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General
The product MODEM MD720 complies with European standard EN60950-1 Safety of
Information Technology Equipment.
Read the installation instructions carefully before using the device.
Keep the device away from children, especially small children.
The device must not be installed or operated outdoors or at damp locations.
Do not operate the device if the connecting leads or the device itself are damaged.
External power supply
Use only an external power supply which also complies with EN60950-1. The output
voltage of the external power supply must not exceed 30VDC. The output of the
external power supply must be short-circuit proof.
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Warning
The power supply unit to supply the MODEM MD720 must comply with NEC Class 2
circuits as outlined in the National Electrical Code (ANSI/NFPA 70) only.
When connecting to a battery or accumulator, make sure that an all-pole circuit-
breaker (main battery switch) with sufficient selectivity and a fuse with sufficient
selectivity (e.g 32 V, 3A) are provided between the device and the battery or
accumulator.
Please pay regard to section
of the system manual, as well as the
installation and utilization regulations of the respective manufacturers of the power
supply, the battery or the accumulator.
Handling cables
Never pull a cable connector out of a socket by its cable, but pull on the connector
itself. Cable connectors with screw fasteners (D-Sub) must always be screwed on
tightly. Do not lay the cable over sharp corners and edges without edge protection. If
necessary, provide sufficient strain relief for the cables.
For safety reasons, make sure that the bending radius of the cables is observed.
Failure to observe the bending radius of the antenna cable results in the deterioration
of the system's transmission and reception properties. The minimum bending radius
static must not fall below 5 times the cable diameter and dynamic below 15 times the
cable diameter.
