K3 1RU AB Switch Page 6
Serial Port
The Serial Port on the control card is a 9 pin male connector, configured as a DTE. The following pins
are used. The following chart illustrates the pin out of the D9 connector and the connection required to
an external modem with a D25 pinout.
D9 Pin Abbreviation Full Name Modem
D25 Pin
Pin 2 RD Receive Data Pin 3
Pin 3 TD Transmit Data Pin 2
Pin 5 SG Signal Ground Pin 7
Pin 9 RI Ring Indicator Pin 22
For connection directly to a terminal, a Null Modem cable is required.
C-AB-16-R
D9 Pin Terminal
D9 Pin
Pin 3 Pin 2
Pin 2 Pin 3
Pin 5 Pin 5
Configuration – C-AB-16-R
Configuration of the The C-AB-16-R involves the following steps:
• Setting The C-AB-16-R 's IP Address
• Setting additional configuration parameters using Telnet
Setting I/P Address
The C-AB-16-R comes with factory installed IP address 192.168.1.254. In most cases this will need to
be changed.
Consult your Network Administrator to determine the appropriate IP address. There are several methods
to change the IP address.
• ARP
• Telnet
• Serial Port
• setip.exe program, available from Dataprobe’s web site
To set the IP address, the hardware (MAC) address must be known. This address is located on a label
on on the C-AB-16-R printed circuit board. The syntax for the MAC address is: nn-nn-nn-nn-nn-nn