IBM 5280 Manual page 243

5285 COMMUNICATIONS MAP
38LS WITH AUTOMATIC ANSWER
PAGE 1 OF
7
ENTRY POINTS
FROM
I
ENTER THIS MAP
-------+----------------------
MAP
I
ENTRY PAGE STEP
NUMBER
I
POINT NUMBER NUMBER
-------+----------------------
3010
I
A 1 001
001
(ENTRY POINT A)
USE THIS MAP TO FIND PROBLEMS
USING THE 38LS WITH WORLD TRADE
LINE PLATE (AUTOMATIC-ANSWER) TO
THE PUBLIC SWITCHED NETWORK.
Is there a telephone associated
with the data station?
Y N
002
(ENTRY POINT
B)
- Connect a jumper from A-D7B02
'-Data Terminal Ready' to
A-D7D08 'GND'.
- Dial the data station from
another telephone.
Is the busy tone present?
Y N
003
- Ring-back tone can be
in another telephone.
station answers after
third ring pulse train.
heard
Data
the
Is the 3.5 second answering
tone (2100 Hz) present?
Y N
Copyright IBM Corp 1980
7 5 4 2
MAP 3016-1
EXIT POINTS
EXIT THIS MAP
I
TO
---------------+--------------
PAGE STEP
I
MAP ENTRY
NUMBER NUMBER
I
NUMBER POINT
---------------+--------------
7
032
I
3018 A
The jumper will permit the machine
to go to data mode after three
good ring trains.
EC840874 PEC839787
ABC D MAP 3016-1