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Hardware and Connectivity 35
Power Supply Specifications
highest voltage at some point, in which case the unit will switch to it. No power loss will
occur during a switch over.
DC Power Requirements
HV and DHV models:
The IOLAN can be powered via a DC source. The following are the ranges for the DC voltage
supported by the unit;
Minimum: 88 VDC Nominal: 125-250 VDC Maximum: 300 VDC
The DC supply(s) should have adequate over-current protection within the closed rack system
and comply with local or national standards applicable to the installation territory.
You need wire gauge 14 to 18AWG to connect the IOLAN rack mount unit to the power source.
LDC models:
The IOLAN can be powered via a DC source. The following are the ranges for the DC voltage
supported by the unit;
Minimum: 18 VDC Nominal: 24-60 VDC Maximum: 72 VDC
You need wire gauge 12 to 18AWG to connect the IOLAN rack mount unit to the power source.
AC Power Requirements
HV and DHV models;
The IOLAN can be powered via an AC source. The following are the ranges for the AC voltage
supported by the unit.
Minimum: 85 VAC Nominal: 100-240 VAC Maximum: 265 VAC
You need wire gauge 14 to 18AWG to connect the IOLAN rack mount unit to the power source.
TELCO-NEBS Models
LDC models:
The IOLAN can be powered via a DC source. The following are the ranges for the DC voltage
supported by the unit;
Minimum: 18 VDC Nominal: 24-60 VDC Maximum: 72 VDC
The Battery Return input terminals of the IOLAN can support either Isolated DC return (DC-I)
or Common DC return (DC-C).
You need wire gauge 12 to 18AWG to connect the IOLAN rack mount unit to the power source.
Note:
The equipment must be grounded for safety and to ensure ESD protection for correct
operation and protection of the internal circuitry.
Note:
The equipment must be grounded for safety and to ensure ESD protection for correct
operation and protection of the internal circuitry.