3com S27x User Manual

Channelized Data 

5-3

Before you can use the Channelized Data option on your PathBuilder S24x, 26x, and 
27x switch, you must configure the node for Channelized Data operation. This 
section describes how to set up your PathBuilder S24x, 26x, and 27x switch for 
Channelized Data operation.

Refer to the following list to make sure you have everything you need before you 
begin to configure the Channelized Data option:

• Install a T1/E1 card in slot 8 on your PathBuilder S24x, 26x, and 27x switch. 

• If you want to pass both voice and data traffic, or just data traffic, make sure a 

2 Mbps T1/E1 card is installed properly in slot 8 on your PathBuilder S24x, 
26x, and 27x switch. If you want to pass voice traffic only, you can use a 512 
kbps T1/E1 card. 

• Obtain the timeslot information from your network service provider. The 

timeslot information is needed to configure virtual ports for all your remote 
connections.

• Install the software release containing the Channelized Data option in your 

PathBuilder S24x, 26x, and 27x switch.

• Make a CTP connection to the CTP port on your PathBuilder S24x, 26x, and 

27x switch and begin to configure the Channelized Data option.

For Frame Relay applications, you must configure a port and a station for every 
timeslot with a unique destination.

You need to configure the following records and tables in your PathBuilder S24x, 
26x, and 27x switch to perform Channelized Data operation:

Port record

This sets up the physical T1/E1 ports on 
the PathBuilder S24x, 26x, and 27x 
switch performing Channelized Data. 
See the “Configuring T1 and E1 Physi-
cal Ports” section on page 5-5.

Virtual Port Record (for each remote 
connection)

This sets up a Virtual Port Record entry 
for each connection between the Path-
Builder S24x, 26x, and 27x switch and a 
remote node. See the “Configuring Vir-
tual Ports on the PathBuilder S24x, 26x, 
and 27x Switch” section on page 5-18.

Virtual Port Mapping Table

This sets up a timeslot for each 
connection between the PathBuilder 
S24x, 26x, and 27x switch and the 
remote nodes. Refer to the “Configuring 
Virtual Port Mapping Table” section on 
page 5-20.