3. The BTS commissioning & SW files are stored on the station unit module
(SUMA)
The Station unit module is the core of the BTS ,it is responsible for
• The O&M Functions such as Alarms reporting ,BTS Configuration,
internal Power Supply control & clock generation and distribution
• Transmission functions by connecting the BTS to the BSC through the
ABIS cable.
The ABIS can carry up to 32 time slots
• 0 to 30 are assigned to the TRES for normal traffic(voice and Data
services)
• 31 : is assigned to the OMU in the SUMA card for signaling (Control
information) between BSC & BTS such as Alarm reporting ,BTS
Master file Download, configuration files etc..
4. LED Color Status Description
OML Yellow On BTS is supervised and connected to the BSC
Blinking BTS & BSC link is being established
Off Link disconnected.
ABIS Yellow On Abis 1 is connected and can serve TCH/Signaling
Blinking There are Alarms on the ABIS
Off Not configured or not used.
O&M Yellow On SUMA master file & configuration are present in the
EPROM
Blinking In a transient state, SUMA is loading the BTS MSF &
Configuration file from the BSC
Off Not used.
FAUL
T
RED On Fatal alarm on BTS Module (ANC,TRE etc ..)
Blinking Non-fatal alarm. Such as Faulty Fan unit
Off No alarm.
SUMA card led status indication
13. • Wait for the BTS to download all the files ,During the SW
Download the Suma LED Status will be :
OML ,ABIS & O&M Flashing
last file to be downloaded is the OCPF 002 file after that the O&M
will be solid
17. • Notice that the status of the commissioning changed from not
running to running
18. • Edit Q1 address by clicking its start button
19. • Edit Remote Inventory by clicking its start button and press
YES : if the update is already done in the Remote Inventory
panels
NO : if the update is not done in the Remote Inventory panels
20. • Edit Sector Mapping by clicking its start button
Assign sector-ID to each combiner and then press ok
21. • Edit Twin-Settings by clicking its start button
Choose the mode of each Twin-TRE , usually in our network
we leave at the default which is Dual TRE
22. • Hardware check by clicking its start button
the Suma card will start to check the HW available inside
the BTS through the RI-Cable
23. • INIT _ALL_SECT by clicking its start button
the SUMA card will power on all the combiners and TRES to
check their operation
24. Choose End commissioning ,Stop commissioning window will appear
choose ok after moving all the modules in the selected module window
Wait for the BTS to restart itself SW and then connect the Abis cable.
25. • Finally restart the BTS HW
the SUMA led status should be as following :
Abis & OML are solid
O&M Flashing as the BTS loading its data and RSLs from the BSC
26. • The loading process will take 15 to 20 Minutes ,after that the
O&M Led will be solid and the SUMA will initialize the
BTS sectors (Combiners & TRES)
27. • The BTS Terminal program will start to load the BTS Data
Take snapshots and check with OMC
Twin TRE can operate in 3 different modes
1)Dual TRE : it operates as 2 Single TRES ,each can belong to different sector and be assigned its own frequencies
2)Single TRE with TX DIV : both TRES are sending the same information ,having the same configuration (Sector mapping frequencies),send the information twice to have redundancy in case of TRE failure.
3)Single TRE with no TX DIV : Acts like a single TRE
If the ABIS Led was off tighten the ABIS cable connector or restart the BTS HW one more time
If the OML was off or flashing check the OMU time slot & the Qmux address
if the loading process took longer than 20 Minutes ,call the Support Engineer and check on the O&M status if it is loading or not ,if not ask him to Lock and unlock the Abis to allow the O&M to load.