Specifications

Table Of Contents
Chapter 9 Pinout reference 105
RJ-45 (Altpin on) to DB-9M modem cable
The table shows the wiring diagram for an EIA-232 RJ-45 8-pin connector,
with Altpin on, to a DB-9 modem cable.
From
RJ-45
Signal Direction Signal To DB-9
1 DCD DCD 1
5 RxD
RxD 2
4 TxD
TxD 3
8 DTR
DTR 4
6SG
SG 5
2 RTS
RTS 7
7 CTS
CTS 8
3 GND
GND Shell
* Arrows indicate which direction the signal is flowing
NOTES:
Altpin should be turned on when using this cable.
This cable utilizes the CTS signal of the modem for hardware flow control (RTS/CTS).