OPTICAL SYSTEMS DESIGN
DOC ID: 10100110
OSD136 OPERATOR MANUAL
Page 14 of 16
3.
MAINTENANCE
3.1
INTRODUCTION
The following section outlines the fault-finding procedure for the OSD136 modem. 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 sensitive and ESD precautions should be taken
when performing maintenance upon the unit.
3.2
EXTERNAL INSPECTION
Visually check for the following:
Check that the correct power source (OSD136PP) is connected to the power socket.
Check that the data signals are connected to the modem correctly and that the distant OSD136
modem has been terminated correctly to any external equipment.
Inspect the optical connectors for any contamination and clean using isopropyl alcohol and a lint
free tissue if any contamination is detected.
Check that any external termination resistors are connected if the system configuration requires
them in.
3.3
ROUTINE MAINTENANCE
There is no routine maintenance required with the OSD136.
