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To
access
TRS-XENlX
,
you
must log in as the super-user
-
or
"root"
-
and
tell the
system
which
serial channel (A or
B)
you
plan to use. For
example,
enable
a channel
by typing
:
e n ab
1
e
t t
Y
0 1
(ENTER)
e n
ab
1
e
t t }'
0
2 (ENTER)
or
Enable Channel A
Enable Channel B
The
serial channel
that is used must be disabled before using the
cu
command for
making
a call (originate
mode)
or
"dial
out." To disable a channel (A or
8),
type:
d
i
s
ab 1 e
t t
Y
0
1
(ENTER)
or
d
i
s
ab
1
e
t t
y
0 2
(ENTER)
To operate in automatic answer mode:
Set the
AUTO-ANSWER
switch,
located
on the
modem's rear panel, to the position
nearest the DB-25 jack
and
power up the DC-2212. From
a
power-on condition, the
DC-2212 will power up into the
call-waiting state and
monitor the telephone line for
an
incoming
call.
When DTR
is asserted (this
happens
when
logins are
allowed using
the
enable command),
the modem
will pick
up
the call and assume auto-answer,
10-bit
word,
1200 baud
operation.
Note: This
switch is only read (active)
when power is freshly
applied
to
a
DC-2212
operating TRS-XENIX
.
Be
sure you
tum the modem's power OFF, then ON
again,
whenever you
change the position
of
the
switch.
Dial Out
Set the
AUTO-ANSWER switch on the
modem
's
rear
panel to the position nearest the
DB-25 jack, and power up the DC-2212. Program the modem to
automatically dial a
call by
entering
the
cu
command:
cu phone number -s 1200
(ENTER)
where
phone number
is the number
you want dialed and the
-s
value
is the baud
rate
selected.
To dial the
call out on Channel
B, type:
cu phone number -s 1200 -a /dev/cua1
-I
/dev/cul1
(ENTER)
When
the prompt
connected appears, you can begin communications. See your
TRS-XENIX
system's
documentation
for
more
information on
using
a
modem with
TRS-XENIX
.
Note:
cu
will assume
tone dialing. If
your
phone
system
requires pulse
(rotary)
dialing,
insert
"
r" before
entering
the phone number.
12
....
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