That is normal for the ISY. The nodes can be renamed.
Here is what the event trace of a New INSTEON Device adding a Hidden Door Sensor. It is from 4.4.5 but there are no changes for a Hidden Door Sensor
Fri 03/18/2016 12:30:50 AM : [2b 9 59 ] Added to list of devices to link to ISY
Fri 03/18/2016 12:30:50 AM : [iNST-TX-I1 ] 02 62 2B 09 59 0F 0D 00
Fri 03/18/2016 12:30:50 AM : [iNST-ACK ] 02 62 2B.09.59 0F 0D 00 06 (00)
Fri 03/18/2016 12:30:50 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 0D 02 (02) - this is what device should have sent.
Fri 03/18/2016 12:30:50 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:30:50 AM : [iNST-TX-I1 ] 02 62 2B 09 59 0F 10 00
Fri 03/18/2016 12:30:50 AM : [iNST-ACK ] 02 62 2B.09.59 0F 10 00 06 ID-REQ (00)
Fri 03/18/2016 12:30:51 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 10 00 ID-REQ (00)
Fri 03/18/2016 12:30:51 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:30:51 AM : [iNST-SRX ] 02 50 2B.09.59 10.11.43 83 02 00 (00)
Fri 03/18/2016 12:30:51 AM : [std-Broadcast] 2B.09.59-->10.11.43, Max Hops=3, Hops Left=0
Fri 03/18/2016 12:30:52 AM : [2B 9 59 0 ] Calibrating engine version
Fri 03/18/2016 12:30:52 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0
Fri 03/18/2016 12:30:52 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 00 00 00 01 00 00 00 00 00 00 00 00 D0 06 (00)
Fri 03/18/2016 12:30:52 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2F 00 (00)
Fri 03/18/2016 12:30:52 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:30:53 AM : [iNST-ERX ] 02 51 2B 09 59 22 80 0B 11 2F 00 00 01 0F FF 01 62 01 1A 84 BB 01 00 01 03
Fri 03/18/2016 12:30:53 AM : [Ext-Direct ] 2B.09.59-->ISY/PLM Group=0, Max Hops=1, Hops Left=0
Fri 03/18/2016 12:30:53 AM : [2B 9 59 0 ] Using Database Link Table offset 0x0FF8 (reported 0x0FF8)
Fri 03/18/2016 12:30:53 AM : [2B 9 59 1 ] Start : Adding device to ISY
Fri 03/18/2016 12:30:53 AM : [2B 9 59 1 ] Finish : Adding device to ISY was Successful
Fri 03/18/2016 12:30:53 AM : [2B 9 59 1 ] Link 0 : 0FF8 [E20122800B010001] Saving [E20122800B010001]
Fri 03/18/2016 12:30:53 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2E 00 00 00 00 00 00 00 00 00 00 00 00 00 00 D2
Fri 03/18/2016 12:30:53 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2E 00 00 00 00 00 00 00 00 00 00 00 00 00 00 D2 06 (00)
Fri 03/18/2016 12:30:55 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2E 00 (00)
Fri 03/18/2016 12:30:55 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:30:56 AM : [iNST-ERX ] 02 51 2B 09 59 22 80 0B 17 2E 00 01 01 05 50 00 FF 40 00 00 00 00 00 00 D2
Fri 03/18/2016 12:30:56 AM : [Ext-Direct ] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:30:56 AM : [iNST-TX-I1 ] 02 62 2B 09 59 0F 1F 00
Fri 03/18/2016 12:30:56 AM : [iNST-ACK ] 02 62 2B.09.59 0F 1F 00 06 GOF (FLAGS)
Fri 03/18/2016 12:30:57 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 1F 05 GOF (05)
Fri 03/18/2016 12:30:57 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:30:57 AM : [2B 9 59 3 ] Start : Adding device to ISY
Fri 03/18/2016 12:30:57 AM : [2B 9 59 3 ] Finish : Adding device to ISY was Successful
Fri 03/18/2016 12:30:57 AM : [2B 9 59 3 ] Link 1 : 0FF0 [E20322800B010003] Saving [E20322800B010003]
Fri 03/18/2016 12:30:58 AM : [2B 9 59 4 ] Start : Adding device to ISY
Fri 03/18/2016 12:30:58 AM : [2B 9 59 4 ] Finish : Adding device to ISY was Successful
Fri 03/18/2016 12:30:58 AM : [2B 9 59 4 ] Link 2 : 0FE8 [E20422800B010004] Saving [E20422800B010004]
Fri 03/18/2016 12:31:00 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2E 00 00 00 00 00 00 00 00 00 00 00 00 00 00 D2
Fri 03/18/2016 12:31:00 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2E 00 00 00 00 00 00 00 00 00 00 00 00 00 00 D2 06 (00)
Fri 03/18/2016 12:31:00 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2E 00 (00)
Fri 03/18/2016 12:31:00 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:00 AM : [iNST-ERX ] 02 51 2B 09 59 22 80 0B 17 2E 00 01 01 05 50 00 FF 40 00 00 00 00 00 00 D2
Fri 03/18/2016 12:31:00 AM : [Ext-Direct ] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:00 AM : [iNST-TX-I1 ] 02 62 2B 09 59 0F 1F 00
Fri 03/18/2016 12:31:00 AM : [iNST-ACK ] 02 62 2B.09.59 0F 1F 00 06 GOF (FLAGS)
Fri 03/18/2016 12:31:00 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 1F 05 GOF (05)
Fri 03/18/2016 12:31:00 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:00 AM : [2B 9 59 0 ] Successfully added device
Fri 03/18/2016 12:31:00 AM : [All ] Writing 25 bytes to devices
