User Manual

ADCP-75-192 • Issue 1 • December 2005 • Section 6: Autonomous Software Functionality
Page 6-2
 2005, ADC Telecommunications, Inc.
3 REVERSE AUTOMATIC GAIN CONTROL
The Digivance CXD system autolimits any strong in-band signal which reaches the RAN at a
peak input level of greater than -38 dBm relative to the antenna port. The process does this by
monitoring A/D overflows and adding attenuation in the RDC when these overflow occur.
“AGC events” are logged on the CPU running the RDC process. Attenuation is backed out as
the signal strength subsides.
4 FORWARD DELAY MANAGEMENT
Forward Delay Management (FDM) is a software function that is part of Tenant Processing
and whose responsibility is to equalize the path delays to all RANs in a simulcast group. The
FDM process is "enabled" in the Tenant OAM MIB (see Section 3, Sub-Section 7 Tenant
Configuration).
5 REVERSE DELAY MANAGEMENT
Reverse Delay Management (RDM) is a software function that is part of Tenant Processing
and whose responsibility is to equalize the path delays to all RANs in a simulcast group. The
RDM process is "enabled" in the Tenant OAM MIB (see Section 3, Sub-Section 7 Tenant
Configuration).
6 FORWARD CONTINUITY
Forward Continuity Management (FCM) is a software function that may be used to verify that
the forward RF paths are functioning properly and are able to pass signals. This function is
disabled by default.
7 REVERSE CONTINUITY
Reverse Continuity Management (RCM) is a software function that is a subset of Tenant
Processing and is responsible for verifying that the reverse RF paths for each tenant-sector are
functioning properly and are able to pass signals. This function is enabled by default.
The various parts of RCM are defined in the sections that follow.