User's Manual Part 2

RBS 2308 and RBS 2309 User’s Guide
Table 38 Selecting Section for Defining T1, Knowing the Transmission
Interface Type
If the transmission interface
type is...
Then...
DSX-1 go to Section Defining L BO
Parameters as Short Haul on
Page 130.
the signal level at the custom
er
interfac e an d th e cab le at te
nuation
is kno w n
go t o Section Defining LBO
Parameters as Long Haul
Manually on Page 132.
only the maximum input signal
level at the far end is known
go t o Section Defining LBO
Parameters as Long Haul
Automatically on Page 13
4
.
DS1 and...
neither the signal level at the
customer interface nor the cable
attenuation are known
go t o Section Defining LBO
Parameters when Transmission
Characteristics are Unknown on
Page 138.
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 39 Selecting Section for Defining T1, Knowing the Cable Length
If...
Then...
the cable length is less than 655 feet go to Se ction Defining LBO
Parameters as Short Haul on
Page 130.
the signal lev el
at the custom er
interface and t
he cable
attenuation is
known
go to Section Defining LB O
Parameters as Long Haul
Manually on Page 132.
only the maximum input signal
level at the far end is known
go to Section D
efining LBO
Parameters a
s Long Haul
Automatical
ly on Page 134.
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 LB O
Parameters when Transmission
Characteristics are Unk now n o n
Page 138.
3. If no information is given in Site Installation Documentation, see the table
below.
1
29
EN
/LZT 720 0027 Uen R8A 2006-06-27