Matrix Orbital LK162-12 Legacy - Manual (Page 8)

LK162-12 rev 4 8
2. Connections
2.1 Connector Pinout
Refer to the diagram below for this chapter.
Figure 2-1 Electrical Connections
The LK162-12 has four connectors:
Connector Function
14 pin dual header General purpose outputs or Keypad (2x7) (see section 2.2)
4 pin power (Vdc) and I 2 C communications (see section 2.1.1)
DB-9F RS-232/power (see section 2.1.1.1)
2.1.1 Power and I 2 C Connections
Power is applied via pins 1 and 4 as shown in Figure 2-1. Power requirement is +5 VDC ±0.25V. Power
may also be supplied via the RS-232 connector as described in the next section.
Warning:
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 you are aware of the modifications required.
Do not apply power to the DB-9 connector AND the power connector.
Do not apply more than +5Vdc to pin #9 on the DB-9 connector.
Connector pinout is as follows:
1 2 3 4
Figure 2-2 Power connector