The DS-22 WFD IP 3 line weatherproof digital call station is used in intercom systems in the DS-22 decentralised communication system. It enables direct voice connections with other call stations and loudspeaker announcements outdoors and in rooms with harsh or noisy environments, e.g. in heavy industry operations or railway engineering areas.

With its integrated DR-Intercom and crossing barrier station functions, the DS-22 WFD IP weatherproof digital call station is ideally suited for use in railway applications. These functions facilitate communication between railway operators and enable communication between road users and railway operators of manually controlled level crossings.

The DS-22 WFDR IP 3 line weatherproof digital call stations described here have one to three single toggle buttons for up to three lines and are available in the housing colours pure orange RAL 2004 and golden yellow RAL 1004.

The call stations of this retro-design are primarily used to replace existing call stations of other technologies, taking into account the previous mounting positions, e.g. in recesses.

With a connected WFDR 3 line Add-on housing, it is possible to expand the DS-22 WFDR IP 3 line weatherproof digital call station by an additional 3 single toggle buttons with three additional lines, per connected WFDR Add-on housing.

Up to four WFDR 3 line Add-on housings can be connected to a DS-22 WFDR IP 3 line weatherproof digital call station. This makes it possible to equip a DS-22 WFDR IP 3 line weatherproof digital call station in full configuration with a maximum of 18 buttons.

The DS-22 WFDR IP 3 line weatherproof digital call station is connected to the DS-22 network via standard network cables. The standard power supply of the DS-22 WFDR IP 3 line weatherproof digital call station is PoE, a DC 48V power supply from the network node is optionally possible.

The DS-22 WFDR IP 3 line weatherproof digital call station is connected to the DS-22 network via standard network cables. The standard power supply of the DS-22 WFDR IP 3 line weatherproof digital call station is PoE, a DC 48V power supply from the network node is optionally possible.

Call stations that do not have an integrated 30W Class-D additional amplifier are prepared for built- in and connection of a 30W Class-D additional amplifier. However, the type of connection must be taken into account. Both additional amplifiers can operate a local loudspeaker circuit (LC).