AFL OPM1 Series User manual

1
OPM1 and OLS1 Series Quick Reference Guide
It is important to keep all optical connections and surfaces clean to ensure accurate
measurements and operation. Always clean all test jumpers before conducting
test procedures outlined in this guide. Follow your company’s approved cleaning
procedures.
www.AFLtele.com /1.800.321.5298 /1.603.528.7780
OLS1 LED Light Source
OLS1
850 1300
LED Source
850nm 1300nm
9V
NOYES
AFL Telecommunications
Wavelength/Power
Off switch - selects
optical wavelength
or disables unit (
position).
Power port - interface
for an AC power
adapter. Low battery
indicator - when
ON, indicates a low
battery condition.
Battery replacement
is required.
Model Output port
OLS1-1C 660 nm
OLS1-2C 850 nm
Model Output port
OLS1-1C 850 nm
OLS1-2C 1300 nm
Active Output
indicator - lights
up when one of the
output ports is ON.
Power indicator -
lights up when the
correct AC power
adapter is connected.

2
OPM1 Optical Power Meter
AUTO OFF
BAT
-20.0 dBm
nm
1310
OPM 1
Power
dBm
OPTICAL POWER METER
nm
AUTO OFF 1300
-20.0
NOYES
AFL Telecommunications
Optical input
(adapter cap mount)-
accepts AFL-Noyes
thread-on adapter
caps. Adapter caps
for different connector
styles are available
from AFL-Noyes.
Adapter cap - OPM1
must be equipped with
an adapter cap.
Power key - press
to turn the unit On/
Off. OPM1 turns off
automatically five
minutes after the last
key press. To disable the
Auto Off feature, press
and hold this key during
power up until the letter
P appears on the display.
Display - shows
measured power and
calibrated wavelength.
λ Wavelength key -
press to select
the calibrated
wavelength. Holding
the λkey until the
word HELD appears,
briefly displays the
percentage of battery
life remaining.
Power reading -
displays measured
power [dBm]. If power
is too high or low for the
OPM1 to measure, this
field shows HI or LO.
Low battery indicator - if shown,
indicates a low battery condition.
Wavelength indicator - shows
the selected test wavelength.
Auto Off indicator
- if shown, OPM1
automatically turns off
five minutes after last
key press.

3
Measuring Optical Power
Turn on the OPM1 optical power meter.1.
Select the appropriate fiber optic test jumper. The fiber type of this jumper must be2.
the same as the fiber type normally connected to the output to be measured.
Mount the appropriate adapter cap on the OPM1 optical input. This adapter cap3.
must match the connector on the end of the test jumper you will connect to the
OPM1.
Connect one end of the test jumper to the OPM1 (adapter cap) and the other end4.
to the optical output to be measured.
Press the5. λkey to select the calibrated wavelength that matches the nominal
wavelength of the source being measured.
Read the displayed power measurement (dBm).6.
OPM 1
Power
dBm
OPTICAL POWER METER
nm
AUTO OFF
13 00
-20.0
NOYES
AFL Telecommunications
Output Input
4
3
5
6
Adapter cap
Fiber optic equipment
1
Test jumper
4

4
Testing Multimode Links
Step I - Set the Reference (One Jumper Method)
Turn on the OPM1 optical power meter and OLS1 optical light source. Allow the1.
light source to stabilize (minimum of 2 minutes).
Set both instruments to the desired test wavelength.2.
Select the appropriate fiber optic transmit and receive test jumpers. These jumpers3.
must match the fiber type of the link to be tested.
Wrap and secure the transmit jumper five times around the appropriate diameter4.
mandrel.
Note: Clean both ends of the transmit jumper.
Connect the transmit jumper to the output port of the OLS1.5.
Mount an adapter cap on the OPM1 that matches the free connector on the6.
transmit jumper.
Connect the free end of the transmit jumper to the OPM1. The OPM1 will measure7.
and display optical power in dBm.
If measured output power is outside of the normal range (specified by8.
manufacturer), clean all fiber connections or replace the transmit jumper.
OLS1 OPM1
-20 dBm
Transmit jumper
Mandrel wrap
4
56
7

5
Testing Multimode Links
Repeat steps 4 to 7.
If the displayed power level is acceptable, record it. This is the reference power9.
level at the current wavelength.
Step II - Verify Test Jumpers
Disconnect the transmit jumper from the OPM1.10.
Note: Do not disturb the transmit jumper at the OLS1 end.
If necessary, change the OPM1 adapter cap to match the connector on the receive11.
jumper that will be connected to the OPM1.
Note: Clean both ends of the receive jumper.
Connect the receive jumper to the OPM1.12.
Mate free ends of the transmit and receive jumpers using the appropriate adapter.13.
Record the displayed power level. The difference between the reference power14.
level (from step 9) and the displayed power level will be the test jumper loss in dB.
- Verify that the insertion loss of this mated connector pair is under 0.75 dB, the
maximum allowed by the TIA (Noyes recommends 0.4 - 0.5 dB typical)
OLS1 OPM1
-20.4 dBm
Transmit jumper
Mandrel wrap
Do NOT
disturb this
connection
Adapter Receive jumper
13 12
11

6
Testing Multimode Links
- If the insertion loss is not acceptable, disconnect the transmit and receive
jumpers at the adapter, clean the free ends of both test jumpers and repeat steps
13 and 14.
If the insertion loss is acceptable, disconnect the transmit and receive jumpers at15.
the adapter.
Move the OPM1 and OLS1 to opposite ends of the link to be tested.16.
Step III - Measure Multimode Link Insertion Loss
Connect the free ends of the transmit and receive jumpers to the multimode link17.
under test.
Note: Clean jumper end that connects to patch panel prior to every test.
Record the displayed power level.18.
The difference between the reference power level (from step 9) and the displayed
power level will be the link insertion loss in dB.
Record link insertion loss at the current test wavelength.19.
Repeat steps 17 to 19 for all links to be tested at the current wavelength.20.
~ ~
OLS1 OPM1
-22 dB
Link under test
Transmit jumper Receive jumper
Patch panelPatch panel
Mandrel wrap

7
Cleaning Tips
IMPORTANT! Inspect optical connectors after cleaning to ensure cleaning was
successful and to verify the end-face is not damaged (cracked, pitted, etc.).
CAUTION! Never view a live fiber. Laser radiation is harmful to eyes.
AFL recommends cleaning test cables using a Cletop cassette cleaner or a One-Click
Cleaner. Visit our web at www.AFLtele.com/go/Clean for more information.
CAUTION! Before conducting the following procedures be sure to have the
instruments turned OFF.
To Clean the OPM1 Optical Port
Unscrew the adapter cap from the adapter cap mount.1.
Use lint-free optical cleaning wipes such as AFL FiberWipes and optical quality2.
cleaning fluid such as AFL FCC2 connector cleaning fluid.
Note: if using isopropyl alcohol (IPA), be sure to use 99% pure IPA that has not
been contaminated.
Dampen a portion of the wipe with the cleaning fluid.•
Gently wipe the exposed OPM port starting with the wet section of the wipe and•
pulling it to the dry section.
Note: Starting with the wet cleaning and finishing in the dry improves cleaning
action, reduces static buildup, and finishes with the end-face dry.
Using a can of filtered compressed air (held vertically), blow out any contaminants3.
from the adapter cap.
Replace the adapter cap once the cleaning is complete.4.
To Clean the OLS1 Ports
AFL One-Click Cleaner method
Remove the protective dust cover from the tip of the One-Click Cleaner.1.
Insert the tip of the One-Click Cleaner into the optical output port and gently press2.
the body of the One-Click Cleaner until an audible “click” is heard.
Remove the One-Click Cleaner.3.

Gastech instruments S.r.l.
20090 TREZZANO sul NAVIGLIO (MI) –Via Carpaccio 2/A - Tel.[phone]
P.IVA / C.F. 12552340155 - C a p . S o c i a l e € . 1 0 . 2 0 0 , 0 0 Reg. Imprese di Milano n° 188214/98 - REA n° 1565366
Gastech instruments S.r.l.
20090 TREZZANO sul NAVIGLIO (MI) –Via Carpaccio 2/A - Tel.[phone]
P.IVA / C.F . 1255 2340 155 - C a p . S o c i a l e € . 1 0 . 2 0 0 , 0 0 Reg. Imprese di Mil ano n° 1 8821 4/98 - REA n° 1565366