DCP Series Telcon Message Manual - Public Support Login - Unisys

Event 1 HARDWARE LINE ERROR (NOT A PP STATE ITEM)
UNISCOPE MESSAGE ERROR (PARITY ERROR)
Description: VRC or LRC (parity check) error is detected. Can be caused by faulty
line hardware, terminal hardware, or intolerable electrical noise on the line. R8
contains 0100 or 0101 (bit 8 is set). UNILPH generates this CENLOG. For more
information on UNILPH CENLOG entry descriptions, refer to Section 1 of this manual.
Action: If this error occurs for many terminals on the same line, check and repair the
line hardware and its electrical environment (including cables, modems, DCMs, and
multiplexers).
If this error occurs for only one terminal, or only for terminals connected to the same
cluster controller, check and repair the terminal or cluster.
If this error occurs often enough to cause undue overhead to the system, you can
issue an NMS STOP command for the line, poll group, or terminal, as applicable.
When the offending hardware has been fixed or taken offline, issue an NMS STRT
command to restore a normal operating environment.
UNISCOPE PORT PROCESSOR ERROR (HUNG PP)
Description: Port processor error (hung IOP). This error is detected when the LPH
has requested a response from the IOP and the IOP fails to respond within a
reasonable amount of time. This condition generally occurs when the line module
hangs or is faulty. When this condition is discovered, the LPH forces a state item to
get to a known state on that port. At that point, system state processing is invoked
(see PP STATE ITEM error description). R8 contains the value 00E8. Telcon
generates this CENLOG.
Action: Wait for state-item processing to be completed and reported, and proceed
accordingly (see description for PP STATE ITEM RECEIVED).
15–4 7436 0728–303