Westermo MR Series - Manual (Page 271)

271 6622-3201
Web Interface and Command Line Reference Guide www.westermo.com
Confi gure > TPAD > TPAD n 4.97
TPAD is a simplified version of the X.25 PAD specification that is commonly used for carrying out
credit-card clearance transactions. Westermo units support the use of TPAD over the ISDN B and
D-chan nels and also over an IP interface such as GPRS via XOT or TCP. Automatic back-up between
any two of these “layer 2 interfaces” is supported.
Using the Web Page(s)
The Configure > TPAD folder expands to list separate pages for each of the available TPAD
instances. Each page is split into two sections. The first section includes general TPAD parameters
(many of which are common to X.25 PADS). The second includes parameters relating to the backup
interface.
B-channel ISDN #:
This parameter may be used to specify an ISDN number. This is used in cases where no ISDN
number is provided with the ATD command when making an outgoing call.
Prefix #:
This parameter is used to specify a dialling code that the unit will place in front of the tel-
ephone number that is issued by the terminal in the ATD command. For example, if the Prefix
# was set to 0800 and the number specified by the terminal in the ATD command was 123456,
the actual number dialled by the unit would be 0800123456.
Prefix removal #:
This parameter is used to specify a dialling prefix that is normally inserted by the terminal in the
ATD command that is removed by the unit before dialling takes place. For example, if the Prefix
removal # was set to 0800 and the terminal issued an ATD command containing 0800123456
then the actual number dialled by the unit would be 123456.
Note:
Prefix # and Prefix removal # are usually used in conjunction with each other to substitute the
dialling code issued by the terminal for an alternative code.
Suffix #:
The Suffix # parameter may be set to contain additional numbers that are dialled after the
number specified by B-channel ISDN #. For example, if B-channel ISDN # was set to 123456
and Suffix # was set to 789, the actual number dialled would be 123456789.
NUA:
This parameter specifies the X.25 Network User Address to be used for outgoing X.25 calls if
no NUA is specified in the call string.
NUI:
This specifies the X.25 Network User Identifier to be used for outgoing X.25 calls if no NUI is
spec ified in the call string.
Call user data:
This specifies a text string that will be placed in the Call User Data field of an outgoing X.25 call
request packet. Whether or not this information is required will depend on the X.25 host that
you are connecting to. In most cases the information is not required.