Installing and Operating Passport ARN Routers
C-18
114200-E Rev 00
The connector pin assignment described in
Table C-15
shows signal and pin
assignments for the modem port.
Table C-15.
Service Modem Port DB-9 Pin Assignments
Pin Assignment
Pin No.
Signal Name
Direction
1
DCD (Data carrier detect)
From modem
2
TXD (Transmit data)
To modem
3
RXD (Receive data)
From modem
4
DSR (Data set ready)
From modem
5
GND N/A
6
DTR (Data terminal ready)
To modem
7
CTS (Clear to send)
From modem
8
RTS (Request to send)
To modem
9
Not used
N/A
Pin 1
Pin 9