Step 1 - Select Link; Step 2 - Define Link - Extech Instruments MO500 Operation Manual

UNIT 3
Fiber Certification, cont.

STEP 1 - SELECT LINK

1-1) Press MENU to enter the MAIN MENU.
1-2) Press 1 to SELECT LINK.
1-3) At the STORED LINKS menu, the currently loaded link is denoted by an asterisk. Scroll through the list of links by pressing
to highlight the link to use. Press
EDIT LINK
1-3a) Give the link a descriptive name. Press
1-3b) Enter the date of the test. Press
1-3c) When the name and date have been entered, press
1-4) Press F2 to load the selected link. The user will be returned to the MAIN MENU.

STEP 2 - DEFINE LINK

2-1) Press to DEFINE LINK. 2
2-2) Press to CERTIFY LINK. 1
2-3) Scroll through the list of fiber types and highlight the link's fiber type. Press
2-4) Enter the length of the fiber in meters. Press
2-5) Enter the number of inline connections (connector pairs) in the link. Press
2-6) Enter the number of inline splices in the link. Press
2-7) Connect the light source for the wavelength shown on the display (remember: if the user is testing multi-mode fibers, the test
jumper must be wrapped 5-7 times around a mandrel). Press
2-8) The settings the user just entered will appear on the display (see the example below).
SRC PWR (shown in dBm) - actual power the light source is emitting.
100 m (shown in dB) - attenuation value associated with the length and type of fiber the user entered.
0 CONN (shown in dB) - attenuation value of the connectors and splices the user entered.
REF PWR (dBm) - source power plus fiber attenuation plus connector and splice attenuation. This is the PASS / FAIL
threshold.
850nm - wavelength that the reference is being set for.
M6 - fiber type that the reference is being set for (M6 = 62.5 µm multi-mode, M5 = 50µm multi-
mode, SI = single mode indoor, SO = single mode outdoor).
2-9) If any of the fiber characteristics were entered incorrectly, press
steps 2-3 through 2-7.
2-10) Press F3 to save the reference.
2-11) If the user is testing at an additional wavelength, press
F3 to edit the name and the testing date of the selected link.
F1 to edit the name. Press
F2 to enter the date. Press
DONE to continue.
DONE
FIBER CERTIFICATION
DONE
DONE to continue.
DONE to return to the STORED LINKS menu.
F2 to select.
DONE to continue.
to continue.
F1 or DONE to continue.
F2 . The user will be asked to repeat
F1 . The user will be prompted to connect a light source for the other
3-2
to continue.
SRC PWR
100 m
0 CONN
REF PWR
850nm M6
_________________
WAVE |
LEN |
F1
= -20. 24
=
-00. 38
=
+00. 00
=
-20. 62
EDIT | SAVE
LINK | REF.