Fri 03/18/2016 12:31:01 AM : [2B 9 59 1 ] Link 0 : 0FF8 [E20122800B010001] Writing [E20122800B010001]
Fri 03/18/2016 12:31:01 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 02 0F FF 08 E2 01 22 80 0B 01 00 01 27
Fri 03/18/2016 12:31:01 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 02 0F FF 08 E2 01 22 80 0B 01 00 01 27 06 (00)
Fri 03/18/2016 12:31:01 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2F 00 (00)
Fri 03/18/2016 12:31:01 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:01 AM : [MNG-LNK-RSP ] 02 6F 41 A2 01 2B 09 59 10 11 43 15
Fri 03/18/2016 12:31:01 AM : [PLM ] Group 1 : Writing Responder Link matching [2B 9 59 1 ] Link 0 : 0FF8 [E20122800B010001]
Fri 03/18/2016 12:31:01 AM : [2B 9 59 1 ] Link 1 : 0FF0 [E20322800B010003] Writing [E20322800B010003]
Fri 03/18/2016 12:31:01 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 02 0F F7 08 E2 03 22 80 0B 01 00 03 2B
Fri 03/18/2016 12:31:02 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 02 0F F7 08 E2 03 22 80 0B 01 00 03 2B 06 (00)
Fri 03/18/2016 12:31:03 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2F 00 (00)
Fri 03/18/2016 12:31:03 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:03 AM : [MNG-LNK-RSP ] 02 6F 41 A2 03 2B 09 59 10 11 43 06
Fri 03/18/2016 12:31:03 AM : [PLM ] Group 3 : Writing Responder Link matching [2B 9 59 1 ] Link 1 : 0FF0 [E20322800B010003]
Fri 03/18/2016 12:31:03 AM : [2B 9 59 1 ] Link 2 : 0FE8 [E20422800B010004] Writing [E20422800B010004]
Fri 03/18/2016 12:31:03 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 02 0F EF 08 E2 04 22 80 0B 01 00 04 31
Fri 03/18/2016 12:31:03 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 02 0F EF 08 E2 04 22 80 0B 01 00 04 31 06 (00)
Fri 03/18/2016 12:31:04 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2F 00 (00)
Fri 03/18/2016 12:31:04 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:04 AM : [MNG-LNK-RSP ] 02 6F 41 A2 04 2B 09 59 10 11 43 06
Fri 03/18/2016 12:31:04 AM : [PLM ] Group 4 : Writing Responder Link matching [2B 9 59 1 ] Link 2 : 0FE8 [E20422800B010004]
Fri 03/18/2016 12:31:05 AM : [2B 9 59 1 ] Link 3 : 0FE0 [0000000000000000] Writing [00..............]
Fri 03/18/2016 12:31:05 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 02 0F E7 08 00 00 00 00 00 00 00 00 D1
Fri 03/18/2016 12:31:05 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 02 0F E7 08 00 00 00 00 00 00 00 00 D1 06 (00)
Fri 03/18/2016 12:31:07 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 23 2F 00 (00)
Fri 03/18/2016 12:31:07 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=0
Fri 03/18/2016 12:31:07 AM : [2B 9 59 1 ] Link 4 : 0FD8 : Writing High Water Byte
Fri 03/18/2016 12:31:07 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 00 0F DF 01 00 00 00 00 00 00 00 00 E2
Fri 03/18/2016 12:31:07 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 00 0F DF 01 00 00 00 00 00 00 00 00 E2 06 (00)
Fri 03/18/2016 12:31:09 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2F 00 (00)
Fri 03/18/2016 12:31:09 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:10 AM : [iNST-ERX ] 02 51 2B 09 59 22 80 0B 13 2F 00 00 01 0F DF 01 00 00 00 00 00 00 00 00 E1
Fri 03/18/2016 12:31:10 AM : [Ext-Direct ] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=0
Fri 03/18/2016 12:31:10 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 00 0F DF 01 00 00 00 00 00 00 00 00 E2
Fri 03/18/2016 12:31:10 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 00 0F DF 01 00 00 00 00 00 00 00 00 E2 06 (00)
Fri 03/18/2016 12:31:13 AM : [iNST-ERX ] 02 51 2B 09 59 22 80 0B 11 2F 00 00 01 0F DF 01 00 00 00 00 00 00 00 00 E1
Fri 03/18/2016 12:31:13 AM : [Ext-Direct ] 2B.09.59-->ISY/PLM Group=0, Max Hops=1, Hops Left=0
Fri 03/18/2016 12:31:13 AM : [iNST-TX-I2CS] 02 62 2B 09 59 1F 2F 00 00 02 0F DF 08 00 00 00 00 00 00 00 00 D9
Fri 03/18/2016 12:31:13 AM : [iNST-ACK ] 02 62 2B.09.59 1F 2F 00 00 02 0F DF 08 00 00 00 00 00 00 00 00 D9 06 (00)
Fri 03/18/2016 12:31:14 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 2F 00 (00)
Fri 03/18/2016 12:31:14 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:14 AM : [iNST-TX-I1 ] 02 62 2B 09 59 0F 24 00
Fri 03/18/2016 12:31:14 AM : [iNST-ACK ] 02 62 2B.09.59 0F 24 00 06 (00)
Fri 03/18/2016 12:31:15 AM : [iNST-SRX ] 02 50 2B.09.59 22.80.0B 27 24 00 (00)
Fri 03/18/2016 12:31:15 AM : [std-Direct Ack] 2B.09.59-->ISY/PLM Group=0, Max Hops=3, Hops Left=1
Fri 03/18/2016 12:31:15 AM : [2B 9 59 1 ] Memory : EPROM Refreshed