appears at the top of the page.

2

Delete the characters from the Administrator’s password and the Repeat the password fields.

3

Select

Change Administrator’s Password

.

The password is deleted and you must log into the Web admin interface again.

4

Log into the Web admin interface with the admin user name and no password.

Configuring the VGA Printer device

You can use the Configure VGA Printer section of the Web admin interface to configure color transformations, page fit, and to add annotations and the date and time to the pages printed by the

VGA Printer device.

When you are done configuring the printer, select Change Printer

Settings to apply the changes.

Figure 19:Configuring the VGA Printer device

User Guide Page 37

4. VGA Printer Web admin interface Configuring the VGA Printer device

Configured

Printer

Color

Transformation

Shows the current default printer. This is the printer you are configuring the VGA Printer device for.

In some cases, you may want to transform some of the colors in the print of the captured image. For example, if you are capturing images with a dark background and white text you might want to select

Invert all colors

so that in the printed image the background is light and the text is dark.

You can also select

Invert black only

, if you want to keep the colors the same in the printed image but convert black in the captured image to white in the printed image.

You might want to select this option if the captured image has a lot of black in it.

If you select

Invert all colors

or

Invert black only

you can also enter a %

invert threshold

value to control the brightness of the printed inverted image. The higher the %invert threshold the brighter the image.

Note:

Color transformations affect the printed image only and not the captured image displayed on the VGA Printer Web admin interface.

Page 38 Epiphan VGA Printer

4. VGA Printer Web admin interface Configuring the VGA Printer device

Page Fit

Annotation

The VGA Printer device prints one image per page and scales captured images up or down to fit on the page size configured for the printer.

Fit image keeping original aspect ratio

is the default setting. This setting scales the image to fit on the printed page without distorting the image. This setting may result in white space on the printed page if the image doesn’t match the shape of the page.

You would usually select this page fit option to avoid distortion of the image if the shape of the captured image is very different from the shape of the printer page.

Select

Fit image to fill the whole page

to scale the image to fill as much of the printed page as possible. Usually you would only select this option if the captured image closely matched the shape of the printed page. If the captured image was a much different shape than the page this page fit option could distort the image an unacceptable amount.

You can select

Add annotation to the printed page

to add text to each captured image printed by the VGA Printer device. The text appears at the bottom of the page. Add the text for the annotation to the

Annotation text

field.

You can also select

Include timestamp to the annotation

to add the current date and time to the right of the annotation in the printed image. The date and time format is yyyy-mm-dd hh:mm:ss.

User Guide Page 39

4. VGA Printer Web admin interface Configuring the Ethernet Bridge For Use if You Have Only

Configuring the Ethernet Bridge For

Use if You Have Only One Ethernet

Connection

You can use the ethernet bridge setting to connect devices or networks to the VGA Printer ETH 1 and ETH 2 ports. This section describes:

Connecting a PC and an Ethernet Network to the VGA Printer

Device

Connecting a Network Printer Directly to the VGA Printer

ETH 2 Port

Connecting a PC and an Ethernet Network to the VGA Printer Device

In some cases you may only have one network connection available for a PC and for the VGA Printer device. To connect both the PC and the VGA Printer device to the network you can do the following.

To connect a PC and an Ethernet network to the VGA

Printer device

In this configuration the VGA Printer ETH 1 and ETH 2 interfaces act like a 2-port hub allowing the PC to connect to the network.

For best performance you should connect the PC to ETH 1 and the

Ethernet network to ETH 2. Also, the overhead required to forward packets between ETH 1 and ETH 2 can affect the performance of the device. You can temporarily improve performance by disconnecting ETH 2 from the network.

1

Log into the Web admin interface.

2

In the

Ethernet Bridge

section, select

Enable

.

3

Select

Change Ethernet Bridge Configuration

.

4

Select

Continue

.

Page 40 Epiphan VGA Printer

4. VGA Printer Web admin interface Configuring the Ethernet Bridge For Use if You Have Only

5

Scroll down the Web admin interface to the

Reboot the system

section and select

Reboot

. Then select

Continue

.

It takes a few minutes for the device to reboot.

6

Connect ETH 1 directly to the PC using a cross-over or regular

Ethernet cable.

