Le Las 227A1 Guide D'instruction page 34

1.2 CONTENTS OF THE PACKAGE
The equipment you have just opened comprises:
• A telephone set
• A user manual
• Wallmounting kit Ref: GM208A12
1.3 GENERAL PRESENTATION OF SERIES 227A1 TELEPHONES
The telephone set is an explosionproof, wallmounted type , CB or ACB and comprises essentially:
• a casing protected to an enhanced level of safety, containing two intrinsically-safe printed circuit boards
and a set of electronic components, resin-coated and encapsulated. The coated printed circuit board has
on its upper side two "e" terminals for connection of external electrical circuits.
• an intrinsically safe (IP65) telephone handset of light alloy
• an optional second receiver, also intrinsically safe
The front cover closes on to a weatherproof seal via 3 hollow hexagonal or special (optionally vandal-
resistant) screws (M6) requiring a suitable key to undo them.
For all telephones types :
• Multifrequency (DTMF) and pulse dialling (for ACB type telephones)
• Remote modification of settings from a typical DTMF telephone or from a maintenance station, for
example:
Ø Ringing type
Ø Ringing volume
Ø Loudspeaker volume
Ø Type of dialling
• Automatic cleardown capability
• Offhook capability either immediately or after a programmable number of rings
• Tone security protection - microphone operable after internal dialling
For Hands free telephones :
• Automatic cleardown capability.
• Automatic answering capability or answering after a programmable number of rings.
• « Tone security protection » (microphone operable only after called party answers)
• Programming of stored numbers locally or via telephone line from any DTMF telephone.
• Chained numbers if the called number is busy or does not answer after a programmable time.
• Automatic off-hook
NFC227A*TEL2
\\SERVEUR MAX\\ Notices NFC \ NFC227 TL2 \ NFC227A-TEL2.DOC
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