Elastic Networks ELMo 120 Especificaciones descargar pdf (Pagina 22)

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ELMo 120 Multiplexer installation and testin

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

Task:

Connecting power to the ELMo 120 Multiplexer

modem shelf

Use this procedure to install the power feeds from a -48 V dc power source to

the ELMo 120 Multiplexer modem shelf.

Note:

The voiceband filter shelf does not require a power feed.

Requirements

This procedure requires the following:

• volt-ohm meter

• ELMo 120 Multiplexer power harness

• -48 V dc power fuse bay or dc rectifier

Power supply and wiring specifications are described in Appendix A.

Action

Step Action

Eject all cards (Power, Switch, and Modems) from the backplane of the shelf.

Ensure that the cards completely dislod

e from their backplane connectors.

Route and connect a

round wire from the buildin

’s

roundin

facility to the

round stud on the shelf side-flan

e. See Appendix A, “Groundin

environment specifications” on pa

e A-3 for ELMo 120 Multiplexer

roundin

requirements.

—continued—

CAUTION

Serious equipment damage

Never connect untested power to the ELMo 120 with any circuit

packs installed. If the power feed polarities happen to be

reversed, the ELMo 120 shelf and rectifier could be seriously

dama

ed.

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Elastic Networks ELMo 120 Especificaciones Pagina 22