User guide

Task 7: Install the Terminals
Issue 1 September 1995
2-21
1. Make sure the EIA connector board (located under the top panel) is set to
DCE (the factory default). If not, unplug the card and turn it around to the
DCE setting (see the
7400A Data Module User’s Manual , 555-020-706, for
details).
2. Connect the 7400A data set to the DEFINITY AUDIX system MFB.
a. In the room where the switch and DEFINITY AUDIX system are
located, attach one end of a Group 311 cable to the RS-232
connector labeled PORT B on the MFB Y-cable. Attach the other
end to a 7400A data set.
b. Plug one end of the modular cord (supplied with the data set) into
the
LINE connector on the 7400A data set and plug the other end
into a telephone outlet.
c. Connect the 4-pin connector on one of the 7400A power supplies to
the
POWER connector on the data set, and plug the power supply
into a wall outlet.
d. Set the options and interface baud rate on the 7400A data set.
Refer to
Using the Front Panel in the 7400A Data Module User’s
Manual
, 555-020-706 for details.
3. In the terminal room, connect the 7400B data set to the terminal.
a. If you are installing a new terminal, unpack it according to the
instructions supplied with the terminal.
b. Place the terminal on a suitable table and connect the keyboard.
c. Check the dip switches inside the front panel. If you are not
connecting a telephone with this data set, set the first dip switch (1)
to the ON position (it is shipped in the OFF position, as are all the
others). If you are connecting a telephone, leave all dip switches
OFF.
d. Attach the 7400B data set to an RS-232 port on the terminal (the
DTE port on a 715 BCT).
NOTE:
If you connect the data set to the DCE port on a 715 BCT, you
must also connect a null modem cable between the data set
and the 715 BCT.
e. Plug one end of a D8W cable into the
LINE connector on the 7400B
data set and connect the other end into a telephone outlet.
f. Connect the 7400B power supply to the data set, and plug the
power supply into a wall outlet.
g. Plug the terminal power cord into a wall outlet and power on the
terminal.