Reference Manual
Table Of Contents
- RBS 2206 Reference Manual
- Contents
- Preface
- Product Safety Requirements RBS 2000
- Environmental Capabilities
- Scope
- Terminology
- References
- Transport -40 C - +70 C
- Storage -25 C - +55 C
- Handling -40 C - +70 C
- Operation Indoor +5 C - +40 C
- Operation Outdoor -33 C - +40 C
- Operation Outdoor -33 C - +45 C
- Operation Outdoor -33 C - +55 C
- Operation Mast Mounted Equipment -33 C - +45 C
- Operation Mast Mounted Equipment -33 C - +55 C
- Radio Configurations, RBS 2206
- Product Data
- Unit Description, DXU-21
- Unit Description, dTRU
- Unit Decription, CDU-G and CDU-F
- Unit Description, CXU-10
- Unit Description, FCU-01
- Unit Description, DC-Filter 01
- Unit Description, PSU 1200 W
- Unit Description, ACCU/DCCU
- Unit Description, IDM
- Broadcast
- Common Control Channel Handling
- Physical Channel Handling
- Speech and Data Services
- Packet Data Services
- Call Control
- References
- Channel Activation
- Adaptive Frame Alignment
- Asynchronous Handover Detection
- RF Channel Release
- Deactivate SACCH
- Link Establish Indication
- Link Release Indication
- Link Establishment Request
- Link Release Request
- Transparent Message Transmission
- Transparent Message Reception
- SACCH Info Modify
- LAPDm
- Channel Reactivation
- Power Information
- GPRS, Physical Link Layer
- Base Station Power Control
- Channel Measurements
- Discontinuous Transmission
- Frequency Hopping
- Encryption
- Mode Modify
- Mobile Station Power Control
- Short Message Service
- Diversity Supervision
- Synchronization
- Radio Reception
- Radio Transmission
- Frequency Allocation Support
- Restart and Recovery
- Function Change
- Functionality Administration
- Operation and Maintenance Support
- References
- Concepts
- Buttons
- Change RU to Local Mode
- Change RU to Remote Mode
- Change RU to Remote Mode Cancel
- Change SW Power Boost Slave RU to Local Mode
- Loop Control
- RF Loop Test Supervision
- Calendar Time Request
- RSSI Temperature Compensation
- Max Cooling
- Fault Indicator
- BS Fault Indicator
- Operational Indicator
- Tx Not Enabled Indicator
- Local Mode Indicator
- External Alarms Indicator
- DC Disconnected Indicator
- Battery Mode Indicator
- Bat Disconnected Indicator
- AC Fault Indicator
- Test Result Indicators (not used)
- Local Mode in Progress
- Installation Data Handling
- Self Test and Supervision
- Diagnostics and Fault Handling
- Operation and Maintenance Terminal
- External Alarms
- Handling of Auxiliary Equipment
- Climate Protection
- EMC Capabilities
- Transmission Interface Handling G.703 2048 kbit/s
- Transmission Interface Handling DS1 1544 kbit/s
- Terrestrial Link Handling
- Channel Distribution Function
- Transport network O&M functions-DXX Support
- BTS Parameter Limitations
- Glossary
Transmission Interface Handling DS1 1544 kbit/s
• Input jitter and wander tolerance according to AT&T Accunet
T1.5 Service 1990 (TR 62411). This tolerance is valid for PCM-A
and PCM-B respectively. The tolerance of relative phase
differance (that is, phase differance between PCM-A and PCM-B)
is 56 UI
PTP
•
Fault supervision of each PCM path is performed according to
− ANSI T1.403, section 9 (1995)
− AT&T T1.5, paragraph 7
This includes detection of the fault conditions LOF (Loss Of Frame),
LOS (Loss Of Signal), ERATE (Excessive error RATE), AIS (Alarm
Indication Signal, “Blue Alarm”), and RAI (Remote Alarm Indication).
It also includes a consequent action. The consequent action for the faults
LOF, LOS, ERATE, AIS and UAST (UnAvailable STate) downlink is
to send RAI patterns (...1111111100000000...) continuously on the 4
kbit/s link to the remote end. This is performed for at least one second.
Two PCM paths are supported: PCM-A and PCM-B.
48.3.2 Layer 1 Synchronization
Synchronization of the outgoing signals (on the transport network
interface) is according to AT&T T1.5 Service (TR 62411) dec. 1990,
chapter 6 “Synchronization and Timing”.
Synchronization of layer 1 is either derived from one of the incoming
PCM paths or taken from a free running oscillator. A PCM path
• with LOF (Loss Of Frame alignment), LOS (Loss Of Signal), AIS
(Alarm Indication Signal) or
• that is “not available for synchronization” according to a
parameter in RBS DB
cannot be used as reference source.
The synchronization of layer 1 is one of four states:
1. Both PCM-A and B can be used as reference source
PCM-A is selected as the reference source
PCM-A incoming is used to synchronize PCM-A outgoing
PCM-B incoming is used to synchronize PCM-B outgoing.
2. PCM-A can be used as reference source, PCM-B cannot
PCM-A is selected as the reference source
PCM-A incoming is used to synchronize PCM-A outgoing
PCM-A incoming is used to synchronize PCM-B outgoing.
3. PCM-B can be used as reference source, PCM-A cannot
PCM-B is selected as the reference source
PCM-B incoming is used to synchronize PCM-A outgoing
PCM-B incoming is used to synchronize PCM-B outgoing.
364 (421)
EN/LZT 720 0008 R1A
2001-06-26
© Ericsson Radio Systems AB
— All Rights Reserved —