Mr. Wm. H. von Alven
Telephone Interconnect Manager
Common Carrier Bureau
Federal Communications Commission
1200 19th Street NW, Room 304
Washington, DC 20554

Re: Xerox CSL-8308 Voice Terminal continuing quality assurance

Dear Mr. von Alven:

The quality assurance manual for the CSL-8308 is attached.

The 8308 is intended for applications in office systems research inside Xerox, While at this time we do not expect to manufacture more than one batch, it is possible that some additional units will be constructed in the future. If we do make more, general quality will be assured by 100% functional testing according to the attached document. Testing specific to FCC part 68 will be through three routes:

Functional testing

The test procedures include checks intended to verify proper signal power limitations (68.308).

Component testing

Component testing procedures include checks intended to verify compliance with the Leakage (68.304) and Hazardous Voltage Limitations (68.306) of Part 68

FCC Part 68 testing

Applicable tests from the list below will be re-performed on random samplings of the CSL-8308 at not greater than semi-annual intervals, by Mr. J. P. Neil, P.E., Mountain View, California, as indicated by his engineering judgement.

 68.302 Environment Simulation

 68.304 Leakage

 68.306 Hazardous Voltage Limitations

 68.308 Signal Power Limitations

 68.310 Longitudinal Balance Limitations

 68.312 On Hook Impedance Limitations

 68.314 Billing Protection