1.
8
(MT13 - En 2015)
Multi-way installation with 2 main audio door stations, 2 secondary audio door
stations and doorkeeper exchanger. Independent operation between the risers.
2221ML
or 2221S
DV2420
2231
Articles in the dashed box
2221ML
or 2221S
Multi-way installation with 1 audio door sta-
tion
INSTALLATION EXAMPLES
Intercom systems
Articles in the dashed box
2221ML
or 2221S
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2220S
2221ML
or 2221S
2231
2220S
2
2
2
2
2
2
2
2
2
2
2
2
2
