TABLE A-1 RS-449 Connector Pin Assignments (Continued)
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Pin No. | Signal Name | Description | |
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38 | CTS2(B) | 27 | Port 2 Clear To Send |
39 | RxC2(A) | 8 | Port 2 Receive Clock |
40 | RxC2(B) | 26 | Port 2 Receive Clock |
Shield Ground | SG | 1 | Port 2 Shield Ground and Signal |
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| ground |
41 | RxD3(A) | 6 | Port 3 Receive Data |
42 | RxD3(B) | 24 | Port 3 Receive Data |
43 | DTR3(A) | 12 | Port 3 Data Terminal Ready |
44 | DTR3(B) | 30 | Port 3 Data Terminal Ready |
45 | TxD3(A) | 4 | Port 3 Transmit Data |
46 | TxD3(B) | 22 | Port 3 Transmit Data |
47 | RTS3(A) | 7 | Port 3 Request To Send |
48 | RTS3(B) | 25 | Port 3 Request To Send |
49 | TxC3(A) | 17 | Port 3 Transmit Clock |
50 | TxC3(B) | 35 | Port 3 Transmit Clock |
51 | TxCI3(A) | 5 | Port 3 Transmit Clock In |
52 | TxCI3(B) | 23 | Port 3 Transmit Clock In |
53 | DCD3(A) | 13 | Port 3 Data Carrier Detect |
54 | DCD3(B) | 31 | Port 3 Data Carrier Detect |
55 | DSR3(A) | 11 | Port 3 Data Set Ready |
56 | DSR3(B) | 29 | Port 3 Data Set Ready |
57 | CTS3(A) | 9 | Port 3 Clear To Send |
58 | CTS3(B) | 27 | Port 3 Clear To Send |
59 | RxC3(A) | 8 | Port 3 Receive Clock |
60 | RxC3(B) | 26 | Port 3 Receive Clock |
Shield Ground | SG | 1 | Port 3 Shield Ground and Signal |
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| Ground |
61 | RxD4(A) | 6 | Port 4 Receive Data |
62 | RxD4(B) | 24 | Port 4 Receive Data |
63 | DTR4(A) | 12 | Port 4 Data Terminal Ready |
64 | DTR4(B) | 30 | Port 4 Data Terminal Ready |
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