OM POWER OM2501A - Page 50

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PC connector DB 9 female
RS232 connection to the computer. For CAT communication connect pin 2 TX-
D, pin 3 RX-D and pin 5 GROUND
KEY IN – RCA connector
Input signal PTT switching voltage / current 5V /2mA)
KEY OUT – RCA connector
Output signal PTT (maximum switching of 30V / 50mA)
LAN connector
Use for connection to the LAN or WAN network.