Polnet ACP
SYSTEM CUSTOMIZATION
The ACP PolNet System can be easily tailored to fit the needs of individual
organizations or departments. An unlimited number of remote site information
systems can be accessed, and with its register programs, the system functions can
be configured to meet the specifications of both calling and receiving modems and
long distance switching time. By utilizing programmable security codes (up to 7
digits), 35 million possible combinations of codes prevent unauthorized access to the
data devices.
ACP GENERAL OPERATION
The ACP's routing decision is based on tone detection. When a call is placed to the remote location, the ACP detects the phone
company's ringing voltage, goes off hook (answers) and begins a preliminary screening process. During this time, the ACP is
looking for tone based routing instructions. For instance, if the ACP hears the industry standard CNG tone generated by a calling
Fax, the call is immediately and automatically routed to the connected fax machine without disturbing the receiving party, ringing
attached phones or ringing other attached devices.
Each device port of the ACP has its own DTMF security code that can be used to protect any devices connected to the ports
from unauthorized access. Each separate security code can be programmed to any number up to 7 digits, including the * and #
characters found on the telephone keypad. During an incoming call, the ACP detects the DTMF access code for a device port,
the call is automatically routed to the correct device.
In the absence of any distinguishing tones or security codes, the ACP begins to ring the call through to the default port
(device port #1).
Outgoing calls can be placed from any device port as if it were attached to a dedicated line. Only one device at a time can
actively use the telephone line. When the line is in use by one device, other devices attempting to access the line for an outgoing
call will receive a busy signal. With special programming, this feature can be overridden in an emergency situation where an
outgoing call must be placed quickly.
