User`s guide

5.5.2. Port Modes
The APS offers four different port operation modes; Any-to-Any
Mode, Passive Mode, Buffer Mode, and Modem Mode. The Port
Modes function as follows:
·
Any-to-Any Mode: Allows communication between
connected ports. Any-to-Any Mode Ports can be connected
to other Any-to-Any Mode, Passive Mode, Buffer Mode, or
Modem Mode Ports by accessing Command Mode and
invoking the /C command (see Section 8.1.1). The
Any-to-Any Mode is available to all APS ports, except
Port 8 (the External Modem Port).
·
Passive Mode: Allows communication between connected
ports, but does not allow access to Command Mode. Passive
Mode Ports can be connected by accessing Command Mode
from a free Any-to-Any or Modem Mode port and invoking
the /C command (see Section 8.1.1). The Passive Mode is
not available to Ports 1, 2, or 8.
·
Buffer Mode: Allows collection and storage of data
received from connected devices. Collected data can be
retrieved by accessing Command Mode from a free Any-to-
Any or Modem Mode Port, and issuing the Connect (/C)
Command. Note that the Buffer Mode also allows pass-
through communication with the connected device. The
Buffer Mode is not available to Ports 1, 2, or 8.
·
Modem Mode: A port configured for the Modem Mode can
perform all functions normally available in Any-to-Any
Mode, but the Modem Mode also allows definition of a
Hang-Up String, Reset String, and Initialization String. Any
APS RS232 port can be configured for the Modem Mode,
and Port 8 (the External Modem port) is always configured
for Modem Mode.
For more information on Port Modes, please refer to Section 8.
5-7
Configuration