Air Sync; Sync Lost Counter In Ipbs - ASCOM IPBS Installation And Operation Manual

Installation and Operation Manual
IP-DECT Base Station & IP-DECT Gateway (software version 5.0.x)
Sync Offset
Cable Delay
Sync Lost Counter The number of times synchronization lost.
Communication
Connected to
Tx Error
Rx Error

8.10.5 Air Sync

This section only applies to the IPBS.
Air Sync status is displayed in the Device Overview > Air Sync menu. For explanation on
the information shown for the active and the alternative sync bearers, see the table below.
Figure 27.
RFPI
Carrier
Slot
Hop
RSSI
FER

8.10.6 Sync Lost Counter in IPBS

This section will describe briefly the different situations when the "sync lost counter" is
incremented and what impact it has for the users.
Sync Lost Counter
When an IPBS increments the sync lost counter it means that the IPBS stops to handle all
radio traffic for a while and after that restarts the synchronization procedure. The radio
part is not really restarted but out of service for a short time period. The IP-part of the IPBS
is not affected by this but is in service all the time.
There are five reasons for when the sync lost counter is incremented:
• The IPBS has not been able to find a synchronization source within 9 minutes.
• The PSCN value is changed.
• The value for frame number is changed.
• The value for multi frame number is changed.
• The number of enabled carriers is changed.
If the PSCN, frame number, multi frame number and/or the number of enabled carriers is
changed, then the radio stops to handle traffic immediately.
15 February 2012 / Ver. H
The synchronization offset for the IPBL.
The delay caused by the cable.
The present status of communication.
The IP address of the IPBL connected.
The number of transmitting errors.
The number of receiving errors
Radio Fixed Part Identity is the Id number of the sync bearer.
The carrier used for air synchronization
The slot used for air synchronization
The number of hops from the Sync Master to the sync bearer
Received Signal Strength Indication
Frame Error Rate, a value between 0 and 100%. Should be
below 80% to be able to keep the synchronization.
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