My 2476D switch when using the LED brightness, if set to 0 it is on, any other number 1-254 it turns off also.
Mon 11/29/2010 06:33:48 PM : [ IR] 034A Press
Mon 11/29/2010 06:33:57 PM : [ IR] 0085 Press
Mon 11/29/2010 06:34:02 PM : [16 10 5D 1 ] Memory : Write dbAddr=0x0264 [01]
Mon 11/29/2010 06:34:02 PM : [iNST-ACK ] 02 62 16.10.5D 1F 2E 00 01 03 01 00 00 00 00 00 00 00 00 00 00 00 06 (00)
Mon 11/29/2010 06:34:02 PM : [iNST-SRX ] 02 50 16.10.5D 13.21.FF 27 2E 00 (00)
Mon 11/29/2010 06:34:02 PM : [standard-Direct Ack][16.10.5D-->ISY/PLM Group=0] Max Hops=3, Hops Left=1
Mon 11/29/2010 06:34:03 PM : [ IR] 0151 Press
Mon 11/29/2010 06:34:14 PM : [16 10 5D 1 ] Memory : Write dbAddr=0x0264 [00]
Mon 11/29/2010 06:34:14 PM : [iNST-ACK ] 02 62 16.10.5D 1F 2E 00 01 03 00 00 00 00 00 00 00 00 00 00 00 00 06 (00)
Mon 11/29/2010 06:34:15 PM : [iNST-SRX ] 02 50 16.10.5D 13.21.FF 27 2E 00 (00)
Mon 11/29/2010 06:34:15 PM : [standard-Direct Ack][16.10.5D-->ISY/PLM Group=0] Max Hops=3, Hops Left=1
I set it to 1 first, then to 0.