User Manual

SGD-SB2025NT-TUM, Part 1
Jan 12 Page 42 ALIGNMENT & TESTING
1.1. Ensure that the power is switched off.
1.2. Refer to Appendix D and check that all the internal links are set correctly.
1.3. Check that the T36 External Reference option is correctly configured.
2. Using the T36 Module Serial cable, connect the PC with the HyperTerminal software or
similar serial communications program installed to the pin header HDR1 on the T36 Module
in the SB2025 base station.
3. Connect the Tx antenna connector to the RTS input.
4. On the PC, set the serial communications parameters to: 9600, 8, None, 1, None.
5. On the NI ET main window, check that the NI is not outputting any audio or tones by carrying
out the following:
5.1. Select the ‘Eng’ button to access the ‘NI Engineering’ window.
5.2. On the NI Engineering window, select the ‘Facilities’ tab.
5.3. On the ‘Facilities’ tab, check that the ‘Test Tone’ is disabled and that the ‘CTCSS Tone’
level is set to 0 (zero) (slider to minimum).
6. On the MxTools main window, on the tool bar, select the Channel Info icon. The Channel
screen will be displayed.
7. From the MxTools Channel screen, access the Channel Edit window and enter all of the
frequency pairs that are required for the SB2025 base station and select a channel in the
middle of the range of frequencies.
8. On the SB2025 base station, switch on the power and, on the PC, check that the following
HyperTerminal menu as shown below in Figure 5 is displayed.
Figure 5. HyperTerminal – Menu.
9. On the PC, using the HyperTerminal, carry out the following:
9.1. If not already set, adjust the ‘Tx Freq’ to the Tx frequency of the channel in use.
9.2. Ensure AF Coupling is set to AC. If necessary, press ‘6’ to toggle it.