Matrix-orbital LK202-25 Legacy Manuel d'utilisateur télécharger pdf (Page 10)

Table 2: Connectors and Functions

Connector Function

12 pin dual header General purpose outputs

(6)

4 pin Power (5.0 VDC), Data

(Rx,Tx), I

C communica-

tions and Ground

10 pin header Keypad and ground strap-

ping

DB-9F RS-232 / power

2.1.1 Power Connections

Power is applied via pin1 and ground via pin 4 as shown in the ﬁgure below. Power requirement is +5

VDC ±0.25V. As an alternate power connection, power may also be supplied via the RS-232 connector as

described in section2.1.4

WARNINGS

• Do not apply any power with reversed polarization.

• Do not apply any voltage other than the speciﬁed voltage.

• Do not use any cables other than the cables supplied by Matrix

Orbital, unless aware of the modiﬁcations required.

• Do not apply voltage to the DB-9 connector AND power connec-

tor.

• Do not apply more than +5Vdc to pin #9 on the DB-9 connector.

Power connector pinout is as follows:

1 2 3 4 12 34

Figure 3: Power Connector

Matrix Orbital LK202-25 6

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 49 50

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Matrix-orbital LK202-25 Legacy Manuel d'utilisateur Page 10