OBID i-
scan
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Installation
ID ISC.LRU3000
FEIG ELECTRONIC GmbH
Page 35 of 52
LRU3000 - Manual.doc
E N G L I S H
9.2 Interfaces
9.2.1 Power Supply via PoE (Power over Ethernet) on X2
Optional the reader 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.
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 1Watt.
•
It must be ensured that the reader is supplied with 42,5 V DC (48 V DC – cable losses) at
least.
Depending on the cable cross-section the following cable distances can be used.
cable cross-section (CAT5...7)
Maximum cable length for PoE
0,4mm
≈
30m
0,6mm
≈
70m
Table 7 Maximum cable length if PoE is used.
* For detailed technical information regarding the 802.3at standard, please refer to the most
recent edition of the corresponding IEEE specification.
