- This topic has 7 replies, 1 voice, and was last updated 14 years, 5 months ago by Briny.
1st November 2006 at 10:11 #46067sanyaGuest
I have a problems with start the base station(UltraSite).
Soft was loaded successfully, and commission was made.
Transmission equipment works without mistake.
But OMU link unstable state – each two minutes are actuated alarm:
BTS O&M LINK FAILURE.
Can anyone help me.
Thanks1st November 2006 at 18:12 #46068PixGuest
O&M is either linked to:
1. The Abis link (you said it is okay ? sure ?)
2. The SUM card in the BTS
3. The TCUC card in the BSC
4. all connectors in between…6th November 2006 at 07:55 #46069kishanGuest
I want know about in E1,that I mean why its say E1,why not say eg.(H1 or something).6th November 2006 at 13:22 #46070PatrickGuest
is your BTS is directly connected on ET? (Not DN2 between BTS and BSC)
if it is that case:
check your ET quality signal
A perfect PCM is:
100% EFS local and remote
UNIT START TIME
ET-52 2006-11-06 00:00
DISTTYPE COUNTER LIMITS (MS)
10-50 50-200 200-1000 1000-
NOINSGN 0 0 0 0
FALOST 0 0 0 0
AIS 0 0 0 0
REMOTE 0 0 0 0
FRAME ALIGNMENT SIGNAL ERRORS:
COUNTER LIMITS (ERRORS/ 5 SEC)
1-39 40-79 80-159 160-
0 0 0 0
CRC PERFORMANCE MONITORING:
TOTAL AVAIL UNAVAIL
TIME TIME TIME
LOCAL END 14:17:22 14:17:22 00:00:00
REMOTE END 14:17:22 14:17:22 00:00:00
(%) EFS ES SES DM
LOCAL END 100.00 0.00 0.00 0.00
REMOTE END 100.00 0.00 0.00 0.008th November 2006 at 18:28 #46071BrinyGuest
If there is no radio alarms (thats on the link) then I suggest you look internally for the fault on the BTS.
I would also check that the timing is set to the 2 megs source and not internally.13th November 2006 at 05:59 #46072sanyaGuest
thank you all for your answers!!!
problem is solved by reloading soft on base station.
I think that at moment of the first loading soft was damaged because transmission was not stable
…..but alarms was not (on BOI)..
excuse me for my english13th November 2006 at 07:38 #46073Ramajayam CYRGuest
i thing your fresher to Telecom
E1 – Eroupian standard 1 PCM = 2 mbps
another one is there that name is T1
T1 – American standard = 1.5 mbps13th November 2006 at 20:51 #46074BrinyGuest
no problem sanya we are to help each other.