Chapter 2 - Installation & Connection
13
MT202TD RS-232 Signal Descriptions
Pin MTS Circuits Function Signal
Name EIA ITU-T Source
2 SD BA 103 Transmitted Data DTE
3 RD BB 104 Received Data DCE
4 RTS CA 105 Request to Send DTE
5 CTS CB 106 Clear to SendDCE
6 DSR CC 107 Data Set Ready DCE
7 SG AB 102 Signal Ground -----
8 CD CF 109 Data Carrier DCE
Detector
9 +V +V ----- Test Voltage DCE
DTE= Data Terminal Equipment (terminal or computer)
DCE= Data Communications Equipment (the modem)
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