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Basic Configuration
5.8.1. RS232 Port Modes
The TSM/RSM offers four different serial port operation modes:
• Any-to-AnyMode: Allows communication between connected ports and permits
access to command mode. Any-to-Any Mode Ports can be connected to other
Any-to-Any, Passive, Buffer or Modem Mode Ports by invoking the /C command.
The Any-to-Any Mode is available to all ports (except the Internal Modem Port) and
is the default Port Mode for Port 1.
• PassiveMode: 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. Passive Mode is not available at Port 1, the Network
Port or the Internal Modem Port, and is the default mode at Ports 2 and above.
• BufferMode: Allows 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 Read Buffer (/R) Command. Furthermore,
Buffer Mode ports can also be configured to support the Syslog and SNMP Trap
features, discussed in Sections 12 and 13. The Buffer Mode is not available at
Port 1, the Network Port or the Internal Modem Port.
• ModemMode: Allows communication between connected ports, permits access
to command mode and simplifies connection to an external modem. Modem Mode
ports can perform all functions normally available in Any-to-Any Mode, but Modem
Mode also allows definition of a Hang-Up String, Reset String, and Initialization
String and other modem-related parameters. The Modem Mode is not available at
the Network Port and is the default mode for the Internal Modem Port (if present.)
• ModemPPPMode: Allows data that is normally sent via ethernet to be sent via
phone line. Modem PPP Mode ports can perform all functions normally available in
Any-to-Any Mode, but Modem PPP Mode also allows definition of a Hang-Up String,
Reset String, Initialization String, IP Address and other communication-related
parameters. The Modem PPP Mode is not available at the Network Port.
For more information on Port Modes, please refer to Section 9.1.
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