IEEE DRAFT 1390.2 : D1 MARCH 97

1. Overview
1.1 scope
1.2 Purpose
2. References
3. Definitions
4. Utility Telemetry Service Description
4.1 Feature Description
4.2 Telephone Network Access Methods
4.3 Call Initiation by Utility or ESP
4.4 Call Initiated by the telemetry interface unit
4.5 Telemetry interface unit
4.6 Telephone Network Technical Requirements (TR's)
5. Telemetry Interface Unit functional requirements
5.1 Module Description
5.2 Functional Requirements of the telemetry interface unit
5.3 Operating States
6. Telemetry Interface Unit Network description
6.1 End User Wiring Configuration
6.2 Telemetry interface unit Transmission Methods
7. Network interface - Physical
7.1 Tip-Ring Electrical Characteristics
7.2 Ringer Equivalence Number
7.3 TIU's per line
7.4 Tamper Detection
7.5 Maintenance & Diagnostics
8. Telephone Network Alerting
8.1 Alert Tones
8.2 Power Ringing
8.3 Subaddressing
9. Telephone network call origination
10 Telephone network interface - transmission
11 Telephone network - protocol
12 Calls initiated by the utility or enhanced service provider
13 Calls initiated by the TIU
14 Calls initiated by the utility or enhance service provider (outbound)

Describes the telephone network interface to a telemetry interface unit which operates under the utility telemetry service architecture utility. This service is a basic transport architecture capable of supporting various applications. Calls are initiated either via a telemtry interface unit or a utility/ESP. Two access methods and two telemetry interface unit transmission methods are defined. The interface covered in this standard is described in basic terms of a utility meter reading/controlling service.