Specifications

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