RS-449 Connector Pin Assignments (Continued)
TABLE A-1
80-Pin Amp.
RS-449
Pin No.
Signal Name
10
TxC1(B)
11
TxCI1(A)
12
TxCI1(B)
13
DCD1(A)
14
DCD1(B)
15
DSR1(A)
16
DSR1(B)
17
CTS1(A)
18
CTS1(B)
19
RxC1(A)
20
RxC1(B)
Shield Ground SG
21
RxD2(A)
22
RxD2(B)
23
DTR2(A)
24
DTR2(B)
25
TxD2(A)
26
TxD2(B)
27
RTS2(A)
28
RTS2(B)
29
TxC2(A)
30
TxC2(B)
31
TxCI2(A)
32
TxCI2(B)
33
DCD2(A)
34
DCD2(B)
35
DSR2(A)
36
DSR2(B)
37
CTS2(A)
38
CTS2(B)
24
Sun PCI High Speed Quad Port Serial Interface Adapter User's Guide • May 2010
RS-449 DB-37
Pin No.
Description
35
Port 1 Transmit Clock
5
Port 1 Transmit Clock In
23
Port 1 Transmit Clock In
13
Port 1 Data Carrier Detect
31
Port 1 Data Carrier Detect
11
Port 1 Data Set Ready
29
Port 1 Data Set Ready
9
Port 1 Clear To Send
27
Port 1 Clear To Send
8
Port 1 Receive Clock
26
Port 1 Receive Clock
1
Port 1 Shield Ground and Signal Ground
6
Port 2 Receive Data
24
Port 2 Receive Data
12
Port 2 Data Terminal Ready
30
Port 2 Data Terminal Ready
4
Port 2 Transmit Data
22
Port 2 Transmit Data
7
Port 2 Request To Send
25
Port 2 Request To Send
17
Port 2 Transmit Clock
35
Port 2 Transmit Clock
5
Port 2 Transmit Clock In
23
Port 2 Transmit Clock In
13
Port 2 Data Carrier Detect
31
Port 2 Data Carrier Detect
11
Port 2 Data Set Ready
29
Port 2 Data Set Ready
9
Port 2 Clear To Send
27
Port 2 Clear To Send
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