HP A4500A - VMEbus Single Board Computer 744 Motherboard Manual page 97

DTC Pin # on Port number -
50-pin RS-423/RS232
connector signal
38 P4 - RTS
13 P4 - CTS
39 P4 - RXa/RD
14 P4 - RXb/-
40 P4 - TXa/TD
15 P4 - TXb/SGND
41 P5 - RTS
16 P5 - CTS
42 P5 - RXa/RD
17 P5 - RXb/-
43 P5 - TXa/TD
18 P5 - TXb/SGND
44 P6 - RTS
19 P6 - CTS
45 P6 - RXa/RD
20 P6 - RXb/-
46 P6 - TXa/TD
21 P6 - TXb/SGND
47 P7 - RTS
22 P7 - CTS
48 P7 - RXa/RD
23 P7 - RXb/-
49 P7 - TXa/TD
24 P7 - TXb/SGND
50 Not Used
25 Not Used
10BaseT
Pin # on
Jumpers
50-pin
connector
<---------> 34
<---------> 9
<---------> 35
<---------> 10
<---------> 36
<---------> 11
<---------> 37
<---------> 12
<---------> 38
<---------> 13
<---------> 39
<---------> 14
<---------> 40
<---------> 15
<---------> 41
<---------> 16
42
17
43
18
44
19
Adapting to a 10BaseT cabling system
Port number -
Pin # on RJ45
RS-423/RS-232
connector
signal
P4 - RXa/RD 1
P4 - RXb/- 2
P4 - TXa/TD 3
P4 - TXb/SGND 6
P5 - RXa/RD 1
P5 - RXb/- 2
P5 - TXa/TD 3
P5 - TXb/SGND 6
P6 - RXa/RD 1
P6 - RXb/- 2
P6 - TXa/TD 3
P6 - TXb/SGND 6
P7 - RXa/RD 1
P7 - RXb/- 2
P7 - TXa/TD 3
P7 - TXb/SGND 6
P7 - RXa/RD 1
P7 - RXb/- 2
P7 - TXa/TD 3
P7 - TXb/SGND 6
P7 - RXa/RD 1
P7 - RXb/- 2
9
91