that allow you to install the Regesta-PRO-ER routers in different locations.
3.5.2.1 Positioning the Antenna
The antenna orientation and its location with respect to other wireless devices and radiation devices (such as com-
munication devices, personal computers, etc.) can influence significantly the device performance.
The antennas transmit and receive radio signals. Performance is also affected by environmental factors (such as the
distance between the device and the base station), physical obstacles and other interferences due to radio frequen-
cies (RF).
To achieve the best coverage, follow these steps:
• Whenever possible, place the antenna where there are no physical obstacles.
Obstacles between the antenna and the base station degrade the wireless sig-
nal. Place the antenna above ground level and steer it towards the nearest
base station.
• Density of materials also affects the antennas. Place them away from any type
of wall, metal screens, mirrors, etc.
• Do not place the antenna near columns that can produce shadow areas and
reduce the coverage zone.
• Keep the antenna away from metal pipes such as canals air-conditioning, etc.
• Please bear in mind that other wireless devices such as telephones, mi-
crowaves, etc., can temporarily interfere with the quality of the wireless signal.
• We do not recommend that you install the antennas near or between racks
containing communication devices, computers, etc. Use an extension cable
and place the antenna outside.
The following recommendations are applicable to all wireless devices:
• Do not touch or move the antenna while the device is transmitting or receiving.
• When the antenna is transmitting, do not touch any equipment that contains
devices that radiate very close to, or touching, any exposed part of the body
(particularly face and eyes).
• Do not install the device in areas where the atmosphere is potentially explos-
ive.
• Wireless devices can cause interference in other devices. Do not use the
device in areas where medical equipment is installed.
• In order to ensure that you are complying with the R&TTE 1999/5/EC norm,
the device must be at least 15 cm away from any person when operating.
3.5.3 Connecting ADSL/ADSL2+ over ISDN (DSL connector)
The Regesta-PRO-ER router has a DSL connector that allows connection to an ADSL/ADSL2+ network over ISDN.
It is a 4-wire female RJ11, and only the two middle ones are used for data transmission and reception.
Fig. 15:
DSL connector (ADSL & ADSL2+)
The
Full Rate
ADSL (ITU G.dmt or G.922.1) operating mode uses a higher transmission capacity that does not allow
3 Components and Power Supply
Teldat S.A.
16
Regesta-PRO-ER
