UM1063 datasheet(11/32 Pages) STMICROELECTRONICS

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UM1063

I/O connectors and test points

This section provides a description of input/output connectors (

Table 3), LED indicators and

commands (

Table 4), as well as the available test points (Table 5).

Table 3. Connectors

Connector

Label

Description

Data and power

input

Power and Ethernet data input port

Data output

Ethernet data output port

Wall adapter input. Use this input jack to connect auxiliary

source without priority in respect to PoE.

Wall adapter input. Use this input jack to connect auxiliary

source with priority in respect to PoE.

Output voltage connector

JM1

Move the short on both jumpers at the same time:

short between pin 1 and 2 when SA auxiliary source is used

on J1 connector; short between pin 2 and 3 when SP

auxiliary source is used on J2 connector

JM2

Move the short on both jumpers at the same time:

short between pin 1 and 2 when SA auxiliary source is used

on J1 connector; short between pin 2 and 3 when SP

auxiliary source is used on J2 connector

Table 4. LEDs

LED

Label

Description

D20

AUX

ON when an auxiliary source is applied to the board; proper

selection of the auxiliary source connection is done with

jumpers JM1 and JM2

D44

L1_OK

ON when T2P is asserted. This is achieved when a 2-finger

event is detected. If, after a successful PoE+ layer-1

classification, an auxiliary voltage is connected, the T2P

signal is de-asserted and the L1_OK LED is turned off.

D26

GREEN LED

ON when output voltage is present.

Table 5. Test points

Test point

Color

Description

TP1

Red

Data transformer bias voltage

TP2

Red

Positive of auxiliary source AUX 1 on J2

TP3

Black

Ground of auxiliary source AUX 1 on J2

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