OS-1933-E3-003 OS System Configuration
Activate Rectifier Modules
Table 3-4 Activate Rectifier Modules
Step Action
1 Select the System/Configuration Page. See Figure 3-15.
2 Using the pull-down menus in the Rectifier/Installed section, choose YES to activate the
3 Choose SUBMIT to accept and apply the changes. To abort changes choose another page
Rectifier Modules. Reference the rectifier positions detailed on the front rack ears of the
power system. Default is NO.
without applying submit.
Activate TMA Channels (2 per Sector)
CAUTION: This parameter sources +12 V at 500 mA maximum to antenna ports. Caution should be used
if antenna ports are connected to test equipment with 0 VDC tolerance.
To prevent a short circuit and alarm situation, all antenna port connections must be complete prior to
enabling TMA DC supplies.
NOTE: These configurations enable DC voltage at antenna ports and enable RX fault monitoring.
Each Rx channel sources +12 V at 500 mA maximum. Any current less than 40mA will generate a LO
CURRENT fault. Any current greater than 150mA will generate a HI Current fault. Any current greater than
500 mA will disable the DC source for that channel and generate a HI CURRENT fault.
A HI CURRENT condition attempts to auto-recover every five minutes by enabling the DC to Rx channel. If
fault condition is cured, alarm clears and source remains on. If fault is present, there is no change in status.
Table 3-5 Activate TMA Channels
Step Action
1 Select the System/Configuration Page. See Figure 3-15.
2 Using the pull-down menus in the TMA Main/Diversity sections choose ENABLE for the
3 Choose SUBMIT to accept and apply the changes. To abort changes choose another page
4 Navigate to the Status / Dynamic page. See Figure 3-17.
5 Verify the correct TMA channels have the correct current draw per the specifications of the
TMAs to be utilized. Default is DISABLED
without applying submit.
TMA. Currents less than 40mA or greater than 150mA will assert a fault. Currents greater
than 450mA will crowbar the power source. The system will retry every 5-minutes to enable
the channel in the event the short is remedied. A crowbar can also be reset by configuring
the channel disabled and then enabled.
3-6 044-05243 Rev A
OS System Configuration OS-1933-E3-003
Adjust LNA Gain
Table 3-6 Adjust LNA Gain
Step Action
1 Select the System/Configuration Page. See Figure 3-15.
2 In the appropriate LNA gain section enter the desired LNA gain:
a. format = X.XdB
b. range = 0.0 to 13.0dB, default is 10.0dB
c. step size = 0.5dB
3 Choose SUBMIT to accept and apply the changes. To abort changes choose another page
without applying submit.
Adjust Tx Gain
Step Action
1 Select the System/Configuration Page. See Figure 3-15.
2 In the appropriate Tx gain section enter the desired Tx gain:
a. format = X.XdB
b. range = 0.0 to 18.0dB, default is 5.0dB
c. step size = 0.1dB
3 Choose SUBMIT to accept and apply the changes. To abort changes choose another page
without applying submit.
Adjust VSWR Alarm
Step Action
Table 3-7 Adjust Tx Gain
Table 3-8 Adjust VSWR Alarm
1 Select the System/Configuration Page. See Figure 3-15.
2 Using the pull-down menus in the VSWR Alarm section; choose a value with dependant
3 Choose SUBMIT to accept and apply the changes. To abort changes choose another page
on the system integrity. Provide adequate margin to prevent false alarms
a. value = return loss
b. format = 0.0dB
c. range = 0.0 to 12.0dB, default 0.0dB
without applying submit.
Activate External Alarm Inputs
Table 3-9 Activate External Alarm Inputs
Step Action
1 Select the System/Configuration Page. See Figure 3-15.
2 Using the pull-down menus in the External Alarms Configuration section choose one of the
3 Choose SUBMIT to accept and apply the changes. To abort changes choose another page
following dependant on external equipment:
a. OFF – default, no alarm reporting (default)
b. NO – short contact to Common for major alarm
c. NC – open contact to Common for major alarm
without applying submit.
044-05243 Rev A 3-7
OS-1933-E3-003 Rectifier
LED Indicator
Status Verification
Table 3-10 Status Verification
Step Action
1 Select the Status/Static Page. See Figure 3-16.
2 Verify the OS System is configured correctly.
3 Select the Status/Alarms Page. See Figure 3-18.
4 Verify that none of the parameters display FAIL.
5 Select the Status/Dynamic Page. See Figure 3-17.
6 View the operating performance of measured system parameters:
a. Forward and Reflected Sector Power
b. Sector Output Return Loss
c. Alarm Status
d. MCPA and Rectifier module status
e. Critical temperatures, voltages and currents
Rectifier
The rectifier module, shown in Figure 3-6, powers up automatically when AC power is applied to the OS. The
dual color LED indicator located at the upper-right side of the front panel displays rectifier status as listed in
Table 3-11.
Figure 3-7 Rectifier Front Panel
Table 3-11 Rectifier Status Indicator
LED Conditions Function
GREEN DC on
AMBER/GREEN Warning
AMBER DC off
3-8 044-05243 Rev A
MCPA OS-1933-E3-003
STATUS
RESET
THE POWER IN WIRELESS
TM
PC I/O
ON
OFF
Status
Indicator
RF Switch:
RESET
ON
OFF
PC I/O
RJ-11
Connector
MCPA
MCPA controls and indicators listed in Table 3-12, are located on the MCPA front panel. MCPA operation is
controlled by the OFF/ON/RESET RF toggle switch. MCPA status is displayed by a tri-colored LED.
Table 3-12 MCPA Controls and Indicators
Controls/Indicator Description
Controls (RF)
Toggle Switch - RESET (Up
Momentary)
Toggle Switch - ON (Center) Enables RF
Toggle Switch - OFF (Down) Disables RF
Indicator
Tri-Color LED GREEN (solid) MCPA enabled, no alarm
PC I/O Factory use only
Figure 3-8 MCPA Front Panel
Resets the MCPA
GREEN (blinking) MCPA in standby, no output power
Yellow (solid) Automatic Power Control (APC)
Yellow (blinking) VSWR alarm
Red (solid) MCPA disabled
044-05243 Rev A 3-9
OS-1933-E3-003 Controller Web Pages
Controller Web Pages
Figure 3-9 Controller Module
System – Download
Displays the current firmware version and allows firmware related functions. The Controller accommodates two
versions of firmware. The download page will allow the user to toggle between side “A” and side “B” firmware
versions or to download new firmware versions.
Software Download
Downloading a new version of code from the Web Page interface is very easy. It involves selecting only a
couple of options and pressing the “Download Now” button as shown in Figure 3-10. The software will access
the FTP server running on your PC and download the selected file. A CRC check will be performed on the
downloaded file and, if correct, the software will write the downloaded file to flash memory. After the flash
memory write is complete, the software will automatically reset and start executing on the newly downloaded
software.
Follow the steps in Table 3-13 to use the web page for downloading code.
Figure 3-10 Download Web Page
Table 3-13 Downloading Code
Step Action
1 Verify an FTP server is running at the IP address listed on the download page, as shown
2 Place the file to download in the default FTP directory, for example “c:\ftproot”.
3 Select the side to download to, ‘A’ or ‘B’ as shown in Figure 3-10.
4 Press the Browse button and navigate to the FTP download directory as shown in Figure
in Figure 3-10. Usually this is your PC’s IP address.
A free FTP server is “GuildFtpd” and can be downloaded from http://www.guildftpd.com/.
3-11. Select the file to download.
3-10 044-05243 Rev A
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