7

Connect ETH 2 to the network.

Figure 20:Connecting a network and a PC to the VGA Printer device

Ethernet

Network

ETH 2

VGA

Cable

ETH 1

VGA source

PC

Connecting a Network Printer Directly to the

VGA Printer ETH 2 Port

You can use the following procedure to connect a supported network printer directly to a VGA Printer Ethernet port. Usually you would connect the printer to the ETH 2 port and keep the

ETH 1 port available for connecting a PC or for connecting the

VGA Printer device to a network.

User Guide Page 41

4. VGA Printer Web admin interface Configuring the Ethernet Bridge For Use if You Have Only

This procedure is useful if you do not have access to a local

Ethernet network and you want to connect a network printer.

This procedure can also be useful if you have only one Ethernet connection and you want to connect both the VGA Printer and a network printer to the network.

To connect a network printer directly to the VGA Printer

ETH 2 port

In this configuration the ETH 1 and ETH 2 interfaces act like a

2-port hub allowing both the network printer and the PC to connect to the VGA Printer device.

For best performance you should connect the PC to ETH 1 and the printer to ETH 2. Also, the overhead required to forward packets between ETH 1 and ETH 2 can affect the video capture performance of the device. To improve performance do not print from the PC and the VGA Printer device at the same time.

Note:

This procedure uses example IP addresses for the network printer, the PC, and the VGA Printer device. You can use any three addresses as long as they are on the same subnet.

1

Manually configure the network printer with an IP address netmask, and gateway. For example:

IP address

: 192.168.10.102

Netmask

: 255.255.255.0

Gateway

: 192.168.10.200

2

Connect the VGA Printer ETH 1 port directly to the PC’s

Ethernet port using a cross-over cable.

Page 42 Epiphan VGA Printer

4. VGA Printer Web admin interface Configuring the Ethernet Bridge For Use if You Have Only

3

Log into the Web admin interface.

If you have been able to assign the VGA Printer an IP address log in using that IP address. Otherwise, use the following steps:

• Change the IP address of the PC connected to ETH 1 to:

IP Address:

192.168.255.249

Subnet Mask:

255.255.255.252

Follow the instructions for your operating system. If your operating system supports adding more than one IP address, then you can add this IP address as a second IP address instead of changing the current address.

• Start a web browser on the PC and browse to: http://192.168.255.250

• Enter the following:

User Name:

admin

Password:

(no password required)

• Press Enter to log into the Web admin interface.

4

In the

Ethernet Bridge

section, select

Enable

.

5

Select

Change Ethernet Bridge Configuration

.

6

Select

Continue

.

7

Scroll down the Web admin interface to the

Reboot the system

section and select

Reboot

. Then select

Continue

.

It takes a few minutes for the device to reboot.

8

Scroll down to

Change IP Address

.

9

Set

How to obtain IP address

to

Use static address

.

10

Enter the following network settings:

IP:

Mask:

Gateway:

DNS server:

192.168.10.101

255.255.255.0

192.168.10.200

(leave blank)

User Guide Page 43

4. VGA Printer Web admin interface Configuring the Ethernet Bridge For Use if You Have Only

11

Change the IP address of the PC connected ETH 1 to:

IP Address:

192.168.10.103

Subnet Mask:

255.255.255.252

12

Connect ETH 2 directly to the printer Ethernet port using a cross-over or regular Ethernet cable.

13

Log into the Web admin interface by browsing to the following IP address: http://192.168.10.101

14

Follow the instructions in

“Adding Printers” on page 27

to add the network printer to the VGA Printer configuration.

Figure 21:Connecting a network printer directly to the VGA

Printer ETH 2 port

Printer

(Print Captured

Images)

ETH 2

VGA

Cable

ETH 1

VGA source

PC

Page 44 Epiphan VGA Printer

4. VGA Printer Web admin interface Using the VGA Printer device as a DHCP Server

Using the VGA Printer device as a DHCP

Server

You can configure the VGA Printer device to act as a DHCP server on the network. To configure the VGA Printer device to act as a DHCP server, enable the DHCP server on the device and enter the range of IP addresses that the DHCP server can provide.

