ZETRON 640 DAPT XTRA, Руководство по установке и ремонту

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Troubleshooting and Repair
025-9416 135
Traffic
Message Description Solution(s)
page timed out Indicates that the outbound page did
not receive a response within the
specified time-out interval. Check the link connection for excessive
noise or a weak signal.
This may indicate the network packet
modem(s) successfully sent the packet,
but the round trip time was too long.
packet timed out Indicates that the inbound packet was
not received successfully. Usually
there was too long of a gap between
characters. Check the link. A noise burst on an RF or
phone link could cause this problem.
If this message appears consistently,
check the inter-node link connection.
packet too far Indicates that the inbound packet
had an inertia value of one. Check the network programming for
conflicting or incomplete routing data.
The source node may have inertia set too
low.
packet too big Indicates that an inbound packet
appears to exceed the character
limit (1024 bytes). Check link for noise or excessive traffic on a
simplex or blink link.
Check that incoming packet is within the
1024 maximum.
packet bad CRC Indicates that the inbound packet
failed the CRC error check. Check link for noise or interference.
If this message appears consistently, check
the inter-node link connection.
packet SUB-ETB Indicates that the inbound packet
had a non-standard control
sequence. The end of text block
character appeared as an escaped
character pair, <SUB>W. Some TNPP implementations send this
character sequence. Check with Zetron for
software modifications to accommodate this
anomaly.
In rare cases, the <ETB> is actually part of
the message.
For further details on the traffic command and examples of its format, see the Model 640
Operating and Programming Manual (Part No. 025-9417).
RESTORING THE DEFAULT DATABASES
The default database configuration can be restored at any time by reformatting the RAM disk.
This procedure may be required in the event of a corrupted database that is unrecoverable, a
BIOS upgrade, installation of a new ROM card, or other hardware or software changes which
significantly affect the data processing architecture. Following a RAM disk reformat, the Model
640 database requires complete re-programming.
CAUTION
This procedure destroys all data on the RAM disk! Before starting the reformat, backup
the database and system voice prompts using MCU V2.2 or later. Verify the integrity of
the backup by
printing out a copy of the backup database.
Please consult Zetron technical support if assistance is required.