ST STEVAL-OET001V1 Manual de usuario

September 2016

DocID029674 Rev 2

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www.st.com

UM2107

User manual

Getting started with STEVAL-OET001V1 LCP154DJF evaluation

board to validate lightning protection for SLIC transceivers

Introduction

The STEVAL-OET001V1 board is designed to validate lightning protection for SLIC transceivers.

The board complies with ITU-T K20/21/45 and GR1089-Core associated with the Cooper Bussmann

telecom circuit protector fuse (TCP 1.25 A).

Figure 1: STEVAL-OET001V1 evaluation board

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Contents

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Contents

1Board purpose, use and connections............................................5

2Schematic diagrams........................................................................6

3Bill of materials................................................................................8

4Revision history ..............................................................................9

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List of tables

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List of tables

Table 1: STEVAL-OET001V1 bill of materials............................................................................................8

Table 2: Document revision history ............................................................................................................9

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List of figures

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List of figures

Figure 1: STEVAL-OET001V1 evaluation board........................................................................................1

Figure 2: One POTS line connection..........................................................................................................5

Figure 3: STEVAL-OET001V1 circuit schematic........................................................................................6

Figure 4: LCP154DJF connections.............................................................................................................7

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Board purpose, use and connections

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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.

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Schematic diagrams

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2 Schematic diagrams

The following figure shows the board schematic. Each line has 1 x LCP154DJF, 1 x 220 nF

capacitor connected between GND and GATE, 1 female RJ11 to be connected to the line

(labelled: LINE1, LINE2, LINE3 and LINE4) and 1 female RJ11 to be connected to the

SLIC (labelled: SLIC1, SLIC 2, SLIC3 and SLIC4).

Figure 3: STEVAL-OET001V1 circuit schematic

J1 LINE1

GND3

PLUG 4 mm

GATE3

PLUG 4 mm

220n

FUSE F8

FUSE

J4 SLIC2

FUSE

GND1

PLUG 4 mm

J8 SLIC4

FUSE

J6 SLIC3

U2 LCP154DJF

J2 SLIC1

U4 LCP154DJF

U3 LCP154DJF

GATE1

PLUG 4 mm

U1 LCP154DJF

J3 LINE2

FUSE

220n

J7 LINE4

J5 LINE3

GND2

PLUG 4 mm

FUSE

GATE2

PLUG 4 mm

220n GATE4

PLUG 4 mm

220n GND4

PLUG 4 mm

GSPG1507160920SG

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Schematic diagrams

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The figure below shows the connection of LCP154DJF associated with a SLIC.

Figure 4: LCP154DJF connections

See application note AN4876 on www.st.com for further LCP154DJF implementation and

performance details.

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Bill of materials

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3 Bill of materials

Table 1: STEVAL-OET001V1 bill of materials

Item

Q.ty

Reference

Value

Description

Order code

Manufacturer

C1, C2, C3,

1210

X7R

200 V

220 nF

220nF SMD

capacitor

MC1210B224K201CT

Multicomp

F1, F2, F3, F4,

F5, F6, F7, F8

1.25 A

Fuse Cooper-

Bussmann

TR2/TCP1.25-R

Eaton/

Bussmann

J1, J2, J3, J4,

J5, J6, J7, J8

RJ11 female

plugs

331-6409

R.S.

GND1, GND2,

GND3, GND4,

GATE1,

GATE2,

GATE3,

GATE4

plug 4

4 mm

connectors

U1, U2, U3,

Programmable

transient voltage

suppressor

LCP154DJF

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Revision history

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4 Revision history

Table 2: Document revision history

Date

Revision

Changes

31-Aug-2016

Initial release

01-Sep-2016

Minor text changes

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IMPORTANT NOTICE –PLEASE READ CAREFULLY

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications , and

improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST

products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order

acknowledgement.

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the

design of Purchasers’ products.

No license, express or implied, to any intellectual property right is granted by ST herein.

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.

ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.

Information in this document supersedes and replaces information previously supplied in any prior versions of this document.

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