Sign Descriptions - Zte ZXA10 C300 Maintenance Manual

ZXA10 C300 Maintenance Manual
Safety Precautions for Laser
The laser receiver and transmitter is used in the optical transmission system and the related
test tools. The bared optical fiber or the connector port can transmit laser which is invisible
to the naked eyes. Looking at it without any protection may hurt eyes.
The eyes are not hurt if you gaze at the bared optical fiber tips or damaged optical fiber in
a distance of 150 mm. But the eyes may be hurt if you observe the bared optical fiber tip
with a microscope, a magnifier or a loupe.
The safety precautions for laser are as follows:
l
Only the authorized personnel with the corresponding training can perform the
operation.
l
Wear safety goggles while handling laser or optical fibers.
l
Make sure to switch off the optical source before disconnecting the optical fiber
connector.
l
Prohibit to gaze at the bare optical fiber or the connector tips before the optical source
is surely switched off.
l Measure the optical power in the optical fiber with an optical power meter to make
sure the optical source is switched off.
l
When opening the front door of the optical fiber transmission system, be careful to
avoid the laser radiation.
l
Prohibit to use optical instrument including the microscope, the magnifier or the loupe
to observe the optical fiber connector or the optical fiber tips.
Do as follows when handling the optical fibers:
l
Only the personnel with corresponding training can shear, fuse and splice the optical
fiber.
l
Make sure the optical fiber and optical source is disconnected before shear, fuse and
splice the optical fiver. After disconnecting the optical fiber, protect all the optical fiber
connectors with the optical fiber caps.
Safety Precautions for Plugging/ Unplugging Cards
The safety precautions for plugging/unplugging cards are as follows:
l Make sure that the card is compatible with the slot.
l Wear the antistatic wrist strip before operation.
l
Plug in the card along sliding rail. If the card is blocked, do not shake the card to
prevent any damage to the card.

1.2 Sign Descriptions

Table 1-1
safety precautions which they have to consider during the device installation, operation
and maintenance.
SJ-20130520164529-008|2013-06-30 (R1.0)
lists the safety signs used in this manual. These signs remind users of the
1-2
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