Quick Start Guide Flatpack S DC System ~ Document 370012.103, Issue 1.4, March 2016 3
Use Underwriters Laboratories (UL)-listed, two-hole lugs for all DC connections to prevent lug rotation and
inadvertent contact with other circuits. Terminal strip connections require only single-hole lugs. Wire rated for 90°C
is recommended for all DC connections. In practice, wires of a size larger than the minimum safe wire size are
selected for loop voltage drop considerations. Always follow NEC rules and local/company practices when
selecting wires and protection devices.
It is recommended practice to ensure that all circuit breakers (including those for DC distribution) are in the OFF
position during both installation and removal. Use of lock out/ tag out is recommended.
Eltek does not recommend shipping the power shelf with rectifiers installed. Rectifiers should be shipped in
separate boxes, as provided by Eltek. Rack mounting must be performed in accordance with instruction provided by
the manufacturer to avoid potential hazards.
Before installing the power system the following rack-mounted items should be considered:
•Attention: Observe precaution for handling electrostatic sensitive devices.
•Elevated Operating Ambient: If installed in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater than room ambient. Therefore, consideration should
be given to installing the equipment in an environment compatible with the maximum ambient temperature
(Tma) specified by the manufacturer.
•Reduced Air Flow: Installation of the equipment in a rack should be such that the amount of air flow required
for safe operation of the equipment is not compromised. Required airflow clearances: 30 mm (1.2")
minimum, both front and back.
•Mechanical Loading: Mounting of the equipment in the rack should be such that a hazardous condition is not
achieved due to uneven mechanical loading.
•Circuit Overloading: Consideration should be given to the connection of the equipment to the supply circuit
and the effect that overloading of the circuits might have on over-current protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
•Reliable Earthing: Reliable earthing of rack-mounted equipment should be maintained. Particular attention
should be given to supply connections other than direct connections to the branch circuit (e.g. use of power
strips).
NOTE: The power system complies with Part 15 of Federal Communications Commission (FCC) Rules. Its operation is
subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications to the system not expressly approved by the party responsible for the compliance could
void the user's authority to operate the system.
Lire et respecter tous les communiques de sécurité et exigences sur ces pages avant d’exécuter n’importe
installation ou utilisation de ce matériel d’énergie.
Défaut de se conformer aux exigences et déclarations contenu dans ce document peut résulter en blessure et/ou
dommage de matériel et pourrait annuler l’autorisation d’utiliser ce matériel.
Les guides d’utilisation complet sont disponibles en ligne a: eltek.sharefile.com
Pour utilisation dans des locaux a accès limité.
Propice pour montage sur béton ou autre surface non combustibles seulement..
AVERTISSEMENT: L’équipement doit être relié au réseau d’alimentation par du personnel qualifier conformément
avec les codes local et national (ex: CNE, ACNOR, etc.). Déférer au manuel d’installation pour les spécifications
entières.
BID 15-20: 700/800 MHz EDACS and P25 COMMUNICATIONS SYSTEM
