1 the k-net pinout, 2 the rs-232 pinout, The k-net pinout – Kramer Electronics PL-8 User Manual
Page 9: The rs-232 pinout, Figure 4: wiring the k-net connector, Figure 5: rs-232 pinout connection, Table 3: rs-232 pinout connection, Section 5.2, Configuring the pl-8 low voltage relay controller, Rs-232 pinout
