User's Manual
Table Of Contents
- 1. Getting started
- 2. Introduction
- 3. Preparation
- 4. About the terminal
- 5. Mounting and installing the terminal
- 6. Connecting to the terminal
- 7. Managing the terminal
- 8. Configuring the terminal
- 9. Configuring the traffic interfaces
- 10. Cross Connections
- Embedded cross connect switch
- The Cross Connections application
- The Cross Connections system requirements
- Installing the Cross Connections application
- Opening the Cross Connections application
- The Cross Connections page
- Setting the terminal's address
- Management and user ethernet capacity
- Setting card types
- Getting cross connection configuration from the terminals
- Creating cross connections
- Sending cross connection configuration to the terminals
- Saving cross connection configurations
- Using existing cross connection configurations
- Printing the cross connection configuration
- Deleting cross connections
- Configuring the traffic cross connections
- Cross connection example
- Symmetrical Connection Wizard
- 11. Protected terminals
- 12. In-service commissioning
- What you will need
- Checking the antenna polarization
- Visually aligning antennas
- Accurately aligning the antennas
- Synchronizing the terminals
- Checking performance
- Checking the receive input level
- Checking the fade margin
- Checking long-term BER
- Bit Error Rate tests
- Additional tests
- Checking the link performance
- Viewing a summary of the link performance
- What you will need
- 13. Maintenance
- 14. Troubleshooting
- 15. Interface connections
- 16. Alarm types and sources
- 17. Country specific settings
- 18. Specifications
- Ethernet interface
- QJET Quad E1 / T1 interface
- Q4EM Quad 4 wire E&M interface
- DFXO Dual foreign exchange office interface
- DFXS Dual foreign exchange subscriber interface
- QV24 Quad V.24 asynchronous data interface
- HSS Single high speed synchronous data interface
- External alarm interfaces
- Auxiliary interfaces
- AC Power supply
- DC Power supply
- Power consumption
- MHSB protection
- Ethernet interface
- 19. Product end of life
- 20. Abbreviations
- 21. Acknowledgments and licensing
- 22. Commissioning Forms
- 23. Index

Specifications | 253
MHSB specifications
MHSB protection
RF switch TX relay loss
≈ 1.5 dB
Splitter loss
≈ 3.5 dB
Switching time < 25 ms seconds from detection of alarm condition
RF path restore time < 10 seconds
Tributary switch Ports 8
General specifications
Environmental
Operating range -10 to +50˚ C
Storage range -20 to +70˚ C
Humidity Maximum 95% non-condensing
Altitude Up to 5000 metres
Mechanical
19-inch rack mount 2 U high (internal duplexer)
3 U high (external duplexer)
Width 434 mm (without mounting brackets attached)
483 mm (with mounting brackets attached)
Height 88 mm
Depth 372 mm
Colour Pure black
Weight ≈ 8 kg (per terminal)
ETSI performance
Radio EN 301 751, EN 300 630
EN 302 217 Parts 1, 2.1, and 2.2
EMI/EMC EN 301 489 Parts 1 & 4
Safety EN 60950
Environmental ETS 300 019 Class 3.2