User manual
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GPRS/EDGE/UMTS routers MG101, MG102
3. Jul 2009
A
Appendix: Connectors and Cables
A.1
Pin Assignments for the Communication Interfaces
A.1.1
Serial Plug (COM; Sub-D 9pol)
Figure 1: Sub-D 9pol plug female
Interface:
COM (RS 232)
Plug type:
Sub-D 9pol; female
Pin:
Signal:
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
Table 1: Pin assignment COM interface RS232
Interface:
COM (RS 485)
Plug type:
Sub-D 9pol; female
Pin:
Signal:
3 (MG101)
9 (MG102)
RxD/TxD+
5
GND
8
RxD/TxD-
Table 2: Pin assignment COM interface RS485
Note: Do not use pins that are not listed here!
Содержание MG101
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