Polycom DOC2559A manual Connecting the RMX 4000 to -48DC Selv Power

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Polycom RMX 4000 Hardware Guide

Connecting the RMX 4000 to -48DC SELV Power

1On the DC Power Rail Modules (PRM’s), set the two circuit breakers to OFF. For more information on circuit breaker types, see "Types of DC Circuit Breakers installed on the RMX 4000” on page 1-20.

2Ensure that the cables from the Main that supplies electricity to the DC power units are OFF or disconnected.

3Remove the transparent plastic caps on the terminal block.

4Using the two wires of an 10 AWG cable running from the DC power distribution unit, connect the black wire into the -48 VDC terminal block and the red wire to the RTN terminal block.

•A 10 AWG cable must be used to connect the mains with the RMX 4000 DC Power Rail Module.

•The supply wires for DC version must be terminated using quick connectors.

•Extension cords may not be used.

ESD connector

Ground connector

Circuit breaker - ON position

RTN

	-48 VDC		Blank panel Circuit		breaker - OFF


				position
				position

The center PRM slot/module is fitted with a blank panel and the slot cannot be used on a system with DC Voltage.

1-19

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Contents Polycom RMX 4000 Hardware Guide USA Συμμορφωνεται Προσ ΤΙΣ Ουσιωδεισ Απαιτησεισ ΚΑΙ ΤΙΣ Regulatory Notices Table of Contents Component Replacement Hardware Description RMX 4000 Specifications Following table summarizes the different system capacities RMX 4000 System CapacitiesResource Type MPMx S MPMx D MPMx Resource CapacitiesMPM+ Resource Capacities Operating Mode Selection During Startup / Restart MCU Mode GuidelinesMPMx and MPM+ Modes Polycom RMX 4000 Hardware Guide Site Safety Requirements Safety RequirementsRack Mount Safety Precautions General Installation PrecautionsUnpacking the RMX Installing the RMXPolycom RMX 4000 Hardware Guide Standalone RMX 4000 Installation Installing the RMX in a Rack or as a StandaloneRack Mount Preparations Placing the RMX 4000 in a 19 Rack 2Installing chassis runners and RMX in a rack3RMX 4000 Rack Mount 4Removing and attaching 19 and 23 brackets Placing the RMX 4000 in a 23 Rack To reverse mount the RMX 4000 on a 19 rack Reverse Mounting the RMX 4000 in a RackConnecting the RMX 4000 to Power Sources Connecting the RMX 4000 to AC Power Connecting the RMX 4000 to -48DC Selv Power Types of DC Circuit Breakers installed on the RMX To connect the cables AC and DC systems RTM-IP Connecting Cables on the RMXFirst-time Power-up RMX 4000 Front Panel RMX 4000 ComponentsShows the front panel of an RMX 4000 DC system Component Description Component Description 9RMX 4000 AC Rear View RMX 4000 Rear Panel10RMX 4000 DC Rear View RTM-IPFollowing items appear on the RMX 4000 rear panel RTM Isdn ISDN/PSTN Clock Source RTM LANDC Power Rail Module AC Power Entry Module PEMComponent Slot Allocation RTM ISDN/RTM RMX 4000 Front Panel LEDs RMX 4000 LEDsCard removal Initiated The card Cntl 4000 Unit RTM-IP RMX 4000 Rear Panel LEDsRTM LAN RTM Isdn Hardware Description Component Replacement Component Replacement Handle Using the Modified PMC Compatible Ejector LeverReplacing the Cntl 4000 Module Replacing an AC Power Supply Module Replacing an AC Power Entry Module PEM Replacing a DC Power Rail Module PRM Component Replacement Carefully slide the Fan drawer out through the front panel Replacing the Fan DrawerInserting an Air Filter Optional in the Fan Drawer Removing the MPM+/MPMx Card from the MCU Replacing an Faulty MPM+/MPMx CardComponent Replacement Installing the Replacement MPM+/MPMx Card Replacing a RTM Isdn Card Installing an MPM+/MPMx Card on the RMXPRI Cables Replacing the RTM-IP Replacing the RTM LAN Replacing the Fabric Switch Module FSM Polycom RMX 4000 Hardware Guide