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Byte
Value
Setting
Meaning
6
X'30'
Common Protocols·
0 .......
Reserved·
.0 ......
Function Management Header usage:
o
=
PL V and 3708 cannot exchange FM header
· . 1 .....
Bracket Usage
1
=
Bracketed session is used. Both PLV and 3708 must use
bracket protocols.
· .. 1 ....
Bracket Termination Protocol
1
=
Bracket termination rule 1 is used.
.... 0 ...
Alternate Code Selection .
Both the PLV and 3708 must use EBCDIC.
..... 000
Reserved .
7
X'80'
Common Protocols
10 ......
Normal Flow Send/Receive Mode Selection
10
=
This session uses half-duplex, flip-flop transmissions
(HDX-FF)
· .0. " ..
Recovery Responsibility
o
=
PLV is responsible for error recovery.
... 0 ....
Brackets First Speaker
o
=
3708 is always the first speaker.
.... 000.
Reserved
· ...... 0
Contention Resolution
o
=
Contention resolved in favor of the 3708
8
X'OO'
00000000
Inbound pacing not supported by the 3708
9
X'XX'
OOxxxxxx
PLV to 3708 pacing value defining the number of RVs that can
be received by 3708 before a pacing response must be
returned. 0
=
no pacing. If running L U type I SCS, this
parameter must not be zero.
10
X'XX'
Max RV size sent by SLU. Expressed as a mantissa (8 - F)
and an exponent of two by which the mantissa is multiplied.
Example - X' 85'
=
256. See RU lengths supported for
more information. If RV size is
<
256, the 3708
rejects the BIND. Recommended size is X' 85 ' .
11
X'XX'
Maximum RV size sent by the PLV. If
size> 4096, 3708 rejects the BIND.
Recommended size is X' 85 ' .
12,13
Ignored by the 3708
14
X'OX'
X'OI'
=
LV type 1 SCS
X'02'
=
LV type 2
X'03'
=
LV type 3 DSC.
15-19
Ignored by the 3708
20
Default number of rows
X'18'
24
X'20'
32
X'2B'
43
X'IB'
27
3-22
IBM 3708 Description
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