Siemens SINAUT MD741-1 System Manual page 22

2 Setup
WARNING
!
When the antenna is installed outdoors it must be earthed for lightning protection.
The outdoor antennas shield must be reliable connective to protective earth. The
installation shall be done according the national installation codes (For US this is
the National Electric Code NFPA 70, article 810).
This work must be carried out by qualified personnel only.
Screw terminals for power supply
Power supply
Figure 2-2
The SINAUT MD741-1 operates with direct current of from DC 12-30 V, nominally
DC 24 V. This power supply is connected at the screw terminals on the left-hand
side of the device.
Connect the positive supply voltage to one or both screw terminals marked 24V
and the negative supply voltage to one or both screw terminals marked 0V.
The rated current consumption is about 510 mA at 12 V and 230 mA at 30 V.
Warning:
The power supply unit of the SINAUT MD741-1 is not electrically isolated. Observe
the safety instructions at the beginning of this manual.
22
Screw terminals
SINAUT MD741-1
C79000-G8976-C236-05