PAD Services

 

 

 

X.3 Parameter Descriptions

Table 6-3

 

(Continued)

 

 

 

 

 

 

16

ETX and EOT only.

 

 

 

 

 

 

 

 

32

HT, LT, VT, FF only.

 

 

 

 

 

 

 

 

64

NUL, SOH, STX, BS, LF, CR, SO, SI,

 

 

 

 

DLE, DC1, DC3, DC4, NAK, SYN,

 

 

 

 

ETB, EM, SUB, FS, GS, RS, and US

 

 

 

 

(all other characters in the first two

 

 

 

 

columns of the International

 

 

 

 

Alphabet #5).

 

 

 

 

 

 

 

 

126

All characters, except

 

 

 

 

alphanumerics.

 

 

 

 

 

 

 

 

127

All characters are data forwarding.

 

 

 

 

 

 

 

 

 

 

 

NOTE

 

The values listed for parameter 3 may be combined by specifying the sum

 

 

of the values. For example, specifying 10 is the same as specifying 2 and

 

8.

 

 

 

 

 

 

 

Table 6-4

 

X.3 Parameter

Description

 

 

 

 

4 - Idle Timer

Specifies a timer duration interval in units of

 

 

1/20 of a second. If the time between characters

 

 

entered at the terminal exceeds the specified

 

 

timer value, the packet being assembled by the

 

 

PAD is automatically transmitted. The range is 0

 

 

through 255. If 0 is specified, there is no idle

 

 

timer and packets will never be transmitted due

 

 

to a time-out.

 

 

 

 

5 - Anc Device

The ancillary device control parameter permits

 

Control

flow control toward the terminal by the PAD. The

 

 

PAD indicates its readiness to receive characters

 

 

from the terminal by transmitting X-ON (DC1) or

 

 

X-OFF (DC3) to the terminal. 0 indicates that

 

 

flow control by the PAD is not operational, and 1

 

 

permits flow control by the PAD.

 

 

 

 

 

 

Chapter 6

167