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Chapter 1 - Introduction HCD-E1
Installation & Operation Manual
1-8 Functional Description 01/01/01 08:07
The remote management capabilities available through the serial RS-232
port are as follows:
•
Management by means of a Supervision Terminal
•
Management by means of Telnet
•
SNMP Management.
If you have an H-RPT on your link, you can use either SP or Telnet
management to display the status messages of H-RPT and, if your
application allows this, connect/disconnect the H-RPT loop (from the unit
configured as central). For the description of the H-RPT loop and how to
operate it, refer to Section 5.4, Diagnostic Tests in Chapter 5.
Management by means of a Supervision Terminal. Any “dumb” ASCII
terminal connected to the CONTROL DCE port of HCD-E1 (or a PC running
a terminal emulation program), controlled by the program stored in HCD-
E1, can be used as a supervision terminal.
The supervision terminal can communicate with HCD-E1 using either
point-to-point or polled (multidrop) communication. For polling purposes,
each HCD-E1 can be assigned an eight-bit address, for a maximum of
255 nodes (the zero address is reserved).
As an option, you can connect a dial-up modem to the control port, to
provide call-in capabilities.
In addition to the remote management functions listed above, the
supervision terminal is also used for the preliminary configuration of
HCD-E1, to enable the use of IP communication for Telnet and SNMP
management.
Management by means of Telnet. HCD-E1 also supports the Telnet
protocol, which enables remote management using the same command line
interface available with a supervision terminal. Telnet uses TCP/IP
communication through the RS-232 port of HCD-E1.
SNMP Management. The SNMP management capability enables fully
graphical, user-friendly management using the RADview network
management stations offered by RAD, as well as management by other
SNMP-based management systems.
Inband and Out-of-Band Management
HCD-E1 includes a proprietary IP router for in-band management traffic.
This function enables HCD-E1 to transfer in-band IP and SNMP
management messages generated by or addressed to other HCD-E1 units,
and also transfer in-band management traffic addressed to other RAD
equipment that operates over E1 links, such as MEGAPLEX-2100,
DXC-30/DXC-10A/DXC-8R, etc.