IDENTIFICATION
ID MAX.U500i
5 Terminals
Page 15 of 36
5.2.2 Power Supply via PoE (Power over Ethernet)
Optional the reader can be powered via the Ethernet interface on X1 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 pins 4, 5 and 7, 8 (Midspan-Power). Also a “Phantom Powering” (Inline-Power) via the signal
pins 1, 2, 3 and 6 is possible. Depending on the conductor cross-section the following cable distances can
be used:
Conductor Cross Section
(CAT5…7)
Max. Cable Length for PoE
0,4 mm²
~ 30 m
0,6 mm²
~ 70 m
Table 5: Max. cable length depending on the conductor cross section
* For detailed technical information regarding the 802.3at standard, please refer to the most recent edition of the
corresponding IEEE specification.
NOTE:
•
It must be ensured that the reader is supplied with 42.5 V (48 V DC – cable losses) at least.
•
An operation of an ID MAX.U500i via an external power supply and PoE at the same time is not
recommended and can cause interferences during operation.
•
If the reader is supplied via PoE, no DC voltage can be provided at the connection for the external
antenna.
Fig. 8: LAN and PoE Connection
