IRT Communications DMM-4880, Instruction Manual

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DMM ‐ 4880 & DMX ‐ 4880 Instruction Book Revision 0
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DMM ‐ 4880 & DMX ‐ 4880 SNMP Functions:
With the DMM
‐ 4880/DMX ‐ 4880 installed in an IRT frame with SNMP capability, the following SNMP functions are
capable of being monitored and controlled by a Network Management System (NMS).
DMM ‐ 4880:
An indication of the current state of the Urgent and Non Urgent alarms
[noAlarms
(1)],
[UrgentAlarms (2) – Not applicable],
[nonUrgentAlarms (3) – no valid STM ‐ 1 input on any channel];
Information about each channel:
Channel number,
An indication that the channel input signal is present
5
[notPresent (1), present (2)],
A 15 byte maximum Alias (name) for the channel can be read and set;
Trap automatically sent, if enabled, upon loss or restoration of an input signal
[notEnabled (1), enabled (2)];
The firmware version of the main FPGA in the format ‘x.y’, where x is the major rev. no. and y the minor:
The software version of the processor in the format ‘x.y’, where x is the major rev. no. and y the minor:
Unit reset control
‐ resets system up time counter. A set with a value of 2 sent to this OID will cause a
system reset to occur. When queried returns a Null (0).
NOTE:
5 When an STM ‐ 1 input is not present on a channel of the DMM ‐ 4880 the resultant STM ‐ 4 signal
contains an AIS (Alarm Indication Signal) in the channel’s allocated space. AIS is defined as being all 1’s
within the stream.
DMX
‐ 48800:
An indication of the current state of the Urgent and Non Urgent alarms
[noAlarms
(1)],
[UrgentAlarms (2) – no, or invalid, STM ‐ 4 input signal present],
[nonUrgentAlarms (3) – no valid STM ‐ 1 signals encoded on any channel. All STM ‐ 1 signals are AIS];
An indication of the signal status of the STM ‐ 4 input {notpresent (1), present (2)];
Information about each channel:
Channel number,
An indication that the channel input signal is present
6
[AIS (1), present (2)],
A 15 byte maximum Alias (name) for the channel can be read and set;
An indication that either all encoded STM ‐ 1 signals are AIS, or at least one is an active STM ‐ 1
[normal (1) – at least one STM ‐ 1 signal is active, allInputAIS (2) – all STM ‐ 1 signals are AIS
7
]
Trap automatically sent, if enabled, upon loss or restoration of the STM ‐ 4 input signal
[notEnabled (1), enabled (2)];
Trap automatically sent, if enabled, upon detection or not detection of all AIS STM ‐ 1 input signals
[notEnabled (1), enabled (2)];
The firmware version of the main FPGA in the format ‘x.y’, where x is the major rev. no. and y the minor:
The software version of the processor in the format ‘x.y’, where x is the major rev. no. and y the minor:
Unit reset control
‐ resets system up time counter. A set with a value of 2 sent to this OID will cause a
system reset to occur. When queried returns a Null (0).
NOTE: 6 When an STM ‐ 1 input is not present on a channel of the DMM ‐ 4880 the resultant STM ‐ 4 signal
contains an AIS (Alarm Indication Signal) in the channel’s allocated space. AIS is defined as being all 1’s
within the stream. The resultant channel’s STM
‐ 1 output will be an AIS.
7
No STM ‐ 1 signals present on all DMM ‐ 4880 inputs,
IRT
Communications
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