Matrix Orbital PK202-25 - Manual (Page 9)

GPOs Configuration Jumpers
Power/Data Connector DB9 Connector
Keypad Connector
1-Wire Connector
Figure 2: Electrical Connections
The display has four connectors:
Table 2: Connectors & Functions
Connector Function
12 pin dual header General purpose outputs (6)
4 pin Power (5.0 VDC), Data (Rx, Tx), I 2 C communications and Ground
12 pin header Keypad and ground strapping
DB-9F RS-232 / power
Matrix Orbital PK202-25 5