Kontron CG1200 Carrier Grade Server - Manual (Page 105)

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Kontron CG1200 Carrier Grade Server Installation and Maintenance Guide 99
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Rating: In the U.S. and Canada, cords must be UL (Underwriters Laboratories, Inc.) Listed/CSA
(Canadian Standards Organization) Certified type SJT, 18-3 AWG (American Wire Gauge). Outside
of the U.S. and Canada, cords must be flexible harmonized (<HAR>) or VDE (Verbena Deutscher
Electrotechniker, German Institute of Electrical Engineers) certified cord with 3x 0.75 mm conductors
rated 250 VAC.
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Connector, wall outlet end: Cords must be terminated in grounding-type male plug designed for use in
your region. The connector must have certification marks showing certification by an agency
acceptable in your region and for U.S. must be listed and rated for 125% of the overall current rating
of the server.
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Connector, server end: The connectors that plug into the AC receptacle on the server must be an
approved IEC (International Electrotechnical Commission) 320, sheet C13, type female
connector.
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Cord length and flexibility: Cords must be less than 4.5 meters (14.8 feet) long.
9.2.2 If DC power supplies are installed:
Connection with a DC (Direct Current) source should only be performed by trained service personnel. The
server with DC input is to be installed in a Restricted Access Location in accordance with articles 110-26
and 110-27 of the National Electric Code, ANSI/NFPA 70. The DC source must be electricallyisolated
from any hazardous AC source by double or reinforced insulation. The DC source must be capable of
providing up to 300 watts of continuous power per feed pair.
Mains DC power connect: Kontron recommends using all 4 pins on the DC input connector for
redundancy purposes.
The input connector on the DC power supply is a 4-pin Molex 55757-0420. This connector is rated at
16A/pin. An earth ground pin is not required because the system provides two earth ground studs on the
rear panel of the chassis. Figure 64, the input connector mechanical drawing and table, show the DC
input power connector and pin-out.
Figure 64. DC Power Supply Input Connector
Pin# Description
1 + RTN
2 + RTN
3 - –48V
4 - –48V
9.2.3 DC Power Supply 48V Input Power Mating Connector
The mating connector for the DC power supply module input connector, a Molex 54927-0420 4-pin
connector shown in Figure 65 provides a -48V input power connection to the system. The input wiring
connections are shown in the table in Figure 64.