Connector - RS422 37pin

37 PIN D-SUB MALE at the DTE (Computer).
37 PIN D-SUB FEMALE at the DCE (Modem).
37 PIN D-SUB FEMALE (at the DCE)
37 PIN D-SUB MALE (at the DTE)
PinNameDirectionDescription
1GND---Shield Ground
2SRIInputSignal Rate Indicator
3n/c---Spare
4SDOutputSend Data
5STOutputSend Timing
6RDInputReceive Data
7RTSOutputRequest To Send
8RRInputReceiver Ready
9CTSInputClear To Send
10LLOutputLocal Loopback
11DMInputData Modem
12TROutputTerminal Ready
13RRInputReceiver Ready
14RLOutputRemote Loopback
15ICInputIncoming Call
16SF/SROutputSelect Frequency/Select Rate
17TTOutputTerminal Timing
18TMInputTest Mode
19GND---Ground
20RC---Receive Twister-Pair Common
21GND---Spare Twister-Pair Return
22/SD---Send Data TPR
23GND---Send Timing TPR
24GND---Receive Timing TPR
25/RS---Request To Send TPR
26/RT---Receive Timing TPR
27/CS---Clear To Send TPR
28ISInputTerminal In Service
29/DM---Data Mode TPR
30/TR---Terminal Ready TPR
31/RR---Receiver TPR
32SSOutputSelect Standby
33SQInputSignal Quality
34NSOutputNew Signal
35/TT---Terminal Timing TPR
36SBInputStandby Indicator
37SC---Send Twister Pair Common

Note: Direction is DTE (Computer) relative DCE (Modem).

Source: HW-Book 2001-06-08
Last modified: 2007-06-27 14:22:58.0
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