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Figure 13. Top of FOCUS generated pulse within 8 dB of TI noise floor peak for fast scan (TD-260C).
Attenuation Scale Non-linearity - Continued

Calibration Procedure For Optical Fiber Test Set, Ts-4320(P)/G Page Navigation
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TB 9-6625-2309-24
(e) Repeat technique of steps (b) through (d) above as necessary for remaining
data on TI optical module data sheet.
(f) Verify data has been entered correctly.
(g) Press S on keyboard at prompt and enter B = reference cursor position in km.
(h) Press Q on keyboard to quit data edit page.
(i) OFTS Attenuation Scale Calibration menu will appear on screen.
(42) Perform steps (a) through (c) below:
(a) Press 3 on keyboard to select Generate Report.
(b) Generate Attenuation Report menu will appear on screen.
(c) Press 2 on keyboard to select Graphic Report (Screen) then press 1 on
keyboard to select Graphic Report (Printer) to print a hard copy to be sent to customer.
Refer to note immediately following figure 14 for pass/fail condition.
NOTE
Boundaries shown on graphical report are normal nonlinearity
limits for TI (fig. 14).
Distance [km]
: 0.00
Reference Attenuation [dB]
: 3.04
OFTS  Distance
Scale
Calibration
Pulse Width
: long
Wavelength [nm]
: 850
Model: TS-4320
Date: 8-30-94
Main Frame SN: 935-003
Optical Module SN: 112-385
Figure 14. Reference attenuation graphic.
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