More About This Product

The AFL Contractor series are rugged fibre network testing instruments comprising of LED or Laser light sources with power meters with an intuitive and simple user interface that allows field technicians to focus on installing and maintaining fibre optic networks.

Contractor Series from AFL

Compact, cost-effective and easy to use fibre network cable testers

The Contract Series of fibre network testers from AFL are rugged, compact, cost-effective and easy to use. Comprising of an LED or Laser light source with power meters that are simple to use the Contractor Series enables technicians to focus on installing and maintaining fibre optic networks.

With kits available for testing Single Mode or Multi-Mode fibre networks these fibre testers measure network insertion loss, continuity checks and fibre identification.

There are four models of power meters that provide a wide range of wavelengths and power levels, with optical references stored with each calibrated wavelength. Test tones are automatically detected for fibre identification.

A Laser light source outputting 1310nm and 1550nm is available for testing Single Mode fibre network, while a LED version outputting 850nm and 1300nm is available for testing Multi-Mode and is supplied with 50µm and 62.5µm mandrels. Light sources transmit CW (continuous wave) output (DC) with test tones at 2000, 1000, 330 and 270Hz for fibre identification.

Features & Benefits

Features & Benefits

  • Palm-sized rugged, dependable, tools backed with 5-year warranty.
  • Cost-effective, easy to use.
  • Auto-off time out feature to maximise battery life.
  • Large sunlight readable display. Backlight for dim conditions.
  • Link loss measurements.
  • Certify SM and MM links to industry standards.
  • Continuity check and fibre identification prior to fusion splicing.



Optical Specifications: CSM1 Power Meter
Calibrated Wavelengths850, 980, 1310, 1490, 1550, 1625nm850, 1300, 1310, 1490, 1550, 1625nm
Detector TypeFiltered InGaAsInGaAs
Measurement Range+26 to -50 dBm+6 to -70 dBm
Tone Detect Range+6 to -30 dBm
+6 to -25 dBm for 850 nm
+6 to -50 dBm
+6 to -45 dBm for 850 nm
Accuracy a±0.15 dB (typical), ± 0.3 dB
Resolution0.01 dB
Measurement UnitsdB, dBm, μW


Optical Specifications: CSM1 Light Source
CSS1-SM (Single Port)CSS1-MM (Single Port)
Wavelength1310nm ±20nm1550nm ±20nm850nm ±20nm1300nm +40/-60nm
Spectral Width (max)5nm5nm35nm170nm
Emitter Type, Safety ClassLaser. Class I FDA 21 CFR 1040.10 & 1040.11, IEC 60825-1: 2007-03LED, Class I FDA 21 CFR 1040.10 & 1040.11, IEC 60825-1: 2007-03
Output Power≥0.0 dBm into 9/125 fibre≥-20.0 dBm into 62.5/125 fibre
Output Stability b±0.05 dB over 1 hour; ±0.15 dB over 8 hours±0.1 dB over 1 hour; ±0.15 dB over 8 hours
Tone Output2000, 1000, 330, 270 Hz


General SpecificationsCSM1CSS1-SMCSS1-MM
Output ConnectorSupports Most Industry Standard ConnectorsSC, FC, ST, LCSC Fixed
Power2 AA batteries
Battery Life>300 hours75 hours (typical)30 hours (typical)
Operating Temperature-10°C to 50°C, 90% RH (non-condensing)
Storage Temperature-30°C to 60°C, 90% RH (non-condensing)
Size (H x W x D)14.0 x 8.1 x 3.8 cm (5.5 x 3.2 x 1.5 in) without boot
Weight0.29 kg (0.65 lb) without boot


Contractor Series Models

Power Meter ModelsCalibrated Wavelengths (nm)Target Applications
CSM1-4850, 980, 1310, 1490, 1550, 1625High Power Single-mode Measurements
CSM1-3850, 1300, 1310, 1490, 1550, 1625Single-mode Measurements


Light Source ModelsFibre TypeWavelengths (nm)Target Applications
CSS1-SMSM1310, 1550SM Networks, LAN/WAN Testing
CSS1-MMMM850, 1300Ethernet, Token Ring, and FDDI Fibre Links


Loss Text Kits ModelsFibre TypePower MeterLight SourceDynamic Range (dB)




60 @ 1310/1550 nm, on 9/125 single-mode fibre

40 @ 850/1300 nm, on 62.5/125 multimode fibre

CKS-3SMCSM1-3CSS1-SM70 @ 1310/1550 nm, on 9/125 single-mode fibre
CKM-3MMCSM1-3CSS1-MM40 @ 850/1300 nm, on 62.5/125 multimode fibre

Part Numbers

Part Numbers

Each Contractor Series Kit ships with adapter caps for all included instruments, AA alkaline batteries, user guide, and carry case with room for optional cleaning supplies (see below). Fibre mandrels (50 micron and 62.5 micron) are included with CKSM-2 and CKM-2 kits.


When purchased separately, CSM1 power meters and CSS1 light sources ship with connector adapter, AA alkaline batteries, user guide, and carry case. Fibre mandrels (50 micron and 62.5 micron) are included with CSS1-MM units.

Test jumpers are required for operation (purchased separately). Test jumpers with a variety of connector styles and fibre types and adapter caps for most common connectors may be purchased from AFL.

Models and Configurations

Model NumberDescription
FJK-CKSM-2Single-mode and Multimode Test kit. Available with SC connector adapters.
FJK-CKS-2-cc (cc = FC or SC)Single-Mode Test Kit. Available with FC or SC connectors adapters.
FJK-CKS-3-cc (cc = FC or SC)Single-Mode Test Kit. Available with FC or SC connectors adapters.
FJK-CKM-2Multimode Test Kit. Available with SC connector adapters.
FJK-CSS1-SM-cc (c = FC, SC, ST, or LC)Single-mode LASER Source. Available with FC, SC, ST, or LC connector adapters.
FJK-CSS1-MMMultimode LED Source. Available with SC connector adapter.
FJK-CSM1-4-cc (cc = *)High Power InGaAs Detector for single-mode applications.
FJK-CSM1-3-cc (cc = *)InGaAs Detector for single-mode applications.
FJK-CSM1-2-cc (cc = *)Germanium Detector for Multimode/Single-mode applications.
FJK-CSM1-1-cc (cc = *)Silicon Detector for Plastic Optical Fiber Measurements.

* For CSM1 power meters, cc = FC, SC, ST, LC, 2.5 mm, 1.25 mm. Other connector styles are available; see accessories section.


The following accessories will help maximize your Contractor Series performance and provide flexibility to interface to many industry standard connectors.

Optional Cleaning Supply Packages – Sized to Fit in CK Carry Cases

Accurate test results require clean optical connectors – cleaning kits below are designed to support optical loss testing. A great accessory for maintaining new test equipment measurement integrity!

Model NumberDescriptionIncludes
FJK-8500-20-0900Wet Cleaning Kit8500-10-0016MZ, Cletop-SB or cleaning exposed ferrules (jumper ends).

CCTS-25-0900MZ, connector Cleaning Tips for 2.5 mm ferrule in adapters or sockets (SC, FC, ST in adapters), Blue (40 sticks).

CCTS-12-0900MZ, connector Cleaning Tips for 1.25 mm ferrule in adapters or sockets (LC, MU in adapters), Green (40 sticks).

FCC2-00-0900, optical quality Cleaning Fluid for fibre connector end faces.

FJK-8500-20-0901Dry Cleaning Kit8500-10-0016MZ, Cletop-SB for cleaning exposed ferrules (jumper ends).

8500-10-0024MZ, ACT-01 2.5 mm adapter cleaning tips (Qty = 200).


CSS1-SM Single-mode Light Source Accessories

Part NumberDescription
FJK-2900-50-0002MRFC UCI connector adapter
FJK-2900-50-0003MRSC UCI connector adapter
FJK-2900-50-0004MRST UCI connector adapter
FJK-2900-50-0006MRLC UCI connector adapter
FJK-8800-00-0072PRUniversal flip-top dust cap for UCI outputs


CSM1 Power Meter Adapter Caps

Part NumberDescription
FJK-8800-00-02142.5mm Universal (accepts FC, SC, and ST ferrules)
FJK-8800-00-02241.25mm Universal (accepts LC and MU ferrules)
FJK-8800-00-0225LC simplex/duplex
FJK-8800-00-0226MU simplex
FJK-8800-00-02192.5mm open Universal, Accepts SC duplex, OptiTap connector
FJK-8800-00-0211DIN 47256
FJK-8800-00-0212Radial PFO/VFO
FJK-8800-00-02231,000mm bare fibre (Plastic Fibre – POF)
FJK-8800-00-0271PRHP-HFBR-45XX universal (Plastic Fibre – POF)

PDF Downloads

PDF Downloads