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Type 4602B

  • ModelType 4602B
  • MakerB&K
  • DescriptionTelephone Test Head — Type 4602B
  • Rental문의요망
  • Stock문의요망

Telephone Test Head Type 4602 B allows accurate and repeatable positioning and subsequent measurement of a telephone handset in the standardized LRGP, HATS and AEN positions as recommended by the ITU-T, as well as in the REF position (OREM A).
It is used as a general test jig with other Brüel&Kjær measurement equipment. Type 4602 B has been updated to accommodate handsets with antennas. An upgrade kit is available
for updating earlier Test Heads Type 4602.

SPEAKING POSITIONS:
LRGP position (ITU-T Rec. P.76)
HATS position (ITU-T P.58)
REF position (OREM A)
AEN position (ITU-T Rec. P.76)
PRECISION OF SPEAKING POSITIONS:
The position of the mouth reference point is within 1mm of the nominal position in the mouth axis
direction, and within 2mm of the nominal position
perpendicular to this (i.e., mouth radially)
HANDSET GAUGE FOR SYMMETRICAL
HANDSETS:
Has a 10 to 40 mm scale with 1 mm graduations
for reading the distance from the centre of the
earcap to the top of the handset
HANDSET GAUGE FOR NON-SYMMETRICAL
HANDSETS:
The maximum lateral offset adjustment range of
the handset is ±18 mm with respect to the Ear
Reference Point.
Note: The adjustment range is reduced as the
handset approaches the maximum allowable
handset width (65 mm).
In the longitudinal direction the adjustment range
is 22 mm with respect to the Ear Reference
Point.
END STOP:
Can be adjusted from 13 to 38 mm relative to
the centre of the coupler hole ring. Maximum
length of handsets from the centre of the earcap
to the top of the handset is 47 mm without the
stop screw, and 59 mm without the rear alignment rods
HANDSET ALIGNMENT RODS:
Two adjustable self-centring rods for positioning
handsets. Maximum allowable width of handsets
is 65 mm
HANDSET ALIGNMENT RODS WITH OFFSET
ADJUSTMENT:
Two sets of adjustable rods for positioning handsets. The rods are individually adjustable to accommodate asymmetrical handsets. Adjustment
range from 10 to 33 mm
COUPLER HOLE RING (40mm hole):
For earcaps with concavity from 0 to 3.9 mm
(measured at edge of IEC ear). Has a 0 to
20 mm scale (1 mm graduations) along the periphery, and a 20 to 36 mm scale under the stop
screw
COUPLER HOLE RING (50mm hole):
For earcaps with concavity from 0 to 7.0 mm
(measured at edge of IEC ear). Has a 0 to
25 mm scale (1 mm graduations) along the periphery, and a 25 to 36 mm scale under the stop
screw
HOLDER ARM:
Has a calibrated scale for adjusting the force on
the handset from 10 to 28 N (2 N graduations).
Accommodates handsets up to 55 mm height
EAR FORCE:
The force that the Artificial Ear exerts against
an earcap can be adjusted from 0 to 10 N
MOUNTING OF TEST HEAD FOR QUALITY
CONTROL:
The upper main plate (for holding the handset)
has four 5 mm threads for mounting a custombuilt handset jig.
The lower main plate (for holding the Mouth Simulator) has four 5 mm threads for mounting the
Test Head in a quality control setup.
The holder arm has a 5 mm thread for mounting
an alternative holder pad
DIMENSIONS:
Height: 430 – 468 mm (16.9 – 18.4 in)
Width: 170 mm (6.7 in)
Depth: 260 mm (10.2 in)
Weight: 5.4 kg (11.9 lb.)
Weight: 7.4 kg (16.3 lb.) with Mouth Simulator

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