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Key specifications, markings, and environmental conditions for the explosion-proof telephone.
Essential safety, setup, and usage guidelines for operating the telephone in hazardous areas.
Detailed technical specifications, including ringing voltage, current, dialling, and tone characteristics.
Detailed dimensions and diagram for preparing the mounting surface for the telephone unit.
Explanation of the telephone card components and jumper configurations for various functions.
Procedure for connecting the telephone to the communication line via the intrinsic safety card.
Step-by-step instructions for initiating calls using the TLA 227 A1A keypad telephone.
Instructions for programming single-digit autodial memories for quick dialing.
Configuration of DTMF or pulse dialling modes and automatic line cleardown.
Steps to program and test stored phone numbers for the TLS 227 A1C4 model.
Procedures for cleaning and maintaining the exterior of the telephone unit.
Steps to diagnose and resolve issues related to telephone line connection or dialling.
Diagnosing and resolving problems affecting audio transmission quality, including microphone issues.
Configuration codes for setting hardware status, dialling type, and automatic cleardown.
Official declaration confirming the explosion-proof telephone's compliance with ATEX directives and standards.
General