=[ x25-box.com ]=

B 2.3 RR (Receiver Ready) Packet
Packet layout for modulo 8 working:
1st byte         2nd byte          3rd byte
GFI LCG            LCN             P (R)  TYPE
The layout of the third byte is as follows:
High order                  low order
8 7 6 5 4           3  2    1
R   R  R   0    0   0  0    1
where— RRR represents the P(R) value
For modulo 128 working the packet layout is as follows:
Packet layout:
1st byte         2nd byte          3rd byte    4th byte
GFI LCG            LCN               TYPE      P (R)
• The packet TYPE is 00000001
The layout of the fourth byte is as follows:
High order           low orderbit
8 7 6 5 4 3 2 1
R R R R R R R 0
where— RRRRRRR represents the P(R) value.
B 2.4 RNR (Receiver Not Ready) Packet
Packet layout for modulo 8 working:
1st byte         2nd byte          3rd byte-
GFI LCG            LCN             P (R) TYPE
The layout of the third byte is as follows:
High order           low order bit
8 7 6 5 4 3 2 1
R R R 0 0 1 0 1
where— RRR represents the P(R) value

НАЗАД