ACC X.25 Protocol User's Guide

Chapter 3 51
ZX25D X.25 Protocol Driver
Virtual Circuit Definitions
Poll Word for X.25 SVC Configuration
D 1 => Set D-bit (End-to-End packet acknowledge) in
auto call packet
STD 1 => take D value from bit 14 of POLL word, else
take D value from X.25 Link Option word D bit
Select Word for X.25 PVC Configuration
Out_pack et
In_packet ThepacketsizeisconfiguredhereforPVCsonly.The
packet sizes available are:
Out_window
In_window The window size is configured here for PVCs only. May
be from one (1) to seven (7) - (0 is not allowed).
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DSTDNotUsed(mustbe0)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Out-packet Out-window In-packet 0 In-window
0 - 128 8 - 256
1 - Reserved 9 - 512
2-Reserved 10-1024
3-Reserved 11-2048
4 - 16 12 - 4096
5 - 32 13 - Reserved
6 - 64 14 - Reserved
7-128 15-240