Zigen HX-88 - Manual (Page 13)

Matrix Switching System—User Manual
13
The RS-232 Leg functions are described as below:
Pin No. Leg Description
1 N/u Null
2 Tx Send
3 Rx Receive
4 N/u Null
5 Gnd Ground
6 N/u Null
7 N/u Null
8 N/u Null
9 N/u Null
Figure 6-5
Figure 6-5 (a)