DDA-4320 & ZDA-4320RH Instruction Book
Revision 7
www.irtelectronics.com
Page 13 of 16
4320-DDA_ib_Rev7.doc
SNMP with IRT Products:
IRT Electronics currently employs SNMPv1 with its SNMP capable frames. The frame acts as an
agent
when fitted
with a CDM-xxxx module. This module has its own designated slot next to the power supply so as to not affect the
number of modules that the frame will take. Communication between the
NMS
, the frame and its loaded modules
are via this CDM-xxxx module. Note that the
NMS
software is third party and not supplied by IRT Electronics.
Ethernet connection for SNMP operation is via an RJ45 connector on the rear of the frame, below the mains inlet.
Ethernet rate runs at either 10 baseT or 100 baseT.
Frame parameters, such as Name, Address and Location, are set via an RS232 interface, a D9 connector on the rear
of the frame below the mains inlet. A software terminal emulator, such as Tera Term or HyperTerminal, is used for
setting and reading the parameters of the frame.
IRT modules that are SNMP compatible need a plug-in SMU-4000 module with a program relevant to the module
that it is plugged into. Depending on the module, besides the module identification, parameters such as alarm
states, inputs and controls etc. are communicated to the CDM-xxxx
agent
via a data bus on the rear of the frame.
Thus the CDM-xxxx collects information on what is loaded within the frame, what positions they occupy, and their
current status for communication to the
NMS
when the
NMS
sends a request for information.
In the event of a major alarm from any of the SNMP compatible modules, or power supplies, a
trap
is automatically
sent by the CDM-xxxx
agent
to the
NMS
without any prompting by the
NMS
. This alerts the operator to any fault
conditions that may exist that need immediate attention.
FRU-4000
FRAME
110/240 V 50/60 Hz
0.7 A (max.)
FUSES
110/120 Vac
1A S.B.
220/240 Vac
500 mA S.B.
AS3260 approval no.: CS6346N
Ass. no.: 804692
+
-
48Vdc
Alarm
RS232
Ethernet
IRT SNMP Connections
IRT modules fitted
with SMU-4000
PSU’s
CDM-xxxx
IRT SNMP Frame
IRT SNMP Frame
IRT modules fitted
with SMU-4000
PSU’s
CDM-xxxx
IP
Network
Ethernet Cable
Ethernet Cable
Ethernet Cable
NMS
IRT SNMP Setup