Signal strength indicators
Digi TransPort User Guide 81
25-Pin to 9-Pin straight through cable
This cable is normally used to connect a V.24 asynchronous terminal, such as a PC to a Digi 
router.
RJ45 to 25-Pin straight through cable
This cable is normally used to connect a V.24 synchronous terminal to a Digi router.
DB 25-Digi Side DB 9
Signal Pin # (DCE) Pin # (DTE) Signal
Frame Ground (Case) Shield Shield Frame Ground (Case)
TxD 23TxD
RxD 32RxD
RTS 47RTS
CTS 58CTS
DSR 66DSR
GND 75GND
DCD 81DCD
DTR 20 4 DTR
RING 22 9 RING
RJ45-Digi Side DB 25
Signal Pin # (DCE) Pin # (DTE) Signal
RTS 14RTS
DTR 2 20 DTR
RxD 33RxD
GND 57GND
TxD 62TxD
DCD 78DCD
CTS 85CTS