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Appendix A - ELMo 120 Multiplexer installation requirements

A-3

Revision 2.01 ELMo 120 Multiplexer Installation and Maintenance Guide 08-01023-01

Power specifications

Table A-1 shows the power specifications for the ELMo 120 Multiplexer shelf.

Grounding environment specifications

The grounding environnment for the bay containing the ELMo 120

Multiplexer shelf must meet local electrical codes and Integrated Building

Distribution Network (IBDN) standards. The grounding environment for the

ELMo 120 Multiplexer shelf and its supporting bay can be either a Common

Bonding Network (CBN) or an Isolated Bonding Network (IBN) environment.

Either of these environments may use a 1/0 AWG ground collector.

The following sections offer guidelines for each of these environments, with

and without ground collectors. See local electrical codes or the appropriate

IBDN standards for more information.

Table A-1

ELMo 120 power specifications

Power Specification ELMo 120 Multiplexer value

Supply -48 V dc (nominal)

-46 to -56 V dc (required)

Conversion and distribution 12 V dc

5.0 V dc

3.3 V dc

2.5V dc

-5 V dc

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 71 72

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Elastic Networks ELMo 120 Spécifications Page 53