Unit installation
Installation and Operation Manual Chapter 1 Introduction
FCD-E1 Functional Description 1-23
Supervision Terminal Capabilities
The supervision terminal provides a simple, command line based human interface.
The terminals can communicate with the managed FCD-E1 systems via the
CONTROL DCE serial RS-232 communication ports.
The serial port is generally configured as a DCE port, for direct connection to a
terminal, but can also operate as a DTE port when it is necessary to connect the
terminal via a modem link, or a low-speed data multiplexer channel. Thus, a
remote operator located at a central site can perform all the functions available
from a supervision terminal directly connected to the FCD-E1 system. Optional
password protection is also available.
The communication data rate of the serial port can be selected in accordance with
system requirements (300, 1200, 2400, 4800, 9600, or 19200 bps). Automatic data
rate identification (autobaud function) is also available. Data word format is
configurable (one start bit, seven or eight data bits, selectable parity (odd, even, or
none), and one stop bit).
Since continuous communication with the FCD-E1 system is necessary only when
management activities are actually performed, one terminal can manage multiple
FCD-E1 units using a polling protocol, with the connection to the individual units
being made by means of multi-drop modems or digital sharing devices. For polling
purposes, each FCD-E1 can be assigned an eight-bit address, for a maximum of
255 nodes (the zero address is reserved for non-polled communication).
SNMP Management Capabilities
The FCD-E1 system includes an SNMP agent that can communicate out-of-band
and/or inband through the dedicated management router of the FCD-E1 system. To
permit SNMP management, the SNMP agent must be configured and enabled by the
user. Appendix B provides information on the required parameters.
A basic management topology is shown in Figure 1-7. In this example, a network
management station is attached to an Ethernet LAN. A remote access LAN
extender, MBE-RAS/A, is located near the managed equipment (e.g., FCD-E1,
MEGAPLEX-2100(*), etc.), and its serial ports are connected via cables to the serial
port of the FCD-E1 CONTROL DCE connector using the SLIP protocol.
The MBE-RAS extender can connect up to 8 FCD-E1 devices to one management
system.
Serial Ports
MBE/RAS/A
LAN
. . . .
To CONTROL
Connectors of
Managed Equipment
Figure 1-7. Basic Management Topology Using Network Management Station Attached to LAN