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4.1 Troubleshooting
122 Installation Manual
092* CS connection
over
• Too many CSs connected • Reduce the number of CSs
234 DPLL clock failure • Main Board malfunction • Replace the PBX
251 MSG DSP failure • Optional service card
malfunction: MSG
• See if the corresponding optional
service card is installed properly
• Replace the corresponding optional
service card
305* Data Link failure • Data link between the CS and
PBX failed
• Check the connection between the CS
and PBX
310* Port Link Failure • Voice Processing System
malfunction
• Check the Voice Processing System
392 Clock master card
selected
• Clock master card has been
changed to the one indicated
by the sub code
• Check if the proper card is selected as
the new clock master card
510* SMDR disconnect • RS-232C cable not
connected
• Breaking of RS-232C cable
• Printer (terminal equipment)
malfunction
• Check the RS-232C cable
• Check the terminal equipment
Error Code Error Message PROBABLE CAUSE SOLUTION