
26 Chapter 6 EIA-232: RJ-45 to DB-25
Terminal/Printer Cable for Software (XON/XOFF) or Hardware (RTS/CTS)
Handshaking
Note: Some terminal or printer manufacturers may use different methods of
flow control. Consult your documentation for specific wiring
requirements.
RJ-45 8 pin to Modem (ALTPIN option)
The following table shows how to build an 8-wire modem cable using an 8
pin RJ-45 plug. This cable supports the Digi ALTPIN option when plugged
into a Digi RJ-45 serial port.
8-Wire Modem Cable Supporting ALTPIN Option
RJ-45 10 pin
(Digi End)
-
DB-25 Male
(Terminal/Printer)
Signal Pin Pin Signal
DSR+DCD*
* ALTPIN must be turned
off for DCD to be on pin
10
2+10 connected to 20 DTR
RTS 3 connected to 5 CTS
GND 4 connected (via shield) to Shell GND
TxD 5 connected to 3 RxD
RxD 6 connected to 2 TxD
SG 7 connected to 7 SG
CTS 8 connected to 4 RTS
DTR 9 connected to 6+8
DSR+D
CD
RJ-45
(Digi End)
DB-25 Male
(Modem End)
Signal Pin Pin Signal
DCD 1 connected to 8 DCD
RTS 2 connected to 4 RTS
GND 3 connected (via shield) to 1 (or shell) GND
RxD 5 connected to 3 RxD
TxD 4 connected to 2 TxD
SG 6 connected to 7 SG
CTS 7 connected to 5 CTS
DTR 8 connected to 20 DTR
Commentaires sur ces manuels