You might want to configure the VGA Printer DHCP server if the network you are connecting your the VGA Printer device to does not have a DHCP server and you want to automatically set the IP addresses of the some of the devices on your network using

DHCP.

To enable the VGA Printer DHCP server

1

Log into the Web admin interface.

2

Scroll down to the

DHCP Server

section.

Figure 22:DHCP server

3

Select

Run DHCP Server

.

4

Enter the Start and End addresses of the IP address range that the DHCP server can assign to devices on the network.

5

Select

Change DHCP Server Configuration

.

6

Scroll down to

Reboot the system

.

7

Scroll down the Web admin interface to the

Reboot the system

section and select

Reboot

. Then select

Continue

.

It takes a few minutes for the device to reboot and resume operation with the new DHCP server configuration.

User Guide Page 45

4. VGA Printer Web admin interface Changing VGA Printer Sound Volume

Changing VGA Printer Sound Volume

You can configure the VGA Printer device to produce a sound each time a print request is received. You can also set the sound volume level. Set sound volume to 0 to turn sound off.

You can set the sound volume to 10, 25, 50, 75, or 100. Try different sound levels until you find the one that works for you.

Configuring VGA2USB Adjustments

The VGA Printer device automatically adjusts image capture settings every time it starts up. This automatic adjustment is repeated every 60 seconds during operation. You can change the interval between automatic adjustments if you want them to occur more or less often.

Normally you would not have to make manual image adjustments. However, you may have special requirements or for other reasons have image quality problems that can only be fixed by making manual adjustments.

The Web admin interface contains most of the information that you need to make image adjustments including a brief description of the affect of each adjustment and the adjustment range.

Because image adjustments are made automatically there are no default image adjustment settings. Also, changing image adjustments means making relative adjustments from the settings auto configured by the system.

To configure image adjustments from the Web admin interface

1

Log into the Web admin interface.

2

Scroll down to the

VGA2USB Adjustments

section.

Page 46 Epiphan VGA Printer

4. VGA Printer Web admin interface

Figure 23:Image adjustment options

Configuring VGA2USB Adjustments

3

Enter values for the image capture settings that you want to adjust.

For information about each setting, see “Image Adjustment

Settings” on page 48

.

4

Select

Save and Apply VGA2USB Adjustments

.

5

Select

Continue

.

If image adjustments are required, you may need to make them in small increments to avoid loss of image synchronization. If image synchronization is lost, the device will stop responding and stop capturing images. You may have to wait a few minutes before the device will start responding again. You can disconnect the video cable for 10 seconds to reset image synchronization. You can also reset image synchronization by restarting the device. See

“Rebooting or Restarting the VGA Printer device” on page 50 .

To reset image adjustments from the Web admin interface

1

Log into the Web admin interface.

User Guide Page 47

4. VGA Printer Web admin interface Configuring VGA2USB Adjustments

2

Scroll down to the

VGA2USB Adjustments

section.

3

Delete the values from the fields for each image adjustment that you want to reset.

4

Select

Save and Apply VGA2USB Adjustments

.

5

Select

Continue

.

Image Adjustment Settings

Interval

Vertical shift

Horizontal

Shift

Phase

Change the interval between automatic adjustments if you want them to occur more or less often.

Configure vertical shift to offset the captured image position. For example, a captured image shifted slightly downward (vertically), can be corrected with minor adjustments to the vertical shift settings.

Increasing or decreasing the value entered in the

Vertical Shift field shifts the image up or down.

Configure horizontal shift to offset the captured image position. For example, a captured image shifted slightly to the right (horizontally) can be corrected with minor adjustments to the horizontal shift settings.

Increasing or decreasing the value entered in the

Horizontal Shift field shifts the image to the left or right.

Configure Phase (also called sampling phase) to adjust the horizontal resolution of the image.

Improperly adjusted phase will result in a fuzzy image. You can adjust the sampling phase in small steps until a sharper image is displayed.

Page 48 Epiphan VGA Printer

4. VGA Printer Web admin interface Configuring VGA2USB Adjustments

PLL adjustment

Offset and

Gain

Aspect

Ratio

Configure PLL to adjust the vertical synchronization properties of the image. The

PLL adjustment may need to be changed when there is a repetitive distortion or blurriness on the horizontal axis of the image. You can adjust the PLL setting in small steps until a sharper image is displayed.

