Instruction manual

61200780L1-1C © 2004 ADTRAN, Inc. 215
ATLAS 800 Series System Manual Async-232 Option Module
Configuration
DTR Dial Number
This field is only active when outgoing calls are enabled and DIALOUT METHOD
is set to
DTR DIAL. If a phone number is entered here, it will be dialed when
DTR goes active.
Callout Protocol
Write security: 3; Read security: 5
This field determines what type or resource will be allocated and the data
protocol that will be used for an outgoing call attempt for the port. The
following selections are available:
Analog ModemAn outgoing call attempts to allocate a modem resource and
make an analog call. Asynchronous data is passed unmodified between the
Async-232 Module port and the allocated modem. The analog modem resource
is freed when the call is hung up.
ISDN PPP An outgoing call attempts to allocate an ISDN resource and make
a digital call. Both ends of the call must be using PPP as the
protocol to communicate across the link. The Async-232 Module
port performs PPP Async-to-Sync conversion between the
asynchronous DCE port and the synchronous ISDN link.
ADTRAN and other manufacturers use this conversion as the
standard method of transporting PPP frames available in ISDN
Terminal Adapters. The PPP Async-to-Sync protocol complies
with the Internet Engineering Task Force (IETF) RFC 1662. For
the ISDN call to be routed outside ATLAS 800 Series, a PRI or
BRI interface must be connected to the system and be correctly
configured
Out ISDN Call Type
Write security: 3; Read security: 5
When
CALLOUT PROTOCOL has been set to ISDN PPP, this field determines what
type of ISDN call will be made when a call is attempted. The value must match
the network services provisioned for the PRI or BRI interface that the call will
be carried on. This field is not present and ignored when the
CALLOUT
P
ROTOCOL is ANALOG MODEM.
Data 64K Directs the call control software to request an unrestricted
64 kbps circuit. The default call type for ISDN service is Data 64
kbps.
Data 56K Directs the call control software to request a 64 kbps data circuit
that is rate-adapted to 56 kbps. It is intended for use in
circumstances where interoperability with Switched 56 service is
desired.
Submenus Description (Continued)