User's Manual Part 2

RBS 2308 and RBS 2309 User’s Guide
Defining LBO Param
eters as Long Haul Manually
This section descr
ibes how to define LBO as long haul, when the signal level at
the customer i nter
face and the cable attenuation is known.
Signal level at the customer interface m eans either the maximum input signal
level at the Far End, or the carrier-advised code at the network interface. See
figure below.
P008431B
Customer Interface
(Far End/Network
Interface)
RBS
Cable attenuation
Maximum input
signal level/Carrier
advised code
A(C) B(D)
Figure 56 System Parameters for Defining LBO Parameters to Long Haul
1. On the Configuration menu, click Define and PCM.
2. Set the parameters according to the table and instructions below.
3. Click OK when all parameters are set.
Table 43 Manual PCM Parameters Settings for Transmission Interface T1,
Long Haul
PCM Parameter Settings
Transmission Interface DS1(T1)
Network Topology
See Site Installation Documentation
Sync Source See Site Installation Documentation
LBO A
LBO B
LBO C
LBO D
See instructions below
FDL Use
See Site Installation Documentation
The instructions below describe how to manually set the LBO parameters to
long haul.
1. If the carrier-advised code is given in the Site Installation Documentation,
use the table below to set the correct A (B, C, D) LBO parameters.
If multidrop is used, calculate the attenuation of the entire RBS chain, since
LBO A (C) is determined by the total attenuation of the chain from port A
(C) to the Customer Interface.
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EN/LZT 720 0027 Uen R8A 2006-06-27