User`s guide

6: BSC 2780/3780 Link Configuration Options
DC 900-1340I 171
Note
When transparent data is received, blocking acts as if message
blocking is set to disable.
Figure 6–1: Transmit w i th Disabled Message Blocking Option
Figure 6–2: Tr ansmit w ith Data Blocking Option
E
TX
S
TX ETB
S
TX ETB ST
X
1
3
2
100100100
Communications LineFreeway
1
024
512
100
1
2
3
EOM
block
100100
Client
DRWG-2440
2nd
block
1st
block
Message
Blocking =
disabled
Message
buffers
Transmit
buffer
5
12
ETX
S
TX
100 100100
Client Freeway
102
4
Message
Blocking =
data blocking
3
00
Communications Line
Message
buffers
Transmit
buffer
1
2
3
EOM
block
DRWG-2441
2nd
block
1st
block