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Fuses, Environmental, Installation – Comtech EF Data CDM-600/600L User Manual

Page 23

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CDM-600/600L Open Network Satellite Modem

Revision 3

Preface

MN/CDM600L.IOM

xvii

Fuses

The AC-powered CDM-600/600L is fitted with two fuses – one each for line and neutral
connections. These are contained within the body of the IEC power inlet connector, behind a small
plastic flap.

For the CDM-600:

• For 115 VAC operation, use T1.25A, slow-blow 20mm fuses.
• For 230 VAC operation, use T0.75A, slow-blow 20mm fuses.

For the CDM-600L:

• For 115 and 230 VAC operation, use T5.0A, slow-blow 20 mm fuses (P/N FS/5ASB-IEC).

The DC-powered CDM-600L is fitted with two fuses – one each for positive and negative
connections. These are contained within the body of the power inlet, behind a small plastic flap.

• For 38 to 60 VDC operation if the modem has no BUC power supply, use T3.15A,

slow-blow 20mm fuses

• For 38 to 60 VDC operation if the modem is fitted with internal BUC power supply,

use T8.0A, slow-blow 20mm fuses.

CAUTION

FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
THE CORRECT TYPE AND RATING.

Environmental

The CDM-600/600L must not be operated in an environment where the unit is exposed to
extremes of temperature outside the ambient range 0 to 50°C (32° to 122°F), precipitation,
condensation, or humid atmospheres above 95% RH, altitudes (non-pressurized) greater than
2000 meters, excessive dust or vibration, flammable gases, corrosive or explosive atmospheres.

Operation in vehicles or other transportable installations that are equipped to provide a stable
environment is permitted. If such vehicles do not provide a stable environment, safety of the
equipment to EN60950 may not be guaranteed.

Installation

CDM-600/600L AC Modem Installation: The installation and connection to the line supply
must be made in compliance to local or national wiring codes and regulations.

The CDM-600/600L 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.

The CDM-600/600L is shipped with a line inlet cable suitable for use in the country of operation.
If it is necessary to replace this cable, ensure the replacement has an equivalent specification.
Examples of acceptable ratings for the cable include HAR, BASEC and HOXXX-X. Examples of