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TPM
SPC-3000 User Manual
54
5.6.3. COM 3/4 and 5/6 Serial Port
Figure 5-18:
Serial Port
Serial ports 3, 4, 5 and 6 have combined in a male DB15 connector. Users can use the Y-type cable to
convert the 15-pin D-Sub connector into two 9-pin D-Sub connectors to connect both COM3/COM5 and
COM4/COM6 at the same time. Please refer to “
Appendix E.2
” for the Y-type cable of COM 3/4 and 5/6.
The pin assignments are shown in the following table:
COM Port
Pin NO.
RS-232
RS-422 (4-Wire)
RS-485 (2-Wire)
3/5
(Isolated)
1
DCD
---
---
2
RXD
---
---
3
TXD
---
---
4
DTR
---
---
5
GND
---
---
6
DSR
---
---
7
RTS
---
---
8
CTS
---
---
9
RI
---
---
10
---
---
---
COM Port
Pin NO.
RS-232
RS-422 (4-Wire)
RS-485 (2-Wire)
4/6
(Isolated)
11
RXD
---
---
12
TXD
---
---
13
RTS
---
---
14
CTS
---
---
15
GND
---
---
Figure 5-19:
Pin Definition of COM 3/4 and 5/6 Serial Port
11
15
1
5