Specifications

145
Operation of entrance telephone
Gigaset SX353 / englisch / A31008-X353-B100-1-7619 / door_intercom.fm / 08.10.2003
Ritto TwinBus entrance system
Door type 2 (DTMF)
For details of connecting entrance telephones with DTMF control (door type 2), refer to
the example below.
Deutsche Telekom DoorLine
!
Caution!
Connect base power unit 4753/01 and additional unit TFV4680/00 using
enclosed bus connector.
Gigaset SX353
Gigaset SX353