Installation Manual
Table Of Contents
- WAVEXpress/BTS Installation and Commissioning Guide
- One - Unpacking the WAVEXpress/BTS
- Two - Internal BTS Cabling and Jumpering
- Three - Installation
- 3-1 Wall Installation
- 3-2 Table Mount
- 3-3 Rack Installation
- 3-4 Common Final Installation Procedures
- 3-4.1 Connection of the Cable Gland
- 3-4.2 Connection of the Grounding Cable
- 3-4.3 Connection of the Antennas to the Bulkhead Plate
- 3-4.4 Connection of the Optional Combiner Assembly
- 3-4.5 Connection of the Power Supply
- 3-4.6 Connection of the T1 Lines
- 3-4.7 Connection to External Alarms
- 3-4.8 Optional Voltage Standing Wave Ratio (VSWR) Check
- 3-4.9 Post Installation Checks
- 3-5 Outdoor Installation
- Four - Off-Line Commissioning
- Five - Off-Line Commissioning of a Daisy Chain
- Six - Post Off-Line Commissioning
- Seven - On-Line Commissioning
- Appendix 1 - Connection of the Combiner Assembly
- Appendix 2 - BTS Field Maintenance
- A2-1 WAVEXpress/BTS Field Replacement Maintenance
- A2-1.1 Replacing the WAVEXpress/BTS IWP card
- A2-1.2 Replacing the WAVEXpress/BTS T1 card
- A2-1.3 Replacing the WAVEXpress/BTS TRX card
- A2-1.4 Replacing the WAVEXpress/BTS RF distribution card
- A2-1.5 Replacing the clock module
- A2-1.6 Replacing power supply units
- A2-1.7 Replacing fan assemblies
- A2-1.8 Replacing filters (p/n 520081-01)
- A2-1.9 Replacing the antenna bracket with a combiner assembly
- A2-1 WAVEXpress/BTS Field Replacement Maintenance
- Checklist 1 - Installation Checklist
- Checklist 2 - Commissioning Checklist
Release 3.3, Revision A 1/99
BTS Field Maintenance 123
A2-1.9 Replacing the antenna bracket with a combiner assembly
This section contains the procedures for replacing the antenna bracket with a combiner assembly kit on the
WAVEXpress/BTS. The combiner assembly kit can be used to enable a single antenna to serve two TRXs on the
WAVEXpress/BTS by combining the outputs of the two TRX cards into a single feed. This configuration offers full
transmission and receiver sensitivity, but reduces power output by 4dB per channel and has no capability for receiver
diversity.
To replace the antenna bracket with a combiner assembly, the standard antenna bracket needs to removed and
replaced with the combiner antenna bracket by completing the following steps:
If the combiner assembly is to be installed in the field, all that needs to be done is to swap out the standard antenna
bracket and replace it with the combiner antenna bracket. Note that this modified bracket is shipped with the combiner
assembly already mounted on the bracket. Instructions on how to swap antenna brackets are as follows:
Removing the WAVEXpress/BTS antenna bracket
Step 1
Remove the cable gland from the antenna bracket.
Step 2
Using a torque wrench, remove the two SMA cables leading from the antenna bracket to the RF distri-
bution card.
• Remove cable 1 connected from the port labeled “-1-” on the RF Dist module to the right-hand
antenna connector on the antenna bracket (front view).
• Remove cable 2 connected from the port labeled “-2-” on the RF Dist module to the middle
antenna connector on the antenna bracket (front view).
Step 3
The antenna bracket is placed over two threaded studs located on the top of the WAVEXpress/BTS.
The bracket is locked in position using nuts threaded over these studs and attached to the front of the
WAVEXpress/BTS using 4 10-32 screws. To remove the antenna bracket, unscrew the 4 10-32 screws
holding the antenna bracket to the front of the WAVEXpress (refer to the following illustration):