NRD-545 Cable Computer DB-25(m) DB-9(f) 2 Tx Red 2 Rx 3 Rx Green 3 Tx 4 RTS White 7 RTS 5 CTS Black 8 CTS 7 Gnd Shield 5 Gnd 1, 4, 9* * on the computer connector pins 1, 4 and 9 are tied toghther. This fools the computer into seeing hardware flow control...