
To simplify connections to other devices, each port on the 
| TxD | 1 | 7 | pin 3 | 
| pin 2 | 2 | 8 | RxD | 
| RTS | 3 | 9 | pin 7 | 
| pin 8 | 4 | 10 | CTS | 
| DTR | 5 | 11 | pin 4 | 
| pin 6 | 6 | 12 | DSR | 
| TxD | 1 | 7 | pin 3 | 
| pin 2 | 2 | 8 | RxD | 
| RTS | 3 | 9 | pin 7 | 
| pin 8 | 4 | 10 | CTS | 
| DTR | 5 | 11 | pin 4 | 
| pin 6 | 6 | 12 | DSR | 
DTE configuration (factory default)
J5 --  Serial 0
J6 --  Serial 1
These jumper blocks are used to connect 
| TxD | 1 | 7 | pin 3 | 
| pin 2 | 2 | 8 | RxD | 
| RTS | 3 | 9 | pin 7 | 
| pin 8 | 4 | 10 | CTS | 
| DTR | 5 | 11 | pin 4 | 
| pin 6 | 6 | 12 | DSR | 
DCE configuration
Figure 13 ---  DTE or DCE output selection
(Jumpers J5 and J6)
| 
 | 
