User's Manual Part 2

RBS 2109 User’s Guide
2. If there is no information about the transmission interface type in the Site
Installation Documentation, use the cable length to find the appropriate
section in the table below.
Table 33 Selecting Section for Defining T1, Cable Length Known
If... then...
the cable length is less than 655 feet go to Section Defining LBO
Parameters as Short Haul on
Page 120.
the signal level at the
customer interface and the
cable attenuation is known
go to Section Defining LBO
Parameters as Long Haul
Manually on Page 123.
only the maximum input
signal level at the far end is
known
go to Section Defining LBO
Parameters as Long Haul
Automatically on Page 127.
the cable
length is
more than
655 feet
and...
neither the signal level at the
customer interface nor the
cable attenuation are known
go to Section Defining
LBO Parameters when
Transmission Characteristics
are Unknown on Page 133.
3. If no information is given in Site Installation Documentation, see the table
below.
Table 34 Selecting Section for Defining T1, Cable Length Unknown
If... then...
there is no information about the
cable length
go to Section Defining LBO Parameters
when Transmission Characteristics are
Unknown on Page 133.
Defining LBO Parameters as Short Haul
This section describes how to define the LBO parameters as short haul.
1. On the Configuration menu, click Define and PCM to open the Define
PCM window. See figure below.
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N/LZT 720 0090 Uen R1A 2004-09-17