Comtech EF Data CLO-10 - Manual (Page 55)

CLO-10 Link Optimizer Revision 1
Modem and Optimizer Configuration MN/CLO-10.IOM
b. Terminate the FTP session by typing "bye" and closing the DOS window.
c. Verify that the new file loaded using the procedure in Step 1.
10. Change the desired image to boot using the Util: Firmware Æ Select ( use ◄ ► arrows to
change to the other image), then cycle power to reboot the CLO-10.
11. Verify the new software versions are booting by
observing the following messages on the CLO-10
display (unit model number and firmware version
number will vary):
5.2.4 CLO-10 Tuning
Tune the CLO-10 to the desired downlink frequency. This is the same frequency to which the
demodulator is programmed and is the output frequency from the downconverter.
1. Using the front panel keypad, from the top level menu select Config: DOWNLINK and
enter in the desired downlink frequency.
2. The remodulated signal also needs to be tuned. This is the frequency that the demodulator is
tuned to. From the top level menu, select Config: REMOD and enter the remod frequency.
3. The CLO-10 needs to know the frequency of the near-end modulator. Select
Config: UPLINK , then enter the uplink frequency.
5.2.4.1 Initial Link Access Procedures
Before attempting an initial link access, an understanding of the operating modes of the CLO-10
is useful. Specifically, the operating modes are as follows:
• Normal Mode – This mode provides the characteristic Carrier-in-Carrier processing
function of initial acquisition, cancellation, and re-acquisition. Switching to NORMAL
mode forces initial acquisition.
• Bypass Mode – Signal from the Downlink port is downconverted, decimated (decimation
bandwidth is set using BW setting) and then re-modulated out the REMOD port. This
capability is typically used for troubleshooting, or for bringing up a CnC link. Each of the
two links can initially be brought up in BYPASS mode and tested before bringing both up
in CnC NORMAL mode.
• UPLINK Mode – Uplink mode is similar in functionality to BYPASS mode. The input
from the uplink is downconverted, decimated (decimation bandwidth is set using BW
setting) and then re-modulated out the REMOD port.
Note that the CLO-10 is configured from the factory in NORMAL mode. Note also that, for the
CLO-10 to process a link in NORMAL mode, a CLO-10 is required at each end of the link. This
requires coordination on each side of the link. igured from the factory in NORMAL mode. Note also that, for the
CLO-10 to process a link in NORMAL mode, a CLO-10 is required at each end of the link. This
requires coordination on each side of the link.
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