ADTRAN Express 3100, User Manual

Page: 35 / 128

Chapter 2. Setting Up the Express 3100
61200240L2-20 Express 3100 User Manual 2-11
Figure 2-5. POTS Interfaces
Connecting Your Primary Telephone
The Basic Rate ISDN line, required for using the Express 3100, in-
cludes two ISDN phone numbers (see also, Ordering a Basic Rate ISDN
Line on page 1-3). The Express 3100 allocates ISDN phone number 1 to
POTS port 1. Connect your primary telephone (the one you use to talk
to people) to POTS port 1 (see Figure 2-5).
Shared Port for Analog Devices
ISDN phone number 2 is shared by the EIA-232 port and the POTS
port 2; therefore, you cannot use both ports at the same time. For ex-
ample, you can’t use a FAX machine connected to POTS port 2 at the
same time you are using the Express 3100 for, say, Internet access.
ISDN data calls must be placed to ISDN phone number 2, so
provide this number as your FAX number, etc.