System information

16 221 02-FGB 101 544 Uen H - June 2009
Refer to chapter 11 – Antenna Characteristics for information about
radiation patterns.
2.3.2 External UMTS/GSM Antennas
The Ericsson W3x is equipped with an MCX antenna connector for
connecting an optional external antenna available as an accessory and as
described below.
2.3.2.1 Window Antenna
An UMTS/GSM window antenna is available as an accessory.
This antenna is a penta-band antenna operating in the 824-960 and 1710-
2170 MHz frequency bands with a gain of 2.15 dBi.
The main function of the window antenna is to be able to separate the
placement of the unit and the antenna. Note that some modern windows
with metal coated energy glass will degrade the performance.
2.3.2.2 Roof Antenna
An UMTS/GSM roof antenna is available as an accessory.
This antenna is a penta-band antenna operating in the 824-960 and 1710-
2170 MHz frequency bands with a gain of 11 dBi with 0.5 dBi variation over
specified bands.
The roof antenna has a narrow directional angle for optimal performance
and it is very important to have it correct installed and aligned. Note that
line of sight with the base station is desired. If this is not possible, there is
not always best to point the antenna in the direction towards the base
station. It might be the case that a reflection from an obstacle can give
better performance.
2.3.3 Internal WLAN Antennas
The Ericsson W3x has two internal WLAN antennas (omni-directional).
The antennas are mounted orthogonally for best performance.
2.4 Power Supply
The Ericsson W3x can be powered from:
• AC Mains via an external AC/DC power adapter (10-28 VDC)
• Battery pack (backup). Only for W35, see section 2.4.2.
2.4.1 Power Adapter
The provided power adapter has the following characteristics:
Input: 100-240V AC, 50-60 Hz, 3 pin AC inlet connector (IEC 320 power
inlet).
Output: 15 VDC.
Power consumption: 7.0 W (typical) and 11.4 W (maximum) for W30 and
9.0 W (typical) and 12 W (maximum) for W35.