- No.254 PLUG FLEXING TESTER
- No.257 OPTICAL FIBER CABLE FLEXING TESTER
- No.259 OPTICAL FIBER CRUSH TESTER

No.254
PLUG FLEXING TESTER
Overview of PLUG FLEXING TESTER
This tester is used to test the bending endurance of plugs. Hanging prescript weight on one end of the plug and repeatedly bending the other end 60° back and forth for a prescript number of times.
After a prescript number of times the plug has been bended, the operator is to check the disconnection rate of the plug to determine the bend stress strength.
Also, to test chloride insulating cables, the plug will be flexed left and right repeatedly at a 90° angle.
Reference Standards
JIS C3662-2, C8306, IEC-60227-2
Specification
| Specifications are subject to change without notice. | |
|---|---|
Number of Test Stations | 1, 2, 3, or 4 stations |
Flexing Angle | 60˚, 90˚ (2 angles) from the vertical axis |
Flexing Rate | 40 flexes/min (20 cycles/min) |
Test Load | 500 g |
Steady Rest | 300 mm from the vertical axis, 40 mm spacing |
Counter | 6 digit preset counter |
Options | Continuity break detector |
Power Source | AC 100 V 1-phase 10 A 50/60 Hz |
Dimensions and Weight (Approx.) | W470×D505×H760 mm, 43 kg (1station) |

No.257
OPTICAL FIBER CABLE FLEXING TESTER
Overview of OPTICAL FIBER CABLE FLEXING TESTER
This tester is used for conducting flexing tests on optical fiber cables and cords.
The sample specimen is applied a certain amount of weight and bent 90° in both directions.
The specimen is then evaluated by examining the damage and loss caused by the test.
Reference Standards
JIS C6821, C6851, C6861, IEC-60794
Specification
| Specifications are subject to change without notice. | |
|---|---|
| Hangings | 1 hanging, 3 hangings, 6 hangings (3 kinds) |
| Flexing Angle | Left-Right 45°, 60°, 90° (Standard Value 90°) |
| Flexing Speed | 2 sec./ 1 cycle |
| Flexing Mandrel Diameter | R15 mm |
| Weight | 500 g, 1,000 g |
| Option | Break Detection Function |
| Power Source | AC 100 V, 1-Phase, 10 A, 50/60 Hz |
Dimensions and Weight (Approx.) | Differs by Specifications. |

No.259
OPTICAL FIBER CRUSH TESTER
Overview ofOPTICAL FIBER CRUSH TESTER
This tester is for conducting optical fiber cable crushing tests among the testing methods of mechanical characteristics for optical fiber cable or cord.
The specimen is placed between steel plates and applied force continuously but not rapidly to avoid impact.
When the test is finished, the specimen is measured the loss and examined after set for 1 min. or more.
Reference Standards
JIS C6821, C6851, C6861, IEC-60794
Specification
| Specifications are subject to change without notice. | |
|---|---|
| Movable Plate | Width 100 × Length 200 mm |
| Crushing Force | 7 N/mm, 14 N/mm |
|
Dimensions and Weight (Approx.) | W700 × 350 × H500 mm, 10 kg |
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