Connect Tech Blue Heat/PCI PCI Serial Communications - page 30

Blue Heat/PCI User’s Manual, Connect Tech Inc.
Revision 0.11 30
Figure 10: RJ-45 Connector Plug
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8 7 5 6
Table 10: RJ-45 pinouts, RJ-45 connector plug
Pin
No.
RS-232
Signal Direction
RS-422/485
Signal Direction 20mA Direction
1 RI input CTS (+) input RxD
Source
input
2 DSR input CTS (-) input RxD Return input
3 RTS output RTS (-) output TxD (-) output
4 SG signal gnd. FG frame gnd. FG frame gnd.
5 TxD output TxD (-) output TxD Source output
6 RxD input TxD (+) output TxD (+) output
7 Gnd ground Gnd ground Sig. Gnd. signal gnd.
8 CTS input RTS (+) output RxD(+) input
9 DTR output RxD (-) input TxD Return output
10 DCD input RxD (+) input RxD (-) input
RJ-45 Connector
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