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WAN Serial Port Configuration 48
Models 2603, 2621, and 2635 Getting Started Guide 5 • Serial Port Configuration
Time Slot Select. For a T1 using all 24 time slots enter 1-24, for fractional T1 enter in any format for example:
1,2,3,5; or 1-5,10-24. Any entry for timeslots above 24 will return an invalid-selection message.
Line Options: Fractional T1
Line Code: The 2603 uses B8Zs and AMI. B8Zs is the most widely used.
Line Build Out: Select from 100 0dB, 100 Ohm -7.5dB, 100 Ohm -15dB, and – 22.5dB. For CSU/DSU
application use 100 0dB option, consult your T1 service provider for more information.
FDL Mode: Options are ANSI-T1-403 and Fdl-none. Consult your T1 service provider if FDL is active on
your T1 link.
Clocking Mode: Internal, Receive Clock (network). In most applications clocking for the 2603 will be derived
from the T1 network, set the unit for Receive Recover unless instructed otherwise by your service provider.
Idle code: Enabled, Disabled. When enabled, the 2603 inserts idle codes (7E hex) on unused timeslots. Set this
option to ‘Disabled’ unless instructed otherwise.
Power Down: Normal, Powered Down. When powered down, T1/E1 transceiver input and output lines will
be set to high impedance to protect the device – set unit to “Normal” for regular operation.
After all options have been selected, click on the Configure and Activate button at the bottom of the screen.
Additionally, save the configuration in non-volatile memory by going to the System Configuration > Save menu.
This concludes the T1 interface configuration via the web browser, go to section “WAN Service Configura-
tion” on page 52 for instructions on router/bridge and WAN service configuration.
Configuring the IPLink Series 2603 for E1 Operation
Web Configuration. Launch Internet Explorer or similar web browser, type the IP address of the 2603, enter
username
superuser and password superuser. From the main page click on the T1/E1 > Configuration. (See
figure 25.)
Figure 25. E1 port configuration