Use the offset and gain controls together to optimize image quality. Increasing gain amplifies weak signals but also increases noise.

Increasing offset reduces background noise but also reduces the overall signal.

Balance offset and gain to achieve the best quality image. You should adjust these settings by the smallest values possible to achieve the best results. You can compensate for a large change to one by making a large change to the other, but setting both offset and gain to high values can result in poorer video quality.

Set the aspect ratio of the captured image. The default aspect ratio is 4:3. You can change the aspect ratio to wide mode so that the device can accurately capture wide aspect ratio VGA modes.

It's not always possible for the Epiphan device driver to distinguish between video modes when they have the same number of rows, for example, 1024x768 and 1280x768. You can change the aspect ratio to Wide Mode if you want the driver to choose wide video mode in these situations.

User Guide Page 49

4. VGA Printer Web admin interface Rebooting or Restarting the VGA Printer device

Rebooting or Restarting the VGA

Printer device

Some configuration changes, require you to reboot the VGA

Printer device. For an example, see

“Changing the VGA Printer IP

Address” on page 22

. You may also want to reboot the VGA

Printer device for other reasons.

To reboot or restart the device

1

Log into the Web admin interface.

2

Scroll down to

Reboot the system

.

3

Select

Reboot

.

The VGA Printer device takes a short time to reboot and resume operation.

Maintenance Configuration

The VGA Printer device uses the maintenance configuration settings that you set on the Web admin interface to communicate with the Epiphan maintenance server. This allows Epiphan to review the VGA Printer configuration, firmware version, and other basic operating parameters. If you are having problems with the VGA Printer device and you contact Epiphan Support, the support team can use this maintenance information to help remotely troubleshoot the problems.

Note:

The VGA Printer device does not send private information to the Epiphan maintenance server, just basic operation and configuration information. The amount of traffic sent to the

Epiphan maintenance server is small. The traffic should not affect network or Internet connection throughput.

Page 50 Epiphan VGA Printer

4. VGA Printer Web admin interface Maintenance Configuration

By default, the maintenance configuration uses TCP port 30 to communicate with the Epiphan maintenance server. The default address of the Epiphan maintenance server is

epiphany.epiphan.com

. The VGA Printer device must be able to find a DNS server to resolve the epiphany.epiphan.com address and then must be able to connect to this address on the Internet using TCP port 30.

If there is a firewall or other device protecting the network, the configuration of this device may have to be changed for the VGA

Printer device to connect to the Epiphan maintenance server.

Contact your network administrator for assistance.

Figure 24:Maintenance Configuration

You can change the following maintenance configuration settings.

Enable

Remote

Support

Allow Epiphan Support to log into the VGA

Printer device with special access privileges to troubleshoot problems.

Enable

Connection to

Maintenance server

The VGA Printer device establishes an outgoing

TCP connection to the Epiphan maintenance server using TCP port 30. Using this connection, the device sends information to the Epiphan maintenance server and Epiphan Support can use this maintenance connection to remotely log into your VGA Printer device.

User Guide Page 51

4. VGA Printer Web admin interface Maintenance Configuration

Maintenance

Server

The address of the Epiphan maintenance server.

This address is usually epiphany.epiphan.com.

However, you can change this address if required, (but usually only as recommended by

Epiphan Support). For example, you may have to change this address to a numeric IP address if the

VGA Printer device cannot connect to a DNS server.

Maintenance

Port

The TCP port that the VGA Printer device uses to connect to the Epiphan maintenance server. This is usually port 30. However, you can change this address if required or as recommended by

Epiphan Support.

You can enable and disable remote support and the connection to the maintenance server independently. The following table describes the results of different configurations.

Enable

Remote

Support

Enable

Connection to

Maintenance

Server Result

Yes Yes

No Yes

The VGA Printer device connects to the Epiphan maintenance server. If required, Epiphan Support can remotely connect to the device with special access privileges.

The VGA Printer device connects to the Epiphan maintenance server.

Epiphan Support can remotely connect to the Web admin interface with the same access privileges as an administrator.

