Download NetCom Specifications - Mitsubishi Electric Power Products, Inc.

SPECIFICATION
For the
NetCom
This specification is liable to change at any time. Please check with
Mitsubishi Electric that your copy is up to date
NetCom Specification (08/01/02)
Copyright © 2002 by Mitsubishi Electric
Page 1
1.
OVERVIEW
This document describes Mitsubishi Electric’s NetCom SNMP adapter
that is compatible with all of Mitsubishi Electric’s UPS systems.
The NetCom is an Ethernet-compatible network interface device that
can be supplied as a internally mounted device, or as a separate unit
in its own enclosure. The NetCom supports both the Mitsubishi and SEC
protocols and the product is compatible with a variety of UPS devices
to provide RS-232 to SNMP gateway capability as well as http web
browser support.
The NetCom can be attached to a UPS or other device to allow a
network supervisor to monitor and control the UPS via the SNMP
protocol (Simple Network management protocol) over TCP/IP networks.
The product can be view under such popular network management
platforms as HP OpenView, IBM NetView/6000, Novell ManageWise (Novell
NMS), SunNet Manager, etc.
The NetCom has a 10BASE-T Ethernet interface built in. There is one
RS-232 serial port.
During installation, this serial port is
connected to a computer or server to assign and configuration
settings of the NetCom.
During normal operation, the RS232 is
connected to a UPS (or other serial device)for monitoring and
control. NetCom monitors the serial line for a particular character
string in order to switch in and out of configuration mode.
Four LED indicators show the status of the SNMP Adapter, green for
power and RS232, network link status, red for an error condition
within the SNMP Adapter itself.
1.1
How the NetCom SNMP Adapter Works
The NetCom SNMP Adapter brings UPS and other serial devices within
the range of SNMP management.
The SNMP Network Management Station
can request information about the device or send commands to the
device through the link provided by the NetCom.
The NetCom also sends “trap” messages to the management station
regarding system conditions of the UPS system and the device in which
it is installed. Traps may be filtered according to urgency level.
The NetCom MIB (Management Information Base) is provided on a
diskette for easy loading to a SNMP compliant management station,
such as HP OpenView, IBM NetView/6000, etc. Objects in the MIB can
be easily managed by these management stations.
2.
DESCRIPTION
The NetCom is a single board device with microprocessor, network
interface hardware, voltage regulator, flash EPROM memory, RAM, a
single serial port, analogue port and limited I/O.
NetCom Specification (08/01/02)
Copyright © 2002 by Mitsubishi Electric
Page 2
2.1
Dimensions
Layout and dimensions for the NetCom are shown in Figure 1.
Port 1
D9 RS232
Power
LED
RS232
LED
Network
LED
Fault
LED
Figure 1
5VDC Power
Connector
90mm
41.25mm
10 Base T
Connector
DIP switch
(unused)
Port 2
D9 Temp/Humidity
2.2
148.60 mm
System Requirements
The NetCom requires the following network configuration:
»
»
»
»
2.3
An Ethernet networking environment
An SNMP-based management station, such as:
-HP OpenView
-IBM NetView/6000
-SUN SunNet Manager
-Netware Management System
A PC with a terminal emulation package or a dumb
terminal, for configuring the NetCom.
Alternatively a PC with a browser installed such as
Internet Explorer can be used for configuration across
the web.
Hardware Interface Requirements
The NetCom
TH requires power and communications signals from the
device in which it is installed. The following definition applies to
the D9 port 1 used for RS232 communications indicated in Figure 1:
Pin #
1
2
3
4
5
6
7
8
9
Name
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
Description
Data Carrier Detect
Receive.
Transmit.
Data Terminal Ready
Ground
Data Set Ready
Request To Send
Clear To Send
Ring Indicator
NetCom Specification (08/01/02)
Copyright © 2002 by Mitsubishi Electric
Page 3
The following definition applies to the D9 port
temp/humidity communications indicated in Figure 1:
Pin #
1
2
3
4
5
6
7
8
9
Name
DCD
RXD
TXD
DTR
GND
VCC +5v
Analogue In
GND
Analogue In
Note
NetCom does not
communications.
use
TTL
2
used
for
Description
Data Carrier Detect
Receive.
Transmit.
Data Terminal Ready
Ground
5 volt drive for Analogue input
Temperature Input
Ground
Humidity Input
level
signaling
(0v
-
+5v) for outside
2.3.1 General
CPU
ROM
RAM
Network controller
Input Voltage
Normal power usage
Maximum power usage
Input Protection
Operating temperature
Operating humidity
Storage temperature
storage humidity
3.
Intel 386
512 K RAM arranged 256k by 16
512 K RAM arranged 256k by 16
NE 2000 compatible
+5 volt direct current
300 mA
400 mA
Polyfuse
0 ~ 40°c
5 ~ 90%
-10 ~ 70°c
5 ~ 100%
Configuration
The NetCom must be
Management Software.
3.1
configured
prior
to
use
with
your
Network
NetCom Network Interface Settings
3.1.1 10BaseT Connectors
The NetCom network interface is for use on 10BaseT ethernet.
3.1.2 Configuration Session
For configuration, the adapter is temporarily connected to a PC with
a terminal emulation package, or to a dumb terminal. Configuration
settings are made through the terminal, and stored in NVRAM in the
NetCom.
After configuration, the NetCom is disconnected from the PC (or dumb
terminal) and connected to the UPS and to the network.
Thereafter, configuration settings may be adjusted at any time via
web browser.
NetCom Specification (08/01/02)
Copyright © 2002 by Mitsubishi Electric
Page 4
4.
Management Information Base
The NetCom comes with a standard Management Information Base (MIB)
diskette that defines the SNMP variables available to the Network
Administrator.
This MIB varies from device to device. The NetCom
SNMP Adapter solution brings UPS and other devices systems within the
range of SNMP management through these three basic components:
4.1
NetCom Adapter
This is the physical box, with connectors for linking to the UPS, the
Ethernet network, and the power adapter. Inside the NetCom runs the
NetCom SNMP Adapter Program, described next.
4.2
NetCom Adapter Program
The NetCom SNMP Adapter Program runs inside the NetCom SNMP Adapter.
It responds to standard SNMP commands to report on UPS configuration
and conditions.
The NetCom SNMP Adapter will send traps at preset
severity levels to specified SNMP management stations.
4.3
The NetCom SNMP MIB
This is the MIB (Management Information Base) that
each SNMP management station that will monitor the
NetCom SNMP Adapters.
The MIB determines what
parameters can be monitored and controlled through
"set" commands.
is loaded onto
UPSs served by
UPS or device
SNMP "get" and
The MIB definition is contained on two floppy disks. The first is in
DOS format for use with an IBM PC or compatible running MS-DOS or
OS/2.
The second disk contains the MIB in tar format for Unix
platforms.
5. APPROVALS
CE Approval -
The NetCom has class A CE Approval
NOTES ON TEXT
Please note that the NetCom adapter has been principally designed for use
with an UPS, however it can be used with any serial device such as an Air
Conditioning unit.
NetCom Specification (08/01/02)
Copyright © 2002 by Mitsubishi Electric
Page 5