16
PA-2JT2 6.3-MHz Serial Port Adapter Installation and Configuration
OL-3587-01
VIP2 and the JT2 Port Adapter
Figure 11
Connecting 75-Ohm Coaxial BNC Cables to a DSU and Setting the DSU’s External Ground
Step 4
Repeat Steps 1 through 3 for the additional JT2 interface as required.
This completes the procedure for attaching cables to the JT2 port adapter and an external B-type or
C-type DSU.
Configuring the JT2 Interfaces
If you installed a new JT2 port adapter or if you want to change the configuration of an existing interface,
you must enter configuration mode using the
configure
command. If you replaced a JT2 port adapter
that was previously configured, the system will recognize the new JT2 interfaces and bring them up in
their existing configuration.
After you verify that the new JT2 port adapter is installed correctly (the enabled LED goes on), use the
privileged-level
configure
command to configure the new interfaces. Be prepared with the information
you will need, such as the following:
•
Protocols you plan to route on each new interface
•
Internet protocol (IP) addresses if you plan to configure the interfaces for IP routing
•
Whether the new interfaces will use bridging
For a summary of the configuration options available and additional instructions for configuring the JT2
interfaces on the JT2 port adapter, refer to the appropriate configuration publications listed in the section
“
The
configure
command requires privileged-level access to the EXEC command interpreter, which
usually requires a password. Contact your system administrator if necessary to obtain EXEC-level
access.
Interface Processor Slot, Port Adapter Slot, and JT2 Interface Port Numbering
This section describes how to identify interface processor slot, port adapter slot, and interface port
numbers.
H9701
DSU
External
Ground
Internal
Ground
TX
RX
Ensure that external ground is
selected on your DSU
To JT2 port
adapter's TX port
To JT2 port
adapter's RX port
BNC cables
