Cabling (continued)
DECserver 900TM 11
LKG-7294–92I
8
7
6
5
4
3
2
1
2
4
5
7
3
8-Pin
Modular
Jack
DB25
Plug
DSR
DTR
TXD
TXD GND
RXD
RXD GND
TXD
RTS
CTS
SIG GND
RXD
CTS
6
20
DSR
DTR
RTS
8
7
6
5
4
3
2
1
2
23
22
7
3
4
8-Pin
Modular
Jack
DB25
Plug
DCD
DTR
TXD
TXD GND
RXD
RXD GND
TXD
DSRS
RI
SIG GND
RXD
RTS
RI
8
20
DCD
DTR
DSRS
8
7
6
5
4
3
2
1
6
5
4
3
2
1
8-Pin
Modular
Jack
DB9
Jack
DSR
DTR
TXD
TXD GND
RXD
RXD GND
DRDY
GND
DTR
TXD
RXD
DCD
CTS
9
8
7
RI
CTS
RTS
RTS
8
7
6
5
4
3
2
1
6
5
4
3
2
1
8-Pin
Modular
Plug
6-Pin
Modular
Jack
DSR
DTR
TXD
TXD GND
RXD
RXD GND
DSR
RXD
RXD GND
TXD GND
TXD
DTR
CTS
8
7
6
5
4
3
2
1
6
5
4
3
2
1
8-Pin
Modular
Plug
6-Pin
Modular
Plug
DSR
DTR
TXD
TXD GND
RXD
RXD GND
DSR
RXD
RXD GND
TXD GND
TXD
DTR
Twisted pairs
1
2
3
4
5
6
7
8
8-Pin
Modular
Plug
8-Pin
Modular
Plug
1
2
3
4
5
6
7
8
*Software selectable
RXD GND
RXD
TXD GND
CTS or RI
RTS or DSRS
TXD
DTR
DSR or DCD
*
*
*
RXD GND
RXD
TXD GND
CTS or RI
RTS or DSRS
TXD
DTR
DSR or DCD
*
*
*
Twisted pairs
H8585-AC MJ8 to DB25 Modem Adapter
H8585-AB MJ8 to DB25 Modem Adapter
H8585-AA MJ8 to DB9 Null-Modem Adapter
H8584-AC MP8 to MMJ Adapter
BN24H MP8 to MP6 Office Cable
BN25G MP8 to MP8 Equipment Cable
The following wiring diagrams illustrate the cable connections that are compatible with
the DECserver 900TM Ethernet and serial line connectors: