Product specifications

DECserver 900GM Installation
23
Connector Pin Assignments (Cont.)
Table 5 68-pin to Four 25-pin DB Octopus Cable Pinout
25-pin DB
Number
Twisted
Pairings
25-pin DB
Pin Number
68-pin
Pin Number
Full Modem
Control Signal
1 1 and HOUSING HOUSING SHIELD
Pi{
2 1 TXD
P
a
i
r
{
7 35 GND
Pair {
3 2 RXD
P
a
i
r
{
7 36 and 52 GND
Pi{
4 37 RTS
P
a
i
r
{
5 3 CTS
{
20 38 DTR
Pair {
6 4 DSR
{
8 18 DCD
Pair {
22 19 RI
{
12 20 SMI
Pair {
23 53 DSRS
2 1 and HOUSING HOUSING SHIELD
Pi{
2 5 TXD
P
a
i
r
{
7 39 GND
Pi{
3 6 RXD
P
a
i
r
{
7 40 and 56 GND
Pair {
4 41 RTS
P
a
i
r
{
5 7 CTS
{
20 42 DTR
Pair {
6 8 DSR
{
8 22 DCD
Pair {
22 23 RI
{
12 24 SMI
Pair {
23 57 DSRS
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