CiM-550 IP Enabled Satellite Modem

Rev. 2

CiM IP Module Checkout & Fault Isolation

CD/CIM550.IOM

3)Continue sending constant ping from the PC 1 to PC 2. In the CiM 2, go to Operations Maintenance/Diagnostics. Enable ‘Dump Packets received from Satellite Interface”. Verify that the Pings are being received by observing 1 packet on CLI every second. If not displayed;

a)Reverify PC 2 and CiM 2 settings.

b)Verify IF link between modems for proper settings and carrier quality (RX signal leval, Eb/No, etc). It is possible that there is a spectrum inversion, particulary if you are using the CiM-550L with RF converter equipment. If this is the case, the signal level & Eb/No may be OK, but no data will be received. To correct this invert the TX and RX Spectrum on one of the CiM-550L’s.

NOTE: All pings transmitted will require a reply to be transmitted from the target host. Use the Diagnostics ‘Dump Packets” tools to isolate where packets are lost in the CiM duplex paths. Also, always disable “Dump Packets” before sending live traffic.

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