AT&T MERLIN LEGEND Installation & Maintenance Manual page 173

Installation
10.
Plug the male end of the EIA-232D cable into PORT 1.
11.
Connect the other end of the EIA-232D cable to the data
terminal or computer port.
12. If the automatic calling unit function is to be used, connect a
25-pin EIA cable between the RS-366 interface (PORT 2) and
the computer's RS-366 ACU interface.
13.
Plug the power cord for the 7500B into the AC outlet.
14. Plug the D8W cord into the telephone wall jack.
Note: Before plugging the D8W cord into a wall jack, make
sure you do not need the terminating resistor adapter. If you
need it, see "Installing the Terminating Resistor Adapter" later
in this chapter.
Stand-Alone, High-Speed, Synchronous DCE Configuration.
Follow the steps below to configure the ISDN 7500B Data
Module for high-speed, synchronous modem operation:
1. Remove the 7500B from its box or turn off the power if the
7500B is already installed.
2. Remove the high-speed, synchronous enhancement board
from its box.
3. Open the door panel on the 7500B.
Insert a pen into the small hole near the LINE label on the
a.
back panel.
b. Push in on the tab in the hole while you pull upon that side
of the door.
c. Repeat steps a and b for the other side of the door panel
by sticking the pen into the small hole near the PORT 2
label.
d. Lift off the door and set it aside.
Data Adapters 3-65