User's Manual
Table Of Contents
- Contents
- 1 Overview
- 2 DC and RF Characteristics
- 3 Electrical Interface
- 4 Safety Considerations
- 5 Regulatory Considerations
- 6 Installation of TRN-2012/TRN-2113 Boards
- 7 Operating and Troubleshooting
- 8 Provisioning
- Appendix A Provisioning Process and Work Flow
- Appendix B Test Mode Interface
- B.1 Normal Operating Mode 0
- B.2 Non-Persistent Idle / Factory Test Mode 1
- B.3 Persistent Idle / Factory Test Mode 2
- B.4 Non-Persistent Node RF Test Mode 3
- B.5 Persistent Node RF Test Mode 4
- B.6 Non-Persistent Manufacturing Cal Mode 5
- B.7 Persistent Manufacturing Cal Mode 6
- B.8 Non-Persistent Meter Diagnostic Mode (Not Yet Implemented)
- B.9 Setting eMCM to Test Mode 1 - Non-Persistent Idle Factory Test Mode
- B.10 Setting eMCM to Test Mode 2 - Persistent Idle Factory Test Mode
- B.11 Setting eMCM to Test Mode 3 - Non-Persistent RF Test Mode
- B.12 Setting eMCM to Test Mode 4 - Persistent RF Test Mode
- Appendix C REACH Compliance Statements
- Appendix D Abbreviations and Terms
- Appendix E TRN-2012 / TRN-2113 Mechanical Drawings and Schematics
On-Ramp Wireless Confidential and Proprietary 18 014-0047-00 Rev. C
7 Operating and Troubleshooting
This section provides an overview of the functionality and how best to troubleshoot a module.
7.1 Operating
The operating mode of the TRN-2012/TRN-2113 is simple in concept but has many nuances. For
a pictorial view of the system, refer to Figure 1. On-Ramp Wireless Total Reach Network.
1. When the TRN-2012/TRN-2113 powers up, it looks for a wireless Access Point (AP). This
could take up to a minute or so, depending on a number of factors.
2. The TRN-2012/TRN-2113 uses a channel list that is set up and configured during provisioning
at the factory. Provisioning configures what radio channels the APs should use and the
security keys required. The provisioned security keys keep customers isolated so that the
TRN-2012/TRN-2113 will not join a non-authorized network.
3. When the TRN-2012/TRN-2113 finds an appropriate AP, it sends a registration request to
the AP and is accepted onto the network, assuming all its security is good and intact.
4. Once enabled on the RF network, the TRN-2012/TRN-2113 can be controlled by the network
and share its meter readings with the network.
5. At a low level, the TRN-2012/TRN-2113 is connected to the SGM3000 meter via a 3.3V UART
interface (12-pin connector). The physical interface of the TRN-2012/TRN-2113 is powered
through the meter and gathers other detailed operational status of the meter. Another
signal example of the physical interface is a power fail signal. This signal, when asserted,
alerts the TRN-2012/TRN-2113 that power is about to go away; the TRN-2012/TRN-2113
then must clean up services and send a radio “power fail” message back to the network.
6. Across this physical interface, the TRN-2012/TRN-2113 communicates via an ANSI C12.19
protocol. The meter and the TRN-2012/TRN-2113 share information in this way.
7. When the network requests a demand reading of the meter’s current energy consumption,
the following occurs:
The message is sent wirelessly to the TRN-2012/TRN-2113.
The TRN-2012/TRN-2113 decodes the messages and determines the actions.
The TRN-2012/TRN-2113 sends a request to the meter.
The meter responds to the TRN-2012/TRN-2113 with the requested information.
The TRN-2012/TRN-2113 wirelessly transmits the requested information back to the
network, thus completing the action.
8. An asynchronous event in the TRN-2012/TRN-2113 is the Power Fail. When the meter
detects power has disappeared, it generates a “power fail” to the TRN-2012/TRN-2113. The
TRN-2012/TRN-2113 receives this digital signal and sends a power-fail back to the network
control center. Since there is no power from the meter, the TRN-2012/TRN-2113 resorts to
its own super-capacitors. The super-capacitors in the TRN-2012/TRN-2113 are two tall
(usually green) electrolytic capacitors. These special capacitors are charged with enough