Product manual
Troubleshooting Tools
Product Manual 33
3.3 X1 and X2 Serial links: SIO 1 and SIO 2
General serial interfaces: SIO 1 (X1) is an RS232 interface and
SIO 2 (X2) is an RS422 interface. Explanation of signals see 3.2.
Screw terminals
X1 X2
Pin Signal Pin Signal
1TXD 1TXD
2 RTS N 2 TXD N
30V 30V
4RXD 4RXD
5 CTS N 5 RXD N
60V 60V
7DTR 7DATA
8DSR 8DATA N
90V 90V
10 10 DCLK
11 11 DCLK N
12 12 0V