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TeleBoss 830 2.11.370 STD User Manual
Page 7
DC Power Card Wiring Instructions
This section describes the connection to the 30 watt DC power card, which supports either 24VDC or
-48VDC power options, and features a Phoenix terminal block with screw clamp connectors.
Wiring connections to DC power can be made using customer supplied wiring, or one of the two optional
wiring kits that may be purchased with the unit.
This unit should be assembled and installed by a qualified technician who can ensure the power source is an
isolated, SELV (Safety Extra Low Voltage) circuit for -48VDC installations. The 24VDC option does require an
isolated circuit.
Note:
The DC input should be protected by an external 2A DC rated slow Blow Fuse suitable for
branch circuit protection, at the power supply or within the building circuitry. The input DC power
current limiting fuse circuit is provided for by the end user, and is required for unit operation in
compliance with safety agency approvals.
The DC power supply option has 4 input connections. This gives the user the ability to connect this unit to a
primary and an auxiliary DC power source.
Caution:
DANGER! FIRE HAZARD! DO NOT LEAVE AN UNCONNECTED WIRE EXPOSED! DO
NOT CONNECT THE UNIT TO ANY OTHER EQUIPMENT UNTIL YOU KNOW THE UNIT POWERS
UP CORRECTLY!
Attention
:
DANGER! RISQUE D'INCENDIE! NE PAS LAISSEZ PAS TRAINER LES FILS NON
CONNECTES! NE CONNECTER L'APPAREIL A TOUT AUTRE EQUIPEMENT QU'APRES AVOIR
VERIFIE QUE SON ALIMENTATION ELECTRIQUE FONCTIONNE CORRECTEMENT!
Asentria TeleBoss products purchased with the DC power option can also be purchased with one of two
optional wiring kits, 5006-026 or 5006-025. Optionally, customer supplied cabling can be used. Wiring
connection instructions for -48VDC and 24VDC are outlined below.
Connection to DC Power
Run two sets of wire to the TeleBoss power input. For A/B redundant systems one circuit should be feed from
the A plant distribution, and one circuit from the B plant distribution. If A/B redundant power feeds are not
required ignore all instructions for B side power feeds.
Ensure the rack that the unit is mounted in is properly grounded. Measure the resistance between the rack
and building steel, aisle ground, or other properly grounded locations. The resistance should be <1 ohm. If this
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