ALARM SYSTEMS - PART 7-6: MESSAGE FORMATS AND PROTOCOLS FOR SERIAL DATA INTERFACES IN ALARM TRANSMISSION SYSTEMS - ALARM SYSTEM INTERFACES EMPLOYING ITU-T RECOMMENDATION V.24/V.28 SIGNALLING
International Electrotechnical Committee
FOREWORD<br>1 Scope<br>2 Normative references<br>3 Definitions<br>4 Abbreviations<br>5 Layer 7 - Application functions<br>6 Layer 4 - Transport<br>7 Layer 3 - Network<br>8 Notification of transmission errors<br>9 Layer 2 - Data link<br>10 Signal levels
Gives the requirements for standard interfaces employing ITU-T V.24/V.28 signalling for communications between the control and indicating equipment of an alarm system and transmission equipment used for remote communications, where the transmission equipment is general purpose equipment, not exclusively designed for the alarms industry.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 79 |
