AT&T 3551 Switch User Manual


 
Operating the DSU
4-173550-A2-GB20-10 February 1995
Directory
The DSU’s dial backup Directory (Dir) can store up to
ten telephone numbers (dial strings) so the DBM can call
other DBMs or modems. Directory entries are numbered
from 1 to 10. Each dial string in the directory can be up to
36 characters in length. Refer to Table 4-6 for numbers
and characters that can be used.
When the dial string or changes are complete, enter an
underscore ( _ ) to the immediate right of the last
character; this ends the dial string field.
NOTE
Do not load duplicate telephone
numbers into the Directory;
telephone numbers should be
unique.
Entering a Telephone Number
For the following example, we will add a dial string
(telephone number) to Backup Directory 1. The number to
be entered is 555-1234.
To add or change a telephone number:
Procedure
1. Select Local.
2. Press the
key to display Confg (Configuration
branch).
3. Select Confg.
4. Select Dir if entering a telephone number into the
Backup Directory.
Press the
key to display then select Phone if
entering the local DSU’s telephone number. This
telephone number is entered similarly to entering
a number into Dir.
5. Select Chang (F1) to add or change a telephone
number.
The Enter Dir screen appears.
Press the F1 key () to increment the Directory
entry indicator (the default is 1). For this example,
assume that you are entering your first directory
entry.
6. Select Load (F2).
The Directory entry appears on the first line; the
cursor is positioned in the first position of the
currently empty Directory.
F1
1 :
Undo
F2
F3
If the number had been entered previously, that
number would appear on the first line, following
the colon (:).
For numeric screens, the following applies:
Press the F1 key () to increment the digit.
Press the F2 key () to decrement the digit.
Press the
or keys to move the
blinking cursor one position to the left or
right.
Press the F3 key (Undo) to restore the number
as it was first displayed so you can start over.
Refer to Table 4-6 to see all available directory
and password entry characters.
7. Press the F1 key until the number 5 appears.
8. Press the
key to move to the next position.
9. Repeat the process until all numbers in the
telephone number have been entered.
F1
1 : 5 5 5 1 2 3 4
Undo
F2
F3
NOTE
A dial string cannot have any
separating characters or spaces
(i.e., 555-1234 or 555 1234).
Other valid characters
can be
interspersed as needed : *, #, t,
p, w, and comma (,).