Datatek UMI User Manual

Page 43

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U N I V E R S A L M E D I A T I O N I N T E R F A C E ( U M I ) U S E R M A N U A L

04/30/09

43

semicolon will forward any accumulated data including the semicolon. A value of

EXCL indicates

that an exclamation point will forward any accumulated data including the exclamation point. A
value of

ALL indicates that all data is to be forwarded immediately. The ALL option has the effect

of generating single user character X.25 packets on this virtual circuit. The

GRPx values specify

selected groups of forwarding characters.

GRP1 forwards on ESC, BEL, ENQ, and NAK. GRP2

forwards on DEL, CAN, DC2.

GRP3 forwards on ETX, EOT. GRP4 forwards on HT, LF, VT, and

FF. Multiple forwarding conditions are allowed simultaneously. Setting

padfwd

to a value

aggregates with the previous value of

padfwd

. The

padfwd=none

is required to clear the

forwarding conditions.

The

padidle=<#X.3 ticks>

parameter refers to reference #4 of the X.3 parameter list. This is the

time forwarding condition. When it expires, it will forward any data collected to the X.25 circuit.
The timer is reset to the specified timer value whenever a forwarding condition is reached. The
value is based on ticks of 1/20

th

of a second each per the X.3 specification.

The

padparity=< TRANS | EVEN | ODD >

parameter is not present in the X.3 parameter list. It

allows special parity treatment for interface to network elements that require parity. The default
value is transparent operation. The value of

TRANS sets the operation to be transparent. When

the parity treatment is transparent, the data is not modified in either direction. The value of

EVEN

sets the operation to be even parity towards the (B)X.25 device, and stripped parity towards the
TELNET. The value of

ODD sets the operation to be odd parity towards the (B)X.25 device, and

stripped parity towards the TELNET.

The

padcrlf=<NONE | RMT | VC | BOTH

>

parameter refers to reference #13 of the X.3

parameter list. This is the action to be taken when a CR is received in the data stream from the
remote IP endpoint. A value of

NONE indicates that there is to be no LF (line feed) insertion. A

value of

RMT will insert an LF following a CR whenever it is sent towards the remote IP endpoint.

A value of

VC will insert an LF following a CR whenever it is sent towards the X.25 virtual circuit.

A value of

BOTH will insert an LF following a CR in either direction.

The

padcmap=< ON | OFF >

option provides the automatic case mapping from lower case to

upper case. When the option is set to

ON, all lower case characters are automatically converted

to upper case. When

OFF, no transformations are performed.

The

padapi=< TELNET | RAW >

option provides a means of selecting the PAD virtual circuit to

use

raw protocol. The raw protocol is essentially asynchronous, but without the benefit of Telnet

RFC encapsulation. It is used for applications that do not implement the Telnet RFC. The default
for this option is to use the Telnet encapsulation.

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