Installation of the Base Station
INSTALLATION GUIDE
IP-DECT Base Station and IP-DECT Gateway
Figure 15. Mounting of the IPBS.
3.3 Power the Base Station
The base station is powered the following ways:
• Power over Ethernet (only IPBS).
• Power over Express Powering Pairs (EPP) and data pairs (only BS3x0 and DB1)
• By a local power supply.
Do not power the base station using both power supplies. Parallel powering will not harm the base
station but it can disturb the signalling.
3.3.1 Power the IPBS over Ethernet
The IPBS supports Power over Ethernet, IEEE 802.3af, class 2. The power source will allocate 7W to the
IPBS. This must be regarded when planning the powering of the IPBSs so that the power limit of the PoE
power source is not exceeded.
The PoE standard supports two ways of feeding the power:
1. Power over the Rx/Tx data pairs.
2. Power over the spare cable pairs.
Both power feed methods are supported in the IPBS, it is also insensitive to change of the polarity.
3.3.2 Power the BS3x0 and DB1 over Express Powering Pair (EPP) and data pairs
When a base station is powered remotely via the IPBL, the maximum length between the base station and
the IPBL depends on the supply voltage, the number of twisted pairs used and the wire size. The length of
the cable should never exceed "data-limited" length of the cable, see Appendix A RFP Power Consumption,
page 32.
3.3.3 Power the Base Station with a Local Power Supply
Powering the base station with a local power supply can be done using the second data/power inlet on the
base station. The base station can be powered individually by an AC-adapter. The AC-adapter is provided
with an 8-pin RJ45 plug that can be plugged into the Power Supply jack. For specification see 2.6 AC-
adapter, page 14.
23
TD 92989EN / 25 January 2021 / Ver. E
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