User`s manual
Table 2-4 (Cont)
Vector Address Jumpers for Modem Control
Unit
(MCU
Vector Addresses are Modulo
4)
M7807 Jumper
WI·
WS
W4
W6
W7
W3
W2
Vector
Address Bit
D08
D07 D06
DOS
D04
D03
D02
Address
X X X X
I
510
x X X
514
X
X
X X
520
X
X X
524
X X X
530
X
X
534
X X X
X
540
X
X X
544
X X
X
550
X X
554
X
X X
560
X
X
564
X
X
~70
X
574
etc. to
774
Notes:
1.
X means jumper
OUT
2.
Cut only the jumpers shown.
3.
·Jumper
WI
is in for the PDP-I 1/20 with the K.HII and for the PDP-I 1/40,
PDP-I 1/45, and newer PDP-lIs.
1.4.1
Synchronous
Parameter
Selection
Rocker
DIP
switches
are
located
on
each M7839
module
for selection
of
the
following
synchronous
data
channel parameters:
J.
Internal
baud
rate
(1200, 2400, 4800,
96(0)
2.
Full/half
duplex
3.
Parity
(odd/even/none)
4.
Character
length (5, 6,
7,
or
8 bits)
5. Sync
requirement
(whether
one
sync
char-
acter
or
two consecutive, identical
sync
characters
are
required
to
achieve line
synchronization).
2-13
6.
Sync
character
codes
Switch settings for
each
synchronous
parameter
are
listed in
Table
2-5.
Switch locations
are
shown
in Fig-
ure
2-6.
NOTE
Whenever possible, the
parameters
should be con-
figured per customer requirements
at
this time.
If
half-
duplex
or
parity operation is required, this con-
figuration
can
only be done
after
diagnostics have been
run.
DVll
diagnostics
don't
support half-duplex
or
parity operation.