Интерфейсы / Интерфейс RS-422
| Схема цоколевки |
| Вилка DB37 |
Розетка DB37 |
 |
 | |
| Названия и функциональные назначения выводов |
| № вывода |
Обозначение |
Направление сигнала |
Описание |
| 1 |
GND |
 |
Shield Ground |
| 2 |
SRI |
 |
Signal Rate Indicator |
| 3 |
n/c |
|
Spare |
| 4 |
SD |
 |
Send Data |
| 5 |
ST |
|
Send Timing |
| 6 |
RD |
|
Receive Data |
| 7 |
RTS |
|
Request To Send |
| 8 |
RR |
|
Receiver Ready |
| 9 |
CTS |
|
Clear To Send |
| 10 |
LL |
|
Local Loopback |
| 11 |
DM |
|
Data Modem |
| 12 |
TR |
|
Terminal Ready |
| 13 |
RR |
|
Receiver Ready |
| 14 |
RL |
|
Remote Loopback |
| 15 |
IC |
|
Incoming Call |
| 16 |
SF/SR |
|
Select Frequency/Select Rate |
| 17 |
TT |
|
Terminal Timing |
| 18 |
TM |
|
Test Mode |
| 19 |
GND |
|
Ground |
| 20 |
RC |
|
Receive Twister-Pair Common |
| 21 |
GND |
|
Spare Twister-Pair Return |
| 22 |
/SD |
|
Send Data TPR |
| 23 |
GND |
|
Send Timing TPR |
| 24 |
GND |
|
Receive Timing TPR |
| 25 |
/RS |
|
Request To Send TPR |
| 26 |
/RT |
|
Receive Timing TPR |
| 27 |
/CS |
|
Clear To Send TPR |
| 28 |
IS |
|
Terminal In Service |
| 29 |
/DM |
|
Data Mode TPR |
| 30 |
/TR |
|
Terminal Ready TPR |
| 31 |
/RR |
|
Receiver TPR |
| 32 |
SS |
|
Select Standby |
| 33 |
SQ |
|
Signal Quality |
| 34 |
NS |
|
New Signal |
| 35 |
/TT |
|
Terminal Timing TPR |
| 36 |
SB |
|
Standby Indicator |
| 37 |
SC |
|
Send Twister Pair Common | |
| 
