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UltraPort Serial Adaptors User Guide
Host card back panel connectors and pinouts
Page 109
Chapter 3 Cabling information
3 RI4 RTS4+ NC
4 RTS4 RTS4- NC
5 DCD4 CTS4- NC
6 DTR4 TXD4+ TXD4+/RXD4+
7 DSR4 RXD4- RXD4-
8 TXD4 TXD4- TXD4-/RXD4-
9 S-GND S-GND S-GND
10 TXD3 TXD3- TXD3- / RXD3-
11 DSR3 RXD3- RXD3-
12 DTR3 TXD3+ TXD3+/RXD3+
13 DCD3 CTS3- NC
14 RTS3 RTS3- NC
15 RI3 RTS3+ NC
16 CTS3 CTS3+ NC
17 RXD3 RXD3+ RXD3+
18 RXD2 RXD2+ RXD2+
19 CTS2 CTS2+ NC
20 RI2 RTS2+ NC
21 RTS2 RTS2- NC
22 DCD2 CTS2- NC
23 DTR2 TXD2+ TXD2+/RXD2+
24 DSR2 RXD2- RXD2-
25 TXD2 TXD2- TXD2- / RXD2-
26 S-GND S-GND S-GND
27 TXD1 TXD1- TXD1- / RXD1-
28 DSR1 RXD1- RXD1-
29 DTR1 TXD1+ TXD1+/RXD1+
30 DCD1 CTS1- NC
31 RTS1 RTS1- NC
32 RI1 RTS1+ NC
33 CTS1 CTS1+ NC
VHDCI-68
Ultra SCSI
Pin Number
EIA-232 EIA-422 EIA-485