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Analog Voice and Modem
Data Stations
Analog Voice and Modem
Data Stations
Figure 6-1 shows the equipment configuration for an analog voice and
modem data station.
GPA Settings
The switch on the back of the General Purpose Adapter (GPA) used in Step 4,
provides two settings, Automatic and Basic (Join is not used).
Use the Basic setting to:
■ Originate modem calls
■ Originate telephone calls while using the modem
When the GPA is connected to an analog multiline telephone and configured
using the Automatic setting, you can:
Answer calls (if this is the case, an Auto Answer All button must be
programmed so that calls can be answered automatically).
Make and receive calls on the telephone while using the modem, The
speakerphone must not be used.
Setting Up
To setup an analog voice and modem data station, follow the steps below:
1 If Using an external modem use an EIA-232-D cable to connect the
SERIAL potion the data terminal to the modem. If using an internal
modem, it should already be connected to the correct serial port.
If the data terminal has both COM1 and COM2 ports, make sure you use the
one designated for data transmission. See the customer’s system manager if
you are not sure.
Connecting Data Equipment 6-5