Rj45 Connection To Rs-423/Rs-422 Hp 9000 With A Ddp Db25 - HP A4500A - VMEbus Single Board Computer 744 Motherboard Manual

7 RS-423 Connection
RJ 45 male connector to DTC
1 - RXa INPUT
2 - RXb INPUT
3 - TXa OUTPUT
4 - CTS INPUT
5 - RTS OUTPUT
6 - TXb OUTPUT
RS-423 RJ45 connection to RS-423/RS-422 HP 9000 with a DDP DB25
RJ 45 male connector to DTC
1 - RXa INPUT
2 - RXb INPUT
3 - TXa OUTPUT
4 - CTS INPUT
5 - RTS OUTPUT
6 - TXb OUTPUT
64
DTC - RJ45 DDP<---RJ45 extension--->RJ45 to DB25 adaptor--->Device
RJ45 male
connector
1
2
3
4
5
6
RJ45 extension
cable
This cabling scheme is recommended for connecting to HP 9000 RS-422 or RS-423
ports.
DTC-RJ45 DDP<---RJ45 extension--->RJ45 to DB25 adaptor--->DDP
DB25-HP 9000 Mux
RJ45 male
connector
1
2
3
4
5
6
RJ45 extension
cable
RJ45 female
connector 25-pin male connector to device
9 - TX-
1
10 - TX+
2
3 - RX-
3
1 - PGND
4
7 - SGND
5
18 - RX+
6
RJ45 to DB25
adaptor
RJ45 female
25-pin male connector to HP 9000
connector
1
17 - TX-
2
15 - TX+
3
25 - RX-
4
1 - PGND
5
19 - RX+
6
RJ45 to DB25
adaptor
OUTPUT
OUTPUT
INPUT
-
-
INPUT
Mux
OUTPUT
OUTPUT
INPUT
-
INPUT