Title: +038=534.001-RA001._02-Porttelefon Siedle Systemanvisning.pdf
5 System components Call buttonsBTM 650-01 to -04 Bus call button modules BTM 650-… with 1, 2, 3 or 4 call buttons. The BTM 650-… is connected to the ATLM 670-… via ribbon cable. Nameplate size (mm) W x H: 65 x 19.5 Call button (mm) W x H: 24 x 24 Protection system: IP 54 Ambient temperature: –20 °C to +55 °C Dimensions (mm) W x H x D: 99 x 99 x 2740BRMA 050-01 Bus call button matrix for con- necting 12 on-site call buttons to the BTLE 050-…/ATLE 670-… custom-fit door loudspeaker. Max. 160 call buttons can be con- nected. However, a bus call button matrix BRMA 050-… is required for each started group of 12 call but- tons. Max. 14 BRMA 050-… can be connected to 1 BTLE 050-… Max. 16 BRMA 050-… can be connected to 1 ATLE 670-…The connection of the call buttons for Siedle Classic is described in the call button wiring diagram. (For detailed information, see page 108)System upgrading