User's Manual

Chapter 4 49
Protocol Specific Configuration
Poll/Select/Option Configuration Values
First Option Word
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
T203 Res T203/2 Val (0-63) IUF LargeK (0-127)
T203 Val This is the value of the T203 Idle line timer divided by two.
Setting this field from 1 to 63 translates to T203 timer values of
2 to 126. The units of this timer are given by the T203 Res
(resolution) field (see below). If a value of zero is given for both
this field and T203 Res, a default value of approximately
T200*N200*100/16 will be used for a user-side terminal. (The
default for a network-side terminal is T203 disabled.) If T203
Res is non-zero but this field is zero, T203 will be disabled.
Before configuring T200, you should read the description of
timer configuration at the beginning of this section.
T203 Res Resolution of T203 Val above. The values correspond as
follows:
0 = 10 milliseconds
1 = 100 milliseconds
2 = 1 second
3 = 10 second
IUF Error handling, normal when 0. This means normal error
handling (level 2 link reset) on receipt of unsolicited response
frame with F=1. 1 means Ignore F=1 (treat as F=0) in any
unsolicited response frames.
LargeK Level 2 window size, values 1 to 127. LargeK is only used if K
in the Select Word is 0. It is an error if both K and LargeK are 0.