User's Manual

ADCP-75-130 Issue 3C August 2006
Page 46
© 2006, ADC Telecommunications, Inc.
3. Check and record the Received Signal Strength Indication (RSSI) and any spurious
emission levels at and between all DRU antennas. Analyze all DRU’s and the DHU
interface using a spectrum analyzer.
4. Plot the RSSI levels on a floor plan of the building and check against the pre-installation
RSSI levels to determine the overall and average RSSI improvement attributed to the
Digivance ICS. Check the entire Digivance coverage area.
5. Verify call processing and voice quality within the coverage areas. Initiate and receive
multiple long and short duration calls. Document the performance and address any issues
as calls are processed within the entire coverage area. Assuming a properly functioning
server RF link and BTS and a properly designed and optimized ICS system, there should
be no clicks, mutes, clipping, or crackles within the coverage area. In a wireless office
application, hand off will not occur.
6. If the DHU interfaces with a local BTS (microcell), verify the handoff function by
placing a call and confirming handoffs between the Digivance/microcell coverage area
and the outdoor macrocell coverage area (macro system) and vice versa. The handoff
should take place without any noticeable call quality or performance issues.
7. If the DHU interfaces with a remote BTS through a donor antenna, verify call quality by
placing a call and then walking between the Digivance coverage area and an area
receiving good coverage directly from the cell site base station. There should be no
noticeable difference in call quality.
8. Following service provider guidelines, test the 411 and 911 links to verify the routing of
emergency and special services calls on local BTS configurations.
9. Verify that the alarm reporting system functions properly by turning the DHU off. This
should generate a major and minor alarm and operate both the major and minor alarm
contacts. Check for alarm confirmation from the service provider’s local switch and
Network Operations Center (NOC). Note that this tests only the external alarm system
and does not verify operation of the Digivance alarm reporting system.