Dialogic IMG 1010 Bedienungsanleitung

IMG 1010 - Connecting DC Power

The DC input power module option can be used when either the AC power is not readily available or when the IMG is mounted in a rack utilizing

-48 volts. The DC option supports both domestic and international customers.

Docking Station

The DC docking station provides a DC power module with two -48 vDC input power terminals and two ON/OFF circuit breakers. Either a single

non-redundant power source or dual redundant power sources can be utilized.

Power Specifications

DC Voltage Operating Range

- 48 Volts Nominal / 2amps -40 - to -60 vDC

-48 Volt Connections

When connecting -48 Volts to the IMG use the table and diagram below

Parts Description

14 AWG Machine Tool Wire (MTW) Blue = -48 volts White = -48 volt return

DC Power Module Plugs Sangoma Supplied

Connect IMG 1010 to Ground

Before connecting DC power to the IMG 1010, the gnd should be connected to maintain signaling integrity and to prevent electrical shock. When

connecting the IMG 1010 to earth GND in the DC version, connect the ground lugs located at the rear of the unit to a solid GND location. Refer to

information below.

Remove the two-hole grounding lug at the rear of unit.

Crimp the grounding wire to the lug. Re-attach the grounding lug to the unit using the grounding screws. Grounding wire should be a #14-

#16 AWG machine tool wire.

Attach the other end of grounding wire to either a grounding point on the mounting rack or a building ground point.

Diagram

The figure below shows the IMG 1010 earth ground connection for the DC unit.

Single Power Source Connections

The DC Power Module displayed below is located at the rear of the docking station. Connect power as displayed in diagram below. Internally the

output of the DC power module connects to a panel-mounted connector via a cable assembly. This connector mates with a DC-to-DC 12 V DC

power supply connector on the tray.

DC Connections

Follow the steps below when connecting a single DC Power Source to the DC power module.

Ensure both circuit breakers on the DC power module are set to OFF (O).

Turn power OFF at power source.

Route the RET and -48V wires from the external power source to the DC power module plug. Secure the wires to the plug with screws.

Insert the plug into the DC power module and secure with screws.

Turn power ON at power source.

Press the required circuit breaker on DC power module to ON (I).

Warnings/Cautions

Failure to turn power OFF at the power source may result in electrical shock.

Ensure that the wires are pushed into the plug far enough, so that none of the copper is visible.

The DC power module plugs are polarity sensitive. The unit will not operate if the plugs are not wired correctly. See wiring diagram below.

A readily accessible disconnect device must be incorporated external to the equipment in the event the power needs to be removed from

this product.

Redundant Power Source Connections

A second power source can be added to the chassis for DC Power redundancy. The secondary source serves as backup to the primary source

(power supply). When a second power source is available, connect the primary and secondary power sources in a redundant fashion as

displayed in the diagram below.

DC Connections

Complete the following steps to connect a redundant power source to the chassis

Ensure both circuit breakers on the DC power module are set to OFF (O).

Turn power OFF at redundant power source.

Route the RET and -48V wires from the redundant power source to the DC power module plug. Secure the wires to the plug with screws.

The power module plugs are in a small plastic bag included in your shipment.

Insert the plug into the DC power module and secure with screws.

Turn power ON at redundant power source.

Press the required circuit breaker on the DC power module to ON (I).

Warnings/Cautions

Failure to turn power OFF at the redundant power source may result in electrical shock.

Ensure that the wires are pushed into the plug far enough, so that none of the copper is visible.

The DC power module plugs are polarity sensitive. The unit will not operate if the plugs are not wired correctly. See wiring diagram above.

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