Westermo MR Series - Manual (Page 308)

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Web Interface and Command Line Reference Guide www.westermo.com
Confi gure > X25 > PADs > PAD n 4.109
There are two main elements to the configuration procedure for accessing X.25 networks:
General and service related parameters
PAD parameters (X.3)
Each X.25 PAD configuration page also includes a sub-page detailing the X.3 PAD parameters. Col-
lectively this set of values is known as a PAD profile. Your unit contains four pre-defined standard
PAD profiles numbered 50, 51, 90 and 91. You may also create up to four custom PAD profiles num-
bered 1 to 4 for each PAD instance.
Using the Web Page(s)
Each PAD configuration page is split into two sections. The first section includes general PAD
param eters; the second includes parameters relating to the backup interface. The parameters are as
follows:
Answering NUA:
This is the NUA that the unit responds to for incoming X.25 calls.
Calling NUA:
This NUA will be used as the calling NUA when an outgoing X.25 call is made.
Answering CUG:
The PAD will only answer calls with this Call User Group (CUG) specified.
Auto macro:
This parameter specifies the name of an X.25 call macro that is used when an ATD command is
received by the unit. The ATD command is ignored, and a PAD CALL command using the macro
replaces it. The purpose of this feature is to allow non-PAD terminals to use an X.25 PAD net-
work connection. X.25 call macros are set up in the Configure > X25 > Macros web page, or
by using the macro text command.
Default packet size:
This parameter determines the default X.25 packet size. This may be set to “16”, “32”, “64”,
“128”, “256”, “512” or “1024”, but the actual values permitted will normally be constrained by
your service provider.
Layer 2 interface:
This parameter for each PAD is used to select whether it will be used for B or D-channel X.25
operation. For D-channel operation, ensure that the “LAPD” option is selected from the drop-
down menu. For X.25 over an ISDN B-channel, select “LAPB”.
Layer 2 interface #:
The Layer 2 Interface Number is used to specify which Layer 2 instance will be used for this
PAD (0 or 1 for LAPB, 0, 1 or 2 for LAPD).
Remote IP address (XOT only):
If the layer 2 interface is specified as “TCP” for an XOT call, then this field indicates the destina-
tion host that will answer the XOT call.
IP Stream mode:
This parameter can be set to “Off”, “TCP”, or “UDP”. When set to “Off”, operation of the PAD
is unaffected. When set to “TCP”, when the PAD makes a call, a TCP socket is opened and the
PAD data is sent via the TCP socket. This is different to XOT operation because there are no
X25 head ers or XOT headers as the PAD data is placed directly in the socket.