RS422介面定義

admin @ 2014-03-19 , reply:0

RS422介面定義
RS422介面定義


 


RS422公頭連接器



RS422母頭連接器


RS422介面定義









































































































































































































































Pin Name Dir 功能描述
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 Mode
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




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