Scheduling, Device and network recovery planning – Echelon Lumewave CRD 3000 Street Light Bridge User Manual

Page 52

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Planning for the Street Lighting Solution

Figure 9. RF/RF Repeating

Scheduling

The Segment Controller includes an Event Scheduler application that you can

use to schedule events. Thus, for example, you can schedule luminaires to turn

on at sundown, dim at the end of the evening rush hour, brighten at the start of

the morning rush hour, and then turn off at sunrise. In general, you would not

define an event schedule for CRD 3000 Street Light Bridge modules (they should

run continuously).
See Chapter 6, Controlling a Street Lighting Network, on page 77, for more

information about scheduling.

Device and Network Recovery Planning

The CRD 3000 Street Light Bridge module has a watchdog mechanism that

covers the main processor, the Smart Transceiver, and the radio communication

chip. That is, if LonTalk (ISO/IEC 14908-3) communications are lost, the Smart

Transceiver resets; if the radio communications are lost, the radio communication

chip resets.
Figure 10 on page 43 shows a simple street lighting network with two CRD 3000

Street Light Bridge modules. This section considers two recovery scenarios: loss

of SLB A or loss of SLB B. For any extended outage (generally longer than 15

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