Comtech EF Data CDM-570A - Manual (Page 30)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Preface Revision 2
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• For 20 to 36 volt DC operation, use a T5.0A fuse if the modem has no BUC power supply.
• For 20 to 36 volt DC operation, use a T6.3A fuse if the modem is fitted with an internal BUC
power supply.
CDMR-570AL Reduced Chassis Depth -48V or -24V DC L-Band units: This unit is fitted with one
Type TR5 Slo-Blo fuse contained within a screw-in receptacle located to the left of the terminal
block.
• For 42 to 60 volt DC operation, use TR5 6.3A fuses if the modem has no BUC power supply.
Grounding
CAUTION – CORRECT GROUNDING PROTECTION IS REQUIRED TO PREVENT PERSONAL
INJURY AND EQUIPMENT DAMAGE.
THIS MODEM IS DESIGNED FOR CONNECTION TO A POWER SYSTEM THAT HAS
SEPARATE GROUND, LINE, AND NEUTRAL CONDUCTORS. THE EQUIPMENT IS NOT
DESIGNED FOR CONNECTION TO A POWER SYSTEM THAT HAS NO DIRECT CONNECTION
TO GROUND. IT IS THEREFORE IMPERATIVE DURING INSTALLATION, CONFIGURATION,
AND OPERATION THAT YOU PROPERLY GROUND THE MODEM USING THE GROUND
STUD PROVIDED ON THE MODEM REAR PANEL AND THAT THE MODEM IS ALWAYS
CONNECTED TO THE PROTECTIVE EARTH.
• IN FINLAND: "LAITE ON LIITETTÄVÄ SUOJAMAADOITUSKOSKETTIMILLA
VARUSTETTUUN PISTORASIAAN."
• IN NORWAY: “APPARATET MÅ TILKOPLES JORDET STIKKONTAKT.”
• IN SWEDEN: “APPARATEN SKALL ANSLUTAS TILL JORDAT UTTAG.”
Operating Environment
CAUTION – DO NOT OPERATE THE UNIT IN ANY OF THESE EXTREME OPERATING
CONDITIONS:
• AMBIENT TEMPERATURES LESS THAN 0°C (32°F) OR MORE THAN 50°C (122°F).
(MAXIMUM STORAGE TEMPERATURE ALLOWED IS -25°C (-13°F) TO 85°C
(185°F)).
• PRECIPITATION, CONDENSATION, OR HUMID ATMOSPHERES OF MORE THAN
95% RELATIVE HUMIDITY.
• UNPRESSURIZED ALTITUDES OF MORE THAN 2000 METRES (6561.7 FEET) ABOVE
MEAN SEA LEVEL (AMSL).