Please check

www.sitecom.com

for up to date drivers & utilities, manuals and support

51

-

nrt-VBR (non-real-time Variable Bit Rate): When nrt-VBR

is selected, the SCR and MBS fields are enabled.

-

rt-VBR (real-time Variable Bit Rate): When rt-VBR is

selected, the SCR and MBS fields are enabled.

PCR

Peak Cell Rate, measured in cells/sec., is the cell rate which the source

may never exceed.

SCR

Sustained Cell Rate, measured in cells/sec., is the average cell rate over

the duration of the connection.

MBS

Maximum Burst Size, a traffic parameter that specifies the maximum

number of cells that can be transmitted at the peak cell rate.

Apply Changes

Set new PVC OoS mode for the selected PVC. New parameters will take effect after save

into flash memory and reboot the system.

Undo

Discard your settings.

Sitecom ADSL2+ Modem DC-227

52

9 Toolbox

The first time you log into the system, you use the default password. There are two-level

logins:

admin

and

user

. The

admin

and

user

password configuration allows you to change

the password for administrator and user.

Field

Description

User Name

Selection of user levels are: admin and user.

Old Password

Enter the old password for this selected login.

New Password

Enter the new password here.

Confirmed Password Enter the new password here again to confirm.

Please check

www.sitecom.com

for up to date drivers & utilities, manuals and support

53

9.1 Timezone

Simple Network Timing Protocol (SNTP) is a protocol used to synchronize the system time to

the public SNTP servers. The DSL device supports SNTP client functionality in compliance

with IETF RFC2030. SNTP client functioning in daemon mode which issues sending client

requests to the configured SNTP server addresses periodically can configure the system clock

in the DSL device.

Field

Description

Current Time

The current time of the specified time zone. You can set the current time

by yourself or configured by SNTP.

Time Zone Select

The time zone in which the DSL device resides.

Enable SNTP client

update

Enable the SNTP client to update the system clock.

SNTP server

The IP address or the host name of the SNTP server. You can select from

the list or set it manually.

Sitecom ADSL2+ Modem DC-227

54

9.2 ACL

The Access Control List (ACL) is a list of permissions attached to the DSL device. The list

specifies who is allowed to access this device. If ACL is enabled, all hosts cannot access this

device except for the hosts with IP address in the ACL table.

Field

Description

ACL Capability

Enable/disable the ACL function

Enable

Check to enable this ACL entry

Interface

Select the interface domain: LAN or WAN

IP Address

Enter the IP address that allow access to this device.

Please check

www.sitecom.com

for up to date drivers & utilities, manuals and support

55

9.3 Firmware Upgrade

This page allows you to upgrade the modem’s firmware.

To upgrade the firmware for the DSL device:

-

Click the

Browse

button to select the firmware file.

-

Confirm your selection.

-

Click the

Upload

button to start upgrading.

IMPORTANT!

Do not turn off your DSL device or press the Reset button while this procedure

is in progress.

IMPORTANT!

Make sure you use a wired client to upgrade the firmwqare from. Disable your

wireless network card to prevent possible damage due to incomplete upgrading.