First Option Word

Protocol Specific Configuration

Poll/Select/Option Configuration Values

T203 Res

T203/2 Val (0-63)

IUF

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

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.

Chapter 4