TECHNICAL: 0118 931 2233
Diagnostics
Loopbacks
G-Converter Nx64
The loop back is activated via SNMP, Terminal or Telnet
It is possible to apply loop backs either at the X.21 side of the converter or the G.703 link
interface side of the converter. Simple functionality tests may be performed on a single G-
Converter Nx64 Channel Card converter whilst disconnected from the Network.
A BERT tester configured as a DTE capable of generating test patterns should be connected
to the “To DTE” port of the G-Converter Nx64 Channel Card.
With the Link interface disconnected, the LOOP on the G-Converter Nx64 Channel Card set
to Local, the BERT tester will detect the clock being generated by the G-Converter Nx64
Channel Card and if the unit is operating correctly the looped back data should be error free.
The clock speed will be determined by the SNMP setting.
Ensure that the “To DTE” port is providing data rates between 0 and 2048Kbps by selecting 0
to 31 with the SNMP. Note that during switching of DTE speed errors may be generated.
This is acceptable as long as when the speed setting is in a steady state no errors are detected.
G-Converter Nx64 (M)
Loopbacks are selected by the front panel toggle switch.
47
G-Converter Nx64 Channel Cards
