 |
Ethernet, Fast Ethernet Twisted Pair (RJ 45)
DTE interface, 8-pin RJ 45 socket
| |
Pin |
Description |
Funktion |
 |
1 |
TXD (+) |
Transmit line |
| 2 |
TXD (-) |
Transmit line |
| 3 |
RXD (+) |
Receive line |
| 4 |
|
|
| 5 |
|
|
| 6 |
RXD (-) |
Receive line |
| 7 |
|
|
| 8 |
|
|
DCE interface, 8-pin RJ 45 socket
| |
Pin |
Description |
Funktion |
|
1 |
TXD (+) |
Transmit line |
| 2 |
TXD (-) |
Transmit line |
| 3 |
RXD (+) |
Receive line |
| 4 |
|
|
| 5 |
|
|
| 6 |
RXD (-) |
Receive line |
| 7 |
|
|
| 8 |
|
|
ISDN S0
8-pin RJ 45 socket
| |
Pin |
Description |
Funktion |
|
1 |
|
|
| 2 |
|
|
| 3 |
TXD (+) |
Transmit data plus |
| 4 |
RXD (+) |
Receive data plus |
| 5 |
RXD (-) |
Receive data minus |
| 6 |
TXD (-) |
Transmit data minus |
| 7 |
|
|
| 8 |
|
|
V.24 interface
| |
Pin |
EIA |
Abbreviation |
Description |
 |
1 |
AA |
PROT |
protective ground |
| 2 |
BA |
TXD |
transmitted data |
| 3 |
BB |
RXD |
received data |
| 4 |
CA |
RTS |
request to sendPROT |
| 5 |
CB |
CTS |
clear to send |
| 6 |
CC |
DSR |
data set ready |
| 7 |
AB |
GND |
signal ground |
| 8 |
CF |
DCD |
data carrier detect |
| 9 |
- |
|
|
| 10 |
- |
|
|
| 11 |
- |
|
select transmit freq. |
| 12 |
SCF |
|
data carrier detect ch.2 |
| 13 |
SCB |
|
clear to send ch.2 |
| 14 |
SBA |
|
transmitted data ch.2 |
| 15 |
DB |
TC |
transmitter clock |
| 16 |
SBB |
|
received data ch.2 |
| 17 |
DD |
RC |
receiver clock |
| 18 |
- |
|
local loopback |
| 19 |
SCA |
|
request to send ch.2 |
| 20 |
-
CD |
|
connect data set line
data terminal ready |
| 21 |
CG |
|
signal quality detector |
| 22 |
CE |
RI |
ring indicator |
| 23 |
CH
CI |
|
data rate selector |
| 24 |
DA |
TC |
external transmitter clock |
| 25 |
- |
|
test indicator |
X.21 interface
DTE interface
X.21/V.11, 15-ping SUB-D socket
| |
Pin |
X.21 / V.11 |
Funktion |
 |
1 |
|
|
| 2 |
TXD (+) |
Transmit data |
| 3 |
CTRL (+) |
Control |
| 4 |
RXD (+) |
Receive data |
| 5 |
IND (+) |
Indicate |
| 6 |
SET (+) |
Signal element timing |
| 7 |
|
|
| 8 |
GND |
Signal ground |
| 9 |
TXD (-) |
Transmit data |
| 10 |
CTRL (-) |
Control |
| 11 |
RXD (-) |
Receive data |
| 12 |
IND (-) |
Indicate |
| 13 |
SET (-) |
Signal element timing |
| 14 |
|
|
| 15 |
|
|
DCE interface
X.21/V.11, 15-pin SUB-D socket
| |
Pin |
X.21 / V.11 |
Funktion |
|
1 |
|
|
| 2 |
TXD (+) |
Transmit data |
| 3 |
CTRL (+) |
Control |
| 4 |
RXD (+) |
Receive data |
| 5 |
IND (+) |
Indicate |
| 6 |
SET (+) |
Signal element timing |
| 7 |
|
|
| 8 |
GND |
Signal ground |
| 9 |
TXD (-) |
Transmit data |
| 10 |
CTRL (-) |
Control |
| 11 |
RXD (-) |
Receive data |
| 12 |
IND (-) |
Indicate |
| 13 |
SET (-) |
Signal element timing |
| 14 |
|
|
| 15 |
|
|
|
