IDENTIFICATION
ID ISC.LRU3000 / LRU3500
4 Terminals
Page 11 of 30
4.2.2 Power Supply via Power over Ethernet (PoE)
Optional the reader (only LRU3500) can be powered via the LAN connector on X2 with the use of a PoE
„Power over Ethernet“ power supply according to IEEE802.3at*, Class4 (30/25,5Watt). The DC supply can be
achieved via the free pin’s 4,5 and 7,8 (Midspan-Power). Also a “Phantom Powering” (Inline-Power) via the
signal pin’s 1,2,3, and 6 is possible. Depending on the cable cross-section the following cable distances can
be used.
Table 7: Maximum cable length if PoE is used
cable cross-section (CAT5...7)
Maximum cable length for PoE
0,4mm
≈ 30m
0,6mm
≈ 70m
* For detailed technical information regarding the 802.3at standard, please refer to the most
recent edition of the corresponding IEEE specification.
Fig. 5: LAN and PoE connection
NOTE:
Take care if PoE is used the maximum reader output power of the reader must be limited to 1 W.
It must be ensured that the reader is supplied with 42.5 V DC (48 V DC
– cable losses) at least.
This functionality is only available with the reader models ID ISC.LRU3500-EU and ID
ISC.LRU3500-FCC.
An operation of an ID ISC.LRU3500 via an external power supply and Power over Ethernet (PoE)
at the same time is not recommended and can cause interferences during operation.
If Power over Ethernet is used the USB Host is not available.
