7310 Installation and User’s Guide
Front Chapter
1.5 Precautions
1.5.1 Personal Safety
WARNING
OPTICAL RADIATION
APPLYING POWER TO THE TRANSMITTER UNIT WILL
CREATE A LASER ENERGY SOURCE OPERATING IN CLASS I
AS DEFINED BY IEC 825-1. USE AN INFRARED VIEWER,
OPTICAL POWER METER OR FLUORESCENT SCREEN FOR
OPTICAL OUTPUT VERIFICATION.
AC POWER HAZARD
THE RACKMOUNT POWER SUPPLY LINE IS EMI FILTERED.
THE CHASSIS IS CONNECTED TO EARTH GROUND IN
COMPLIANCE WITH SAFETY REQUIREMENTS. ALWAYS USE
THE 3 PRONG AC PLUG WITH EARTH GROUND TO AVOID
POSSIBILITY OF ELECTRICAL SHOCK HAZARD TO
PERSONNEL.
1.5.2 Equipment Safety
To avoid damaging your product, please observe the following:
1. Fuses: The 7180M does not have fuses. If the unit fails, pull the
power supply out from the chassis and then push it back in.
2. The output of the receiver is AC coupled and can withstand the bias
from a satellite receiver.
Do not exceed 25V DC bias.
3. Do not allow any dirt or foreign material to get into the optical
connector bulkheads. This may cause damage to the polished optical
connector end faces.
4. The optical fiber jumper cable bend radius is 3 cm. Smaller radii
can cause excessive optical loss and/or fiber breakage.
5. If multiple transmitters are installed in the chassis allow sufficient
room for adequate ventilation; otherwise the units may overheat
causing possible safety hazard or equipment damage.
6. When several units are installed on one 7180M chassis, ensure that
the total current consumption (including any LNB bias) does not
exceed 6A per chassis.
Foxcom Proprietary Information
11
Document No. 93-005-39-A1
