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MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Connecting Data Equipment
Page 6-5
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
■ 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 set up an analog voice and modem data station, follow the steps
below:
!If using an external modem, use an EIA-232-D cable to connect the
SERIAL port on 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.