PMAC Product Guide Serial Connections The PMAC Lite is provided with both RS232 and RS422 serial ports. To use the RS232 port on the 10- pin J4 connector, jumpers E107 and E108 must connect pins 1 and 2. To use the RS422 port on the 26-pin J4A connector, jumpers E107 and E108 must connect pins 2 and 3. Connectors J4 and J4A cannot be used at the same time. Delta Tau provides cables for connecting PMAC with a host computer. Accessory 3D connects J4A to a DB-25 connector; ACC-3L connects J4 to a DB-9 connector. Standard DB-9-to-DB-25 or DB-25-to-DB- 9 adapters may be needed for a particular setup.
If a cable needs to be made, the easiest approach is to use a flat cable prepared with flat-cable type connectors as indicated in the following diagrams: DB-9 Female IDC-10 Do not connect wire #10 DB-25 Female IDC-26 Do not connect wire #26 Machine Connections 35 PMAC (IDC-10) PC (DB-9) 1 1 2 6 (DSR) 3 2 (RXD) 4 7 (RTS) 5 3 (TXD) 6 8 (CTS) 7 4 (DTR) 8 9 9 5 (GND) 10 No connect PMAC (IDC-26) PC (DB-25) 1 1 2 14 3 2 (TXD) 4 15 5 3 (RXD) 6 16 7 4 (RTS) 8 17 9 5 (CTS) 10 18 11 6 (DSR) 12 19 13 7 (GND) 14 20 (DTR) 15 8 16 21 17 9 18 22 19 10 20 23 21 11 22 24 23 12 24 25 25 13 26 No connect 1 1 1 1