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RM3 SERIES BACKREFLECTION METER
USER’S MANUAL
10112341 Rev 002 Page 4 of 39
Website: http://www.jdsuniphase.com
Safety Information, Instructions, and Symbols
Safety Information
Classification
The RM Series Backreflection Meter consists of an exposed metal chassis that is connected
directly to earth via a power cord and, therefore, is classified as a Class 1 instrument.
Disconnecting from Line Power
Some of the circuits are powered whenever the unit is connected to the AC power source (line
power). To ensure that the unit is not connected to the line power, disconnect the power cord
from either the power inlet on the unit’s rear panel or from the AC line-power source
(receptacle). The power cord must always be accessible from one of these points. If the unit is
installed in a cabinet, the operator must be able to disconnect the unit from the line power by
the system’s line-power switch.
Line Power Requirements
The RM meter operates from any single-phase AC power source that supplies between 100
and 240 V at a frequency range of 50 to 60 Hz. The maximum power consumption of the RM
meter is 25 VA. The unit can also be operated using its internal 6V DC rechargeable battery.
Fuse Type
The fuse type used by the unit is (5 x 20) mm, 1 A/250 V (fast).
Laser Specifications
Laser specifications are provided in Table 1.
Table 1: Specifications
Parameter Single-mode (SM) Multimode (MM)
Wavelength 980*, 1310, 1480, 1550, 1625,
or 1650 ± 10 nm
850, or 1310 ± 20 nm
Class 1 1
Fiber Type 9/125 µm SM(*5/125 µm SM) 50/125 µm MM 62.5/125 µm
MM
Maximum Accessible
Emission Level
-15 dBm -23 dBm -25 dBm
Maximum Output Power -4 dBm -4 dBm -4 dBm
Numerical Aperture 0.13 (*0.14) 0.20 0.28
Effective Numerical
Aperture
0.20 (*0.21) 0.27 0.34