The WS module is protected against power supply polarity reversal, provided an external fuse, max 1 A
(Fast) is being used. If this fuse is not used, polarity reversal can damage the unit. Do not connect the
housing to Ground externally. This will suspend the reverse voltage protection of the power supply.
W
Warning
Applying a reversed voltage in this case will destroy the supply circuits. Do not mount the housing of the
antenna to ground or this will create shortcut to ground for the housing.
IP 65 protection is only ensured if all connectors are plugged in.
•
Before exposing the device to dust and water, plug in all connectors.
•
Do not immerse the device in water or other liquids.
The maximum torque for fixing the enclosure screws is 1.5 Nm.
•
When opening/closing the enclosure, do not exceed this value.
•
The device can only be repaired by the manufacturer.
Welding
•
Should be done before the installation of the control system. If welding has to be done afterwards,
the electrical connections on the system must be disconnected from other equipment, the negative
cable must always be disconnected from the battery before disconnecting the positive cable, the
ground wire of the welder shall be positioned as close as possible to the place of the welding and the
cables on the welding unit shall never be placed near the electrical wires of the control system.
Operation without antennas can destroy the radio modem.
•
Do not operate the device without antennas.
•
To prevent misuse immediately inform your network operator in case of loss or theft of the SIM card
or the radio modem.
FCC notice
The devices covered in the manual may only be used in mobile or stationary systems in which under
normal operating conditions the separation distance between the antenna(s) and all persons is at least 20
cm (approx. 8 inches). The antenna(s) must further not be co-located or operated in conjunction with any
antenna or transmitter.
According to FCC requirements, the antenna gain, including cable loss, must not exceed the limits of 7.3
dBi in the 850 MHz Cellular band and 12.7 dBi in the PCS 1900 MHz band (WS devices) or 7.2 dBi in the
850 MHz cellular band and 3.5 dBi in the PCS 1900 MHz band respectively (WS devices).
Compliance of WS unit devices in all final product configurations is the responsibility of the integrator.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
Modifications not expressly approved by the manufacturer could void the user's authority to operate the
equipment under FCC rules.
Technical Information
WS 403 Remote Solution
Safety information
©
Danfoss | March 2016
L1426375 | BC00000241en-US0203 | 13