4 MAINTENANCE
4.1 INTRODUCTION
The following section outlines the fault-finding procedure for the OSD2254EP modems.
Please take note of the following:
▲ Personnel without appropriate training should not attempt any maintenance except that
outlined below.
▲ If further maintenance is attempted you are warned that every care should be taken to
ensure that internal measurements made while the equipment is operational are taken
carefully as some components within the unit are expensive and may be damaged by
failure of any portion of their support circuitry.
▲ Some components within the unit are Electrostatic (ES) sensitive and Electrostatic
Discharge (ESD) precautions should be taken when performing maintenance upon the
unit.
4.2 EXTERNAL INSPECTION
Visually check for the following:
▲ Check that the correct power source is connected to the power socket.
▲ Check that the Ethernet cables are connected to the modem correctly and that the distant
OSD2254EP modem has been connected correctly to any external equipment.
▲ Inspect the optical connectors (for fiber SFP option) for any contamination and clean
using isopropyl alcohol and a lint free tissue if any contamination is detected.
4.3 ROUTINE MAINTENANCE
▲ There is no routine maintenance required with the OSD2254EP.
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