HP A4500A - VMEbus Single Board Computer 744 Motherboard Manual page 101

Cabling and racking guide
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This conversion can also be achieved using RJ45 patch panels:
DTC
RS-423/RS-232
Pin # on RJ45
signal
connector
1
RXa/RD
2
RXb/-
3
TXa/TD
4
CTS
5
RTS
6
TXb/SGND
7
Not Used
8
Not Used
ATT258A
ATT258A
8 wire
Pin # on RJ45
cable
connector
jumper
<--------->
1
<--------->
2
<--------->
3
<--------->
4
<--------->
5
<--------->
6
7
8
Adapting to an ATT258A cabling system
RS-423/RS-232
Pair
signal
RXa/RD
2
RXb/-
2
TXa/TD
3
CTS
1
RTS
1
TXb/SGND
3
Not Used
4
Not Used
4
9
95

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