46 List of Figures
WAGO I/O System 750
750-940 EnOcean RS-485 Gateway; 868 MHz
Manual
Version 1.3.0, valid from FW/HW Version 01/01
9.
Set the enclosure cover with the printed circuit board onto the enclosure
bottom of the EnOcean Gateway and close it by turning gently to the left.
DIN-rail mounting is also possible when the Gateway is closed.
As an alternative, the EnOcean Gateway can be completely prepared before
mounting and then mounted to a DIN-rail when closed.
5.5
External Antenna Connection
To increase radio range, an external antenna can be connected to the EnOcean
Gateway.
Switching between internal and external antennas is selected with a DIP switch;
see Section “Operating Elements”.
Only use the Magnetic-Mount Antennas from WAGO.
Only use the WAGO Magnetic-Mount Antenna GSM 850/2100 (Art. No.:
758-911) as external antenna for the EnOcean Gateway.
The technical properties and compliance with the EMC and R&TTE Directives
are only ensured when these antennas are used.
5.5.1
Installation Information
Observe the following notes for install an external antenna (not included in scope
of delivery):
•
The antenna must be mounted on a plate measuring at least 25 × 25 cm
(10 × 10 in.).
•
The antenna and the antenna line must be at least 30 cm (12 in.) away
from interference sources.
There must be a free space of at least 35 cm (13.75 in.) between the
antenna and the closest wall.
•
The antenna cable must not, under any circumstances, be bent sharply,
since irreversible damage may result to the antenna line (RG174 bending
radius > 15 mm / 0.59 in.).
5.5.2
Installation for Mechanical Stress Conditions
Mechanical stress such as vibration, shock, etc., may strain and break cables.
Therefore, suitable measures to fasten the antenna cable must be taken; e.g., in
the strain relief on the EnOcean Gateway enclosure.
