Comtech EF Data CDM-840 - Manual (Page 213)

E–1
Appendix E. DATA COLLECTION
E.1 Introduction
In the event that an operational issue (such as degraded performance or loss of IP access) is
encountered with an onsite (field-installed) CDM-840 Remote Router, it is crucial for Comtech
EF Data Product Support to receive diagnostic information collected from the onsite unit in
question in order to properly investigate and resolve the issue.
This appendix instructs you on the procedures required to collect this diagnostic information
from an onsite CDM-840 Remote Router. The procedures described in this appendix require a
user-supplied, Windows-based PC and a custom Serial Adapter Cable 1 .
Perform these procedures in the following sequence:
1. You must first use the User PC to obtain pre-reboot information* from the onsite CDM-840.
Accomplish this by text capture with a user-supplied terminal emulation program (such as
Tera Term or HyperTerminal) installed on the User PC. You must use this terminal emulator
to access the CDM-840 Serial Interface, for serial communication (via the custom Serial
Adapter Cable connection) between the CDM-840 and the User PC.
* You must gather this information while the issue exists. Do not reboot the
CDM-840 for any reason until otherwise instructed in this appendix.
1 See Sect. E.5 in this appendix for the fabrication specifications required by the custom Serial
Adapter Cable that must be provided by the user for use in this procedure.