User's Manual

Site Requirements 90DIB500R41SR_FCC02 – 99.1 35
DIB-500 R4.1 Requirements concerning the electrical system
Voltage supply
The terminals of the voltage supply connection are adequate for voltage supply cables
up to a cable cross section of max. 10 mm
2
.
The length and cross-section of the voltage supply cable
For the specification of the voltage supply cable, the length and the cross-section must
always be taken into consideration. Always ensure that the required voltage is applied
to the equipment cabinet.
Standards and Guidelines
The requirements to the power supply of telecommunications equipment with direct cur-
rent (DC) can be found in ETSI EN 300 132-2 V2.1.2.
5.2.1.3 Fuse protection (V
DC
)
Each equipment rack (apart from the equipment rack(s) of the cavity variant) of the
DIB-500 R4.1 features a connection panel, via which the integrated components are
supplied with voltage and grounded.
Insufficient fuse protection of the power supply may impair the operation of the product.
The construction of automatic circuit breakers depends on the characteristics of the
required voltage supply cable (power consumption, refer to section 5.2.1.2 on page 34)
as well as the length of cable.
Standards and Guidelines
Required measures for the construction of automatic circuit breaker can be found in
IEC 60950-1, Information technology equipment – Safety, part 1: General Require-
ments.
Table 5.5 Requirements and cable specifications for the voltage supply cable (V
DC
)
Number of carriers12345678
Power consumption
1)
350 W 550 W 900 W 1,100 W 1,450 W 1,650 W 2,000 W 2,200 W
Recommended length,
voltage supply cable
2.5 m
2)
2.5 m
2
Recommended cross-
section, voltage supply
cable
4mm
2
4mm
2
1) with V
DC
voltage supply with an output rating of 50 W per carrier, with V
AC
voltage supply (optional) the power
consumption is increased by the factor 1.1.
2) The use of longer voltage supply cables may cause malfunctions.