UM2107
Board purpose
, use and connections
DocID029674 Rev 2
5/10
1
Board purpose, use and connections
The goal of this evaluation board is to validate lightning protection for SLIC transceivers.
The board is able to protect four POTS lines. Several boards can be used if the number of
POTS lines is higher than four.
To use the board:
connect the lines in female RJ11 “LINEx” connectors (LINE1, LINE2, LINE3 and
LINE4)
plug cables to the “SLICx” connectors (RJ11 plug 6P4C) (cables are not provided)
plug the other end of the cable to the RJ11 SLIC transceiver
connect -Vbat from SLIC between GATE (GATE1, GATE2, GATE3 and GATE4) and
GND (GND1, GND2, GND3 and GND4); e.g., VGATE-GND = -Vbat = -48 V
In
Figure 1: "STEVAL-OET001V1 evaluation board"
, each POTS line has a LCP154DJF
and a 220 nF capacitor connected between GND and GATE, a female RJ11 to be
connected to the line (LINE1, LINE2, LINE3 and LINE4) and a female RJ11 to be
connected to the SLIC (SLIC1, SLIC 2, SLIC3 and SLIC4).
The following figure shows the LCP154DJF connection schematic for one line.
Figure 2: One POTS line connection
All GND are connected.
