User Manual

Siemens Building Technologies CE1N2865E / 03.12.1998

Landis & Staefa Division 1/4

865

SYNERGYR



Multi

le Antenna ATW20.2

The multiple antenna receives the data delivered via radio and passes them on via

the coaxial cable to the central radio readout unit.

The multiple antenna is a component of the Radio Metering System.

For field of use of the Radio Metering System, please refer to data sheet N2860E.

Usually, the multiple antennas receive the consumption data delivered to them from an

entire floor and pass them on via the coaxial cable to the central radio readout unit

OZW20. By combining several multiple antennas, the reception range of the Radio Me-

tering System is extended.

When ordering, please give type reference ATW20.2.

The multiple antenna is a component of the Radio Metering System and is not suited for

use with any other type of system.

A maximum of ten multiple antennas is connected in series to the receiver - the central

radio readout unit OZW20 - via the coaxial cable.

For more detailed information, please refer to the Planning Manual, reference no.

J2861E.

The radio telegrams received by the multiple antenna are passed on to the coaxial ca-

ble. The data are neither stored nor changed, but only routed to the central radio read-

out unit OZW20.

The coaxial cable (e.g. CT100 75 Ω SAT cable) is connected to the multiple antenna by

means of F-connectors. The OUT jack routes the data to the OZW20. The next multiple

antenna is connected to the IN jack. The multiple antenna is powered by the OZW20 via

the antenna cable (DC 5 V).

Use

Function

Ordering

Equipment

combinations

Technical design

PAGE 1
2 865 SYNERGYR Multiple Antenna ATW20.2 The multiple antenna receives the data delivered via radio and passes them on via the coaxial cable to the central radio readout unit. Use The multiple antenna is a component of the Radio Metering System. For field of use of the Radio Metering System, please refer to data sheet N2860E.
PAGE 2
Mechanical design The multiple antenna is accommodated in a plastic casing with a hinged cover. The printed circuit board can be accessed after loosening the fixing screw. It carries the IN and OUT jacks to which the coaxial cables with F-connectors are secured. The coaxial cables are introduced through two openings at the bottom. A red LED serves for checking the proper functioning. It is lit when the functioning of the antenna is ensured and operating voltage of at least DC 4 V is present.
PAGE 3
OUT IN OUT IN 2865G01 Connections Coaxial cable to the next multiple antenna Coaxial cable to the central radio readout unit Connection diagram G1 AC 24 V OUT IN OUT U1 IN U2 OUT IN U10 G2 N1 2866A01 G1 G2 N1 Central radio readout unit OZW20 U1...U10 Multiple antenna ATW20.2 2865M01 192 8 55 Dimensions 108 Dimensions in mm Siemens Building Technologies Landis & Staefa Division CE1N2865E / 03.12.
PAGE 4
 1997 Siemens Building Technologies Ltd. CE1N2865E / 03.12.