MU Type Optical In-Line Attenuators
MU Multi-position Mounting
MU
SC
Fig.1
FC
sFeatures
1. Smaller package
Hirose’s original design combines a plug and attenuator
into the same connector size of a standard MU plug,and
the superior design enable to save a space using 4.5
mm pitch MU multiple adapters as shown in Fig. 1 and 2.
Save 16.7mm space
Attenuator - MU Plug configuration
16.7mm
Environment
2. Easy to Change attenuation level
Easy to change the attenuation level by exchanging the
attenuatin part with a simple push-twist lock as shown in
Fig.3(See page 80).15 levels of attenuation are currently
available : 0,1,2,3,4,5,6,7,8,9,10,12.5,15,17.5,and 20 dB
Adapter - MU
MU plug
Attenuator - MU PJ configuration
Fig.2
3. Insertion and extraction tool
The MU standard tool is available as shown in Fig. 4.
Easy to change an attenuation part
Attenuators
4. Maximum input power :100mW
5. Please contact us if you have any requests.
Hirose will offer excellent solutions to meet
your requirements.
Back harness
Attenuation part
sApplications
Power level adjustment of optical fiber communication
networks.
Fig.3
MU standard tool is available
Terminators
Fig.4
65
sProduct
Specifications
Operation temperature range
Ratings
-25°C to +70°C
100mW
Storage temperature range
Fiber type
-25°C to +70°C
SM
Max. Input Power
MU
Item
Test Method
Specifications
Attenuation Tolerance
0dB
≤0.5dB
1,2dB
±0.5dB
3,4,5,6dB
±0.8dB
7,8,9dB
±1.0dB
10dB
±1.2dB
12.5,15,17.5,20dB
±ATT∞10%dB
≥40dB
Engagement force:
≤
12.5 N
Separation force:
≤
12.5 N
Optical
Characteristis
Attenuation
Measurement at a point within the wavelength of 1310
±
30 nm, and a point within the wavelength of 1550
±
30
nm.
SC
Harsh
Environment
Return Loss(R.L.)
Engagement and
Engagement and separation forces at 50mm/s.
separation forces
Gauge retention force Zirconia gauge at
Ø1.249
± 0.0005 mm.
Insertion and extraction number for connectors:500
Mating durability Insertion and extraction number for an attenuation element:50
For 3 hours at an amplitude of 1.5mm.with the frequency range 10 to 55Hz.
Vibration
In each of three mutually perpendicular plane.
3 times in each of three mutually perpendicular axis with the
Shock
acceleration 981m/s
2
.
Humidity : 90% to 96%
Compasite
Temparature-humidity Temperature : -10°C to 65°C,
Cyclic test
Cyclic : 10 cycles(240 hours)
Temp : 25/-25/-25/70/70/25°C
Temperature cycling Time : 15 30 30 30 15 min
Cyclic : 10 cycles
Temperature : 85°C
Time : 500 hours
Dry heat
Temperature : -25°C
Time : 500 hours
Cold
Salt Mist : 5%
Time : 48 hours
Salt Mist
Mechanical
Characteristis
1.0N to 2.5N
Environmental
Characteristis
1) Attenuation shall be satisfild after the test.
2) No breakage,crack or looseness on
components.
FC
No significant corrosion.
sMaterials
Part
Body
Ferrule
Split sleeve
Material
Zinc alloy
Zirconia
Zirconia
Attenuators
sOrdering
Information
HMU - PAT - FH - K 1 01
1
Terminators
2
3
4
5
6
1
Series name
: HMU
2
Indicates a in-line type attenuator
3
Indicates the attenuation part
4
Polishing type
6
Attenuation
K:AdPC
5
Applicable optical fiber 1:SM
00:0 dB (Through)12:12.5dB,17:17.5dB
01 to N: Attenuation (dB)
Note: This attenuator is used only with the cable assembly shown
on the next page.
66
sIn-line
attenuators
S
MU-AT
4.4
6.6
20 dB
23.7
Part Number
HMU-PAT-FH-K100
HMU-PAT-FH-K101
HMU-PAT-FH-K102
HMU-PAT-FH-K103
HMU-PAT-FH-K104
HMU-PAT-FH-K105
HMU-PAT-FH-K106
HMU-PAT-FH-K107
HMU-PAT-FH-K108
HMU-PAT-FH-K109
HMU-PAT-FH-K110
HMU-PAT-FH-K112
HMU-PAT-FH-K115
HMU-PAT-FH-K117
HMU-PAT-FH-K120
CL No.
827-0001-8
827-0002-0
827-0003-3
827-0004-6
827-0005-9
827-0006-1
827-0007-4
827-0011-1
827-0012-4
827-0013-7
827-0008-7
827-0014-0
827-0009-0
827-0015-2
827-0010-9
Attenuation
10.5dB
11.5dB
12.5dB
13.5dB
14.5dB
15.5dB
16.5dB
17.5dB
18.5dB
19.5dB
10.5dB
12.5dB
15.5dB
17.5dB
20.5dB
Specification
0.5dB
max.
±0.5dB
Return loss
Wavelength
±0.8dB
1310nm
1550nm
≥40dB
±1dB
±1.2dB
±ATT∞10%dB
sBack
Cable Assembly (2mm diameter cable type)
Back harness
The back cable assembly is supplied by Hirose.
Please contact your Hirose sales representative for details
concerning your back cable needs, including cable length and
mating connector requirements.
HRS JPN ππππ
L(
+10
%)m
0
sOrdering
Information (Back cable assembly)
HMU - PAT
1
1
Series Name HMU
2
Indicates a in-line type attenuator
3
Indicate a back cable assembly
4
Mating connector (Note)
2
BH
3
101 K Q - L
4
5