User Manual

Siemens Building Technologies CA2N1653E / 11.1998
Landis & Staefa Division 3/4
Connection to the controller
Use twisted pair cable to connect the PBAS/C1 room operating unit to the
controller. Screening is not required.
See the relevant controller description for:
• Connection diagrams
• Cable types and admissible lengths
Commissioning / Service
To set the PRONTO IRC controller parameters and read controller data, the
ZS1 service terminal may be connected to the FCC telephone socket on the
room operating unit (see page 1). It is then possible to set the parameters
of all controllers connected to the same trunk.
Initialisation is only possible with the ZS1 connected directly to the relevant
controller.
If there is no requirement for communication with the controllers from the
room operating unit, there is no need to wire the service bus (see
"Terminal layout", page 2).