COMSPHERE 6800 Series Network Management System
2-188
January 1997
6800-A2-GB31-20
Receive Signal Quality (rsq)
Use the rsq command to test the quality of the signal being received by a DATAPHONE II Analog
Private Line (APL) modem or Direct Distance Dial (DDD) modem. Received signal quality is an
overall gauge of the data channel’s performance and is given as a figure of merit in the range of 0
(satisfactory) to 9 (poor).
For most commands, NMS enables you to specify the destination for the command’s results and
schedule its execution. If the last page of the input form cannot accommodate the Destination for
results and Schedule execution fields, an additional page is provided. For a complete description
of these fields, refer to Chapter 1, Introduction.
Access Level:
Help Desk, Data Technician, Manager, System Administrator
Abbreviation:
rsq
Restrictions:
None
Routine:
Yes
Schedule:
Yes
Related Commands: Receive Signal Level (rsl)
Signal Profile (sp)
Receive Signal Quality Input Form
This input form contains the following field:
Device(s) (Required field)
Enter the device(s) for which the receive signal quality will be measured. One or more
devices may be entered. Standard addressing format applies to the input. For information
on device addressing, refer to Appendix D of the COMSPHERE 6800 Series Network
Management System User’s/System Administrator’s Guide.
Receive Signal Quality Results Form
This results form displays device information for each device specified, the figure of merit
measure (0–9) associated with the measured received signal level, and the estimated block error.
Up to one block error per thousand blocks transmitted is considered good performance. Results
falling between one block error per 100 blocks and one block error per 1000 blocks are considered
satisfactory. Poor performance is indicated if more than one block error per 100 blocks occurs.
If line signal quality is satisfactory or poor, you should investigate further using the Signal Profile
(sp) command.
