ACC HDLC/LAP-B (ABM) User's Guide

Protocol Specific Configuration
Poll/Select Configuration Values
Chapter 452
Select Word
Figure 4-2 Select Word Format
T1÷2 This is the value of the T1 timer (divided by two). The
valid range is 1 to 63; 0 is not allowed and is an error.
The units are given by the T1 Res (resolution) field (see
below).
T1 Res Resolution of the T1 value above. The values
correspond as follows: 0=10ms, 1 = 100ms, 2 = 1s,
3 = 10s
K Level 2 window size, values 1 to 7. If K=0, then
extended sequence numbering will be used, and the
window size is configured via the “Extended K” field.
If K=0, the link is initialized via a SABME command
rather than the SABM command, used for standard
sequence numbering.
N2 Number of retransmissions, values 1 to 31. Note that
0 is not allowed and is an error.
15 10987654321011121314
T1÷2 (1-63)T1 Res K (0-7) N2 (1-31)