ELAN Home Systems DT22 manual RS232 Control Troubleshooting Procedures

DT22 INSTALLATION MANUAL E L A N H O M E S Y S T E M S

RS232 Control Troubleshooting Procedures

Symptom	Possible Cause/s		What an authorized installer can do
No source or zone	1.	RS-232 controller incor-	Verify/correct programming.
selected	rectly
from RS-232 con-	programmed.
troller.	2.	RS-232 signal path wir-	Verify RS-232 wiring. Check wire
	ing bad.		integrity an pin-out configuration.
Incorrect source	The system source select		Verify/correct programming.
and/or zone	RS-232 commands were
selected.	incorrectly programmed.
Acknowledgement	1.	The command was for-	Verify/correct programming.
ACK,xxx<CR> is	matted
not		incorrectly.
received within
200ms	2.	An error has occurred in	Turn unit OFF, then back ON.
	the DT22.
	3.	Serial cable not
	connected or		Connect or replace serial cable.
	defective.
	4.	DT22 does not have
	power.		Connect power, check breakers.

VIA!NET Control Troubleshooting Procedures

Symptom	Possible Cause/s	What an authorized installer can do
No source or zone	1. VIA!NET controller not	Program VIA!NET controller.
selected	programmed.
from VIA!NET
controller (VIA!	2. VIA!NET signal path wir-	Verify VIA!NET wiring.
Touch Panel, etc.).	ing bad.
Incorrect source	Incorrect system	Verify/correct programming.
and/or zone	commands programmed.
selected.

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