KNEX Explosion proof telephone series
· Analogue telephone matching with most PABX, PBX and PAX system
· Robust body Housing material Glass-fiber-reinforced polyester
· Busy tone detection for auto release the line if line busy
· Dry contact for external control automation
· Auto answer
· Full Soft lock: only dial out from phone book 50 memory address number
· Half soft lock: limit to dial out starting number, e.g. “00852” area code
· High temperature approval
· Ring sound 95 dB dfd in 1 m and 10 ringing tone melodies selectable
· Listening by loudspeaker: 70dB in 1m
· Phone book memory: 50 address ( name & number) programmable
· Stainless steel keypad for dial and manuel
· Magnetic reed hook-switch
· Telephone line powered. No external power or battery required
