User's Manual Part 2

240 APCD-LM043-8.0 (DRAFT C)
Appendix G: CCU/EUM Data Tables
Registration Table (CCU only)
The Registration Table contains a list of all registered EUMs. The CCU automatically builds
and adds to this table as EUMs communicate with the CCU. Every EUM that registers with the
CCU appears in this table. The EUM will be removed from the Registration Table if the:
• EUM has not communicated with the CCU for more than 12 hours because:
• the EUM has been turned off for more than 12 hr., or
• the EUM has had no traffic to send for more than 12 hr., or
• the EUM has lost its RF connection to the CCU for more than 12 hr.
• EUM does not respond to traffic from the CCU. In this case, the EUM will be removed
immediately from the Registration Table.
The Registration Table contains the following entries:
Table 52 Registration Table Entries
NOTE:
The Rx-Octets, Rx-Packets, Tx-Octets, and Tx-Packets statistics
are identical to the RADIUS accounting statistics and may be
considered the appropriate usage statistics for billing purposes.
Table Entry Description
EUM ID EUM ID
GOS Class Grade of Service Class
RSSI (dBm) Radio received signal strength (RSSI) in dBm of the EUM.
SQ Signal quality, measured at the same time as the RSSI is
recorded.
RNA (dB) Difference between the RSSI and the measured noise
floor.
Time (s) Time since the last payload was received from the EUM.
Rx-Octets Number of octets received from this EUM in data payloads,
including Ethernet header but not radio MAC header.
Rx-Packets Number of Ethernet packets received from this EUM in
data payloads.
Tx-Octets Number of octets sent to this EUM in data payloads,
including Ethernet header but not radio MAC header.
Tx-Packets Number of Ethernet packets sent to this EUM in data
payloads.
Maximum Associations The maximum number of EUMs that can be
associated at
any one instant in time.
Deregistration Count An EUM will be de-registered if it does not respond after
the CCU has sent it this many consecutive polls.