Page 52 Epiphan VGA Printer

4. VGA Printer Web admin interface Maintenance Configuration

Enable

Remote

Support

Enable

Connection to

Maintenance

Server Result

Yes

No

No

No

The VGA Printer device does not connect to the Epiphan maintenance server. If required, Epiphan Support can remotely connect to the device with special access privileges if you provide remote access to the network in some other way (for example, using port forwarding). Contact

Epiphan Support for assistance.

The VGA Printer device does not connect to the Epiphan maintenance server. If required, Epiphan Support can remotely connect to the Web admin interface with the same access privileges as an administrator if you provide remote access to the network in some other way (for example, using port forwarding). Contact

Epiphan Support for assistance.

To change maintenance configuration settings

1

Log into the Web admin interface.

2

Scroll down to

Maintenance Configuration

.

3

Change settings as required and select

Save and Apply

Settings

.

The changes take effect right away.

User Guide Page 53

4. VGA Printer Web admin interface Web Page Configuration

Web Page Configuration

You can use the Web admin interface web page configuration setting to change how often the captured image is refreshed.

Change the Autorefresh time as required and select

Save and

Apply Settings

.

Date and Time Configuration

You can set date and time manually or you can Enable Time synchronization. It is important that the VGA Printer device has the correct time if you include the date and time annotation on printed pages.

Enable time synchronization, to update the date and time using a time server. You can select

NTP

to get date and time updates from a public network time protocol (NTP) server by connecting to the server over the Internet. NTP users UDP port 123. The default NTP server is

time.nrc.ca

. You should change this to an

NTP server recommended for your location.

For complete information about NTP, including a list of recommended NTP servers, see The NTP Public Services Project .

To make sure you get the correct time from an NTP server, you should select the correct

Time Zone

for the location of the VGA

Printer device.

If the device cannot connect to the Internet and if you have an

RDATE server on your network, you can set time synchronization to use

RDATE

(defined by RFC 868).

Contact your network administrator for the address of the RDATE server and enter the

RDATE server IP address into the Server IP Address field.

In both cases, you can control how often the date and time are updated. The

Time Update

interval can be every 1, 6, 12, or 24 hours. You can also set Time Update to check for the correct date and time just before printing an image.

Page 54 Epiphan VGA Printer

4. VGA Printer Web admin interface Firmware Upgrade

Firmware Upgrade

You can obtain new firmware versions from Epiphan Support.

New firmware is released to fix known problems or to add new features.

To install new firmware

Installing new firmware can take several minutes. Once you start a firmware upgrade, you cannot print captured images until the firmware upgrade is complete.

1

Get the new firmware file from Epiphan Support.

2

Place a copy of the firmware file on the PC you use to connect to the Web admin interface.

3

Log into the Web admin interface.

4

Scroll down to

Firmware Upgrade

.

5

Select

Browse

and then select the firmware file.

6

Select

Save and Upgrade Firmware

.

The firmware uploads. The VGA Printer device unpacks the firmware update file, verifies the contents and then upgrades the firmware.

Messages similar to the following appear on the Web admin interface.

Local update detected: /tmp/rfc1867_NHWCk7

Unpacking update...

linux initrd.img

rootfs.img

syslinux.cfg

default.cf.default

boot.img

md5sum

Verifying update...

linux: OK initrd.img: OK rootfs.img: OK syslinux.cfg: OK default.cf.default: OK boot.img: OK

Substituting files. Do NOT interrupt...

Update completed successfully. You can reboot the system.

User Guide Page 55

4. VGA Printer Web admin interface System Information

7

Select

Continue

.

To complete the firmware upgrade you must reboot the VGA

Printer device.

8

Scroll to the

Reboot the system

section of the Web admin interface, select

Reboot

and select

Continue

.

The device reboots and starts up running the new firmware.

This may take a few minutes.

9

Log into the Web admin interface.

10

Scroll down to

System Information

and select

View System

Information

.

11

Confirm that the VGA Printer device is running the new firmware version.

System Information

Scroll down to

System Information

and select

View System

Information

to display the following:

• The current firmware version including details of the firmware build

• Information about the Frame Grabber installed in your VGA

Printer

• Information about the VGA Printer device CPU

• VGA mode information.

Figure 25:System Information

Page 56 Epiphan VGA Printer

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