8
Figure 13. Maintenance page
The transmitter is supplied with the following default settings:
Table 1
. Default transmitter settings.
Parameter
Value
Attenuator
0 dB
Gain Control
AGC off
External Output voltage
Off
Firmware upgrade
It is possible to update the server firmware by uploading it to the optical transmitter using the device server software upload menu as shown below.
Figure 14. Firmware upgrade of transmitter server
Note
: The buttons are shown in different languages, depending on the actual Windows regional setting.
It is recommended to perform software upgrade by connecting the transmitter directly to PC.
SNMP and the Management Information Base
A Simple Network Management Protocol (SNMP) Management Information Base (MIB) is a hierarchically organized collection of information. MIB’s
consists of managed objects that are identified by object identifiers (OIDs). Some attributes in the MIB are fixed while others are dynamic values calculated
by the agent software running on the device.
Ethernet SNMP agent operates together with optical transmitter and provides remote diagnostics and control of the transmitter via Ethernet type network
using SNMP protocol.
The agent of transmitter can receive SNMP requests from a number of SNMP managers and can send traps to dedicated trap receiver.
The SNMP agent generates all alarms and events as SNMP traps (notifications) if parameters of the transmitter exceed limits and/or abnormal situations
occur. These traps will be sent to trap manager, identified by host IP address. The SNMP agent generates traps containing an object ID (OID) that uniquely
identifies the alarm. The traps also contain a date/time stamp that shows the date and time of the alarm.
The a network management system (NMS) can be implemented to enable a more sophisticated alarm management with alarm filtering, alarm
acknowledgement and automatic messaging through Emails or SMS etc.
The table 2 shows the notification type and the MIB object for each event notification.
