User's Manual
Table Of Contents
- Installation
- Overview AS4000
- Overview AS4020
- Preparation
- Rack Installation
- AS4000 AC Rack Cabling and Wiring
- AS4000 CT Shelf Cabling and Wiring
- _
- Expansion Rack Cabling
- Setup and Test
- System Testing
- AS4000 AC Setup and Test
- Access Concentrator: Turn-Up and DC measurements
- Setting Up the Access Concentrator
- _
- Setting the TEI and Baud Rate for Netspan Connection
- Creating AC Shelf/Rack on Sitespan
- Setting up AC Rack and Shelf configuration
- Configure AC Cards
- Configure AC Shelf properties
- Check Boot Sequence
- Alarm and Status Indications (Test 3)
- Self Test (Test 4)
- Test CTU cabling to the DDF E1 Cards
- Test CTU cabling to the Distribution Frame (DDF) GR303 Cards.
- Test XTU cabling to the DDF
- Connecting the AC to the Network
- Connect E1s/T1s to the Switch or Cross-Connect at the DDF
- Access Concentrator Rack Commissioning Test Results
- AS4000 CT Setup and Test
- AS4020 CT Setup and Test
- _
- General
- Repair and Return Procedure
- Repair Charges
- Return & Repair Tag
- Packing and Shipment
- Glossary
- Index
Printed Documentation
124
Test Set-up
2. Measure and calibrate the loss of all components as per diagram above:
3. Measure (1)A-B, (2)B-C, (3)C-D and (7)D-E.
4. Enter values in calibration chart for the relevant frequency.
5. Calculate/determine overall path loss and required ST output power and hence
required power meter reading.
6. Connect cables as per diagram above.
7. Ensure that the commissioning button is off. This resets the DTU card, reactivates
RW14&15 for link acquisition, and sets all RWs in service
8. Create ST on AC ST list
9. Configure test ST using AS7020STMON according to modem shelf properties to the
correct frequency, PN code and ID number.
10. Allow test ST to acquire link and Net Enter to “warm” state
11. From ST properties, set loopback mode to enable 160k high rate operation
12. Measure ST TX o/p level
13. On Modem Shelf Properties, set RX gain to achieve required ST o/p level as
calculated in step 4 for –98dBm receiver sensitivity
Note: To start with, set the RX gain to around 2200 and click right mouse
button at the side of the RX Gain Box to increase and decrease reading at the
power meter. Check the output power of the ST, and repeat until the output
power reaches the required level
14. Record results in test results sheet