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Why does the associate and sleep leds blink fast after association?

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I am using XB24-Z7 xBees. I have a one configured as a XB24-ZB Zigbee Router API version version 23A7 and the other configured as XB24-ZB Zigbee coordinator API 21A7. The coordinator blinks the assoc led correctly. Router has LEDs on pin 13 and pin 15. When power via USD both LEDs are on for ~5 seconds, off for ~3 seconds, both blink, both off for ~5, both on for 3 the latter 2 repeats a couple of times then maybe the assoc led blinks correctly for about 3 seconds then both LEDs blink fast (maybe 2 - 3 blinks per second). If left both may stop blinking the assoc led will blink correctly about 3 times then both blink fast.

Cannot connect to the router with X_CTU when both leds are blinking fast. If reset then X-CTU connects.

Any ideas why the router behaves this way?

Thank you..
asked Jul 1, 2012 in ZigBee PRO Featureset (and legacy ZNet 2.5) by albe New to the Community (4 points)

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1 Answer

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It does sound like the 2nd router is 'rebooting' - are you sure you supply enough power to allow radio TX? Check the capacitors after your regulator, as when teh Xbee enables it's radio power it can cause a 'brown-out' if you lack enough 'reserve' voltage.

Normally the assoc LED on a router does NOT blink, then blinks at the same rate as the coordinator after associated.
answered Jul 30, 2012 by lynnl Veteran of the Digi Community (1,047 points)