2/ LZN 91 Tools and Instruments 3 RBS Maintenance Manual all other Ericsson products using the product number to identify each product. The manual is intended as an overview of the Ericsson RBS .. as well as the indoor version RBS will be given in the. We have RBS DXUA BOE 14/1 R16B in stock. RBS is an indoor macro base station, we have all version in this store. If you need more.

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Possible reasons The 13 MHz oscillator in DXU is ageing and therefore its control value is drifting outside the authorised range. Heat sinks containing Beryllium, are individually packed when new.

After approximately 30 seconds, the unit should function without alarm. BS fault indicator status? Wait 10 minutes before a new measurement is made.

Disconnect the battery back-up to the RBS. One or more faults are detected in the RBS.

GSM BOE 14/1 R16B RBS Ericsson BTS base station DXUA all tested – telecommunicationbts

Remove the faulty HL cable that is connected between the master and extension cabinets. This is l most common with Base band hopping, but does also occur under special circumstances with Synthesize hopping.


This procedure only applies to DXU—03 and system release R7 and on. If not, change the terminator. This indicates that the TRU s are in remote mode. This is done by preforming step 5.

Check that the cable connector as well as the matching connector in the PSU is not burned or mechanically damaged. The difference in the legends occur between: Connect a multimeter to the U OUT test point and check the fricsson. New sub-boards can be taken from the spare part “Overvoltage arrester board” of the OVP box.

Make a test call: Remove the three screws from the IDM panel and lower it. The pencil marks made earlier will assist with alignment. Remove the fan clamp that holds the fan in place. Make sure that the TRUs are in remote mode, that is, the Local mode indicator is off. Hand it over to your supervisor in exchange for a functioning tool. Reduce the risk of accidents by studying all the instructions carefully before starting work.

PSU -48 Ericsson BTS GSM

They are safe to handle provided they are not damaged. The flowcharts in this chapter are for reference only.

The safety information ericssom this manual is a supplement to local regulations. The fault indicator on the CDU will still be lit. Unless under contractual warranty, after replacement, the CDU bus cables shall be disposed of locally.


See the section “Batteries” in the chapter “Corrective Action” for replacement instructions. The software- download procedure is indicated by a flashing Operational indicator and may take some time up to 10 minutes.

All routines shall be performed with power off unless specifically stated otherwise. The CDU is powered off or faulty. We have strict QC before shipment and we provide a day warranty. This type of accident may be fatal or cause serious injury. If the external alarm indicator on the DXU goes off, there is probably something wrong with the external alarm sensor cables. Therefore, the DC supply will only last ericsspn a limited time.

If supplied Isolate the cabinet from the AC mains power at the connection field located on plate B. Set all units to remote mode.

Insert the sub-rack and the duct as a single unit. Check that the terminators are placed according the figures above. Preventive maintenance routines Except for the checklist provided, there are no specific preventive maintenance routines for the battery system for first line maintenance.

There are two groups under this RU: