Figure 3.22 Lim-P Board - Samsung OfficeServ 7400 Installation Manual

3.3.1.5 LIM-P Boards
LAN Interface Module with PoE(LIM-P) can use Power Supply Unit(PSU) or an external
rectifier and selects the power supply source by using shunt pins.
For the use of PSU: The shunt pins(J1, J2 and J3) are connected between pin1 and
pin2.
Since the available capacity is limited to PSU, the use of ports is limited to 16 ports
and the use of digital phones is, also, limited.(For more information on the limitation
about the use of digital phone phones in accordance with the use of LIM-P port,
contact your dealer.)
For the use of an external rectifier: The shunt pins(J1, J2 and J3) are connected
between pin2 and pin3.
Since the external rectifier can supply 10 A current per module, any limitation for the
use of ports or digital phones does not exist.
Limit each current running through LIM-P ports below 0.1A and in the board below
1.6 A.
Each jumper is numbered in ascending order from the marked '1' in the following figure.
Pin No.
RJ-45
-48 V power and RTN are the return ground of -48 V power.
© SAMSUNG Electronics Co., Ltd.
1
1
1
J3
J2
J1

Figure 3.22 LIM-P Board

1 2 3
Tx+ Tx- Rx+
OfficeServ 7400 Installation Manual
4 5 6
RTN RTN Rx-
7 8
-48 V -48 V
3-17