Ripley ODM RP 460 User manual

RP 460
How to Set a Reference
and Perform an Insertion Loss Test

Page 2
M-UM038-01 RP 460 Reference and Test
DMT
Introduction
Contents
Performing a test for Insertion Loss (also commonly called dB Loss or Attenuation) on a ber optic
cable requires an Optical Power Meter (OPM) and an Optical Light Source (OLS). This document
outlines the specic steps which must be taken with ODM’s RP 460 optical power meter to perform
insertion loss testing on a variety of ber types and setups.
Example 1: Singlemode Fiber, Point-to-Point, 1 Jumper 3
Example 2: Singlemode Fiber, Point-to-Point, 2 Jumpers 5
Example 3: Singlemode Fiber, Paired, Loopback Jumper 7
Example 4: Multimode Fiber, Point-to-Point, 1 Jumper 9
Example 5: Multimode Fiber, Paired, Loopback Jumper 11

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M-UM038-01 RP 460 Reference and Test
DMT
Example 1: Singlemode Fiber, Point-to-Point, 1 Jumper
Fiber Type Singlemode
Connectors Used LC
Test Jumper Setup Single
OPM Used RP 460
OLS Used DLS 355
Fiber-Under-Test
The ber-under-test is singlemode with LC
connectors on each end. The ber-under-test may
be up to 250 kilometers long. In this example, the
ber-under-test is 400 meters long.
Test Jumper
The test jumper is a one-meter singlemode ber
with SC and LC connectors. The SC connector will
be plugged into the DLS 355 laser source and the
LC connector will be used to interface with the
ber-under-test.
Power Meter
The RP 460 power meter is set to the
1550nm wavelength. The 1310nm
wavelength may also be used. Always
match the wavelength on the RP 460
to the wavelength on the DLS 355. The
adapter on the RP 460 is the AC 029 LC
adapter.
Light Source
The DLS 355 laser source is set to the
1550nm wavelength. The 1310nm
wavelength may also be used. The
adapter is the default AC 022B SC adapter.
400m Fiber
1m Jumper

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M-UM038-01 RP 460 Reference and Test
DMT
Referencing Setup
The connectors on the Test Jumper should be cleaned to appropriate standards. Use an inspection
scope to verify ber cleanliness. Plug the connectors on the Test Jumper into the RP 460 and DLS 355.
The RP 460 should be in the dBm measurement mode. If it is not in the dBm mode, press the dB/dBm
button once to put it into the dBm mode.
Setting Reference
The DLS 355 output power is calibrated to -5dBm. If the RP 460 screen displays between -5.00dBm
and -7.00dBm, press and HOLD the dB/dBm button for 5 seconds. After 5 seconds, release the
dB/dBm button. The RP 460 screen will display 0.00dB, with some minor variation. DO NOT switch the
RP 460 back to the dBm mode.
Between -5.00 and -7.00dBm Hold for 5 seconds Reference is set
Loss Test
The Test Jumper MUST remain attached to the DLS 355. Do not remove the Test Jumper from the
optical link. The connectors on the Test Jumper and the Fiber-Under-Test should be cleaned to
appropriate standards. Use an inspection scope to verify ber cleanliness. Plug the Test Jumper
into one end of the Fiber-Under-Test using a bulkhead adapter as shown. Plug the other end of the
Fiber-Under-Test into the LC adapter on the RP 460. The Insertion Loss of the Fiber-Under-Test will be
shown on the RP 460 screen.
Test Jumper
Test Jumper
Fiber-Under-Test

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M-UM038-01 RP 460 Reference and Test
DMT
Example 2: Singlemode Fiber, Point-to-Point, 2 Jumpers
Fiber Type Singlemode
Connectors Used LC
Test Jumper Setup Double
OPM Used RP 460
OLS Used DLS 355
Fiber-Under-Test
The ber-under-test is singlemode with LC
connectors on each end. This method allows testing
of connectors inside bulkheads. One or both ends of
this ber-under-test may be inside bulkheads. The
ber-under-test may be up to 250 kilometers long.
In this example, the ber-under-test is 400 meters
long.
Test Jumpers
The test jumpers are both one-meter singlemode
ber. One has one SC and one LC connector, and
the other has two LC connectors.
400m Fiber
Connectors Inside Bulkheads
1m Jumpers
Power Meter
The RP 460 power meter is set to the
1550nm wavelength. The 1310nm
wavelength may also be used. Always
match the wavelength on the RP 460
to the wavelength on the DLS 355. The
adapter on the RP 460 is the AC 029 LC
adapter.
Light Source
The DLS 355 laser source is set to the
1550nm wavelength. The 1310nm
wavelength may also be used. The
adapter is the default AC 022B SC adapter.

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M-UM038-01 RP 460 Reference and Test
DMT
Referencing Setup
The connectors on the Test Jumper should be cleaned to appropriate standards. Use an inspection
scope to verify ber cleanliness. Plug the connectors on the Test Jumper into the RP 460 and DLS 355.
The RP 460 should be in the dBm measurement mode. If it is not in the dBm mode, press the dB/dBm
button once to put it into the dBm mode.
Setting Reference
The DLS 355 output power is calibrated to -5dBm. If the RP 460 screen displays between -5.00dBm
and -7.00dBm, press and HOLD the dB/dBm button for 5 seconds. After 5 seconds, release the
dB/dBm button. The RP 460 screen will display 0.00dB, with some minor variation. DO NOT switch the
RP 460 back to the dBm mode.
Between -5.00 and -7.00dBm Hold for 5 seconds Reference is set
Loss Test
The Test Jumpers MUST remain attached to the DLS 355 and RP 460. Do not remove the Test Jumpers
from the optical link. The connectors on the Test Jumpers and the Fiber-Under-Test should be cleaned
to appropriate standards. Use an inspection scope to verify ber cleanliness. Plug the Test Jumpers
into each end of the Fiber-Under-Test using the bulkheads as shown. The Insertion Loss of the
Fiber-Under-Test will be shown on the RP 460 screen.
Test Jumper
Test Jumper
Fiber-Under-Test
Test Jumper
Test Jumper
Bulkhead

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M-UM038-01 RP 460 Reference and Test
DMT
Example 3: Singlemode Fiber, Paired, Loopback Jumper
Fiber Type Singlemode
Connectors Used LC
Test Jumper Setup Loopback
OPM Used RP 460
OLS Used DLS 355
Fiber-Under-Test
The ber-under-test is paired singlemode
with paired LC connectors on each end. The
ber-under-test may be up to 250 kilometers long.
In this example, the ber-under-test is 400 meters
long.
Test Jumper
The test jumper is paired for loopback testing. One
end has an SC connector and an LC connector,
and the other end has two LC connectors clipped
together. This method also uses a singlemode
loopback adapter. It should be blue and have a
duplex bulkhead on the end.
400m Paired Fiber
1m Paired Jumper
Singlemode Loopback
Power Meter
The RP 460 power meter is set to the
1550nm wavelength. The 1310nm
wavelength may also be used. Always
match the wavelength on the RP 460
to the wavelength on the DLS 355. The
adapter on the RP 460 is the AC 029 LC
adapter.
Light Source
The DLS 355 laser source is set to the
1550nm wavelength. The 1310nm
wavelength may also be used. The
adapter is the default AC 022B SC adapter.

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M-UM038-01 RP 460 Reference and Test
DMT
Referencing Setup
The connectors on the Test Jumper and loopback should be cleaned to appropriate standards. Use
an inspection scope to verify ber cleanliness. Plug the connectors on the Test Jumper into the RP
460 and DLS 355. Plug the loopback adapter on to the paired LC side of the Test Jumper. The RP 460
should be in the dBm measurement mode. If it is not in the dBm mode, press the dB/dBm button
once to put it into the dBm mode.
Setting Reference
The DLS 355 output power is calibrated to -5dBm. If the RP 460 screen displays between -5.00dBm
and -7.00dBm, press and HOLD the dB/dBm button for 5 seconds. After 5 seconds, release the
dB/dBm button. The RP 460 screen will display 0.00dB, with some minor variation. DO NOT switch the
RP 460 back to the dBm mode.
Between -5.00 and -7.00dBm Hold for 5 seconds Reference is set
Loss Test
The paired Test Jumper MUST remain attached to the DLS 355 and RP 460. Do not remove the Test
Jumper from the optical link. The connectors on the Test Jumper and the Fiber-Under-Test should be
cleaned to appropriate standards. Use an inspection scope to verify ber cleanliness. Plug the clipped
LC end of the Test Jumper into one end of the Fiber-Under-Test using the bulkhead as shown. Plug
the loopback on to the other end of the Fiber-Under-Test. The Insertion Loss of the Fiber-Under-Test
will be shown on the RP 460 screen.
Test Jumper
LoopbackFiber-Under-Test
Paired Test Jumper
Loopback Adapter

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M-UM038-01 RP 460 Reference and Test
DMT
Example 4: Multimode Fiber, Point-to-Point, 1 Jumper
Fiber Type Multimode
Connectors Used LC
Test Jumper Setup Single
OPM Used RP 460
OLS Used DLS 350
Fiber-Under-Test
The ber-under-test is multimode with LC
connectors on each end. In this example, the
ber-under-test is 400 meters long.
Test Jumper
The test jumper is a one-meter multimode ber
with SC and LC connectors. The SC connector will
be plugged into the DLS 350 LED source and the
LC connector will be used to interface with the
ber-under-test.
Power Meter
The RP 460 power meter is set to
the 850nm wavelength. The 1300nm
wavelength may also be used. Always
match the wavelength on the RP 460
to the wavelength on the DLS 350. The
adapter on the RP 460 is the AC 029 LC
adapter.
Light Source
The DLS 350 LED source is set to the
850nm wavelength. The 1300nm
wavelength may also be used. The
adapter is the default AC 022B SC adapter.
400m Fiber
1m Jumper

Page 10
M-UM038-01 RP 460 Reference and Test
DMT
Referencing Setup
The connectors on the Test Jumper should be cleaned to appropriate standards. Use an inspection
scope to verify ber cleanliness. Plug the connectors on the Test Jumper into the RP 460 and DLS 350.
The RP 460 should be in the dBm measurement mode. If it is not in the dBm mode, press the dB/dBm
button once to put it into the dBm mode.
Setting Reference
The DLS 350 output power is calibrated to -22dBm. If the RP 460 screen displays between -22.00dBm
and -25.00dBm, press and HOLD the dB/dBm button for 5 seconds. After 5 seconds, release the
dB/dBm button. The RP 460 screen will display 0.00dB, with some minor variation. DO NOT switch the
RP 460 back to the dBm mode.
Between -22 and -25dBm Hold for 5 seconds Reference is set
Loss Test
The Test Jumper MUST remain attached to the DLS 350. Do not remove the Test Jumper from the
optical link. The connectors on the Test Jumper and the Fiber-Under-Test should be cleaned to
appropriate standards. Use an inspection scope to verify ber cleanliness. Plug the Test Jumper
into one end of the Fiber-Under-Test using a bulkhead adapter as shown. Plug the other end of the
Fiber-Under-Test into the LC adapter on the RP 460. The Insertion Loss of the Fiber-Under-Test will be
shown on the RP 460 screen.
Test Jumper
Test Jumper
Fiber-Under-Test

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M-UM038-01 RP 460 Reference and Test
DMT
Example 5: Multimode Fiber, Paired, Loopback Jumper
Fiber Type Multimode
Connectors Used LC
Test Jumper Setup Loopback
OPM Used RP 460
OLS Used DLS 350
Fiber-Under-Test
The ber-under-test is paired multimode
with paired LC connectors on each end. The
ber-under-test may be up to 250 kilometers long.
In this example, the ber-under-test is 400 meters
long.
Test Jumper
The test jumper is paired for loopback testing. One
end has an SC connector and an LC connector,
and the other end has two LC connectors clipped
together. This method also uses a multimode
loopback adapter. It should be black and have a
duplex bulkhead on the end.
400m Paired Fiber
1m Paired Jumper
Multimode Loopback
Power Meter
The RP 460 power meter is set to
the 850nm wavelength. The 1300nm
wavelength may also be used. Always
match the wavelength on the RP 460
to the wavelength on the DLS 350. The
adapter on the RP 460 is the AC 029 LC
adapter.
Light Source
The DLS 350 LED source is set to the
850nm wavelength. The 1300nm
wavelength may also be used. The
adapter is the default AC 022B SC adapter.

Page 12
M-UM038-01 RP 460 Reference and Test
DMT
Referencing Setup
The connectors on the Test Jumper and loopback should be cleaned to appropriate standards. Use
an inspection scope to verify ber cleanliness. Plug the connectors on the Test Jumper into the RP
460 and DLS 350. Plug the loopback adapter on to the paired LC side of the Test Jumper. The RP 460
should be in the dBm measurement mode. If it is not in the dBm mode, press the dB/dBm button
once to put it into the dBm mode.
Loss Test
The paired Test Jumper MUST remain attached to the DLS 350 and RP 460. Do not remove the Test
Jumper from the optical link. The connectors on the Test Jumper and the Fiber-Under-Test should be
cleaned to appropriate standards. Use an inspection scope to verify ber cleanliness. Plug the clipped
LC end of the Test Jumper into one end of the Fiber-Under-Test using the bulkhead as shown. Plug
the loopback on to the other end of the Fiber-Under-Test. The Insertion Loss of the Fiber-Under-Test
will be shown on the RP 460 screen.
Test Jumper
Loopback
Fiber-Under-Test
Paired Test Jumper
Loopback Adapter
Setting Reference
The DLS 350 output power is calibrated to -22dBm. If the RP 460 screen displays between -22.00dBm
and -25.00dBm, press and HOLD the dB/dBm button for 5 seconds. After 5 seconds, release the
dB/dBm button. The RP 460 screen will display 0.00dB, with some minor variation. DO NOT switch the
RP 460 back to the dBm mode.
Between -22 and -25dBm Hold for 5 seconds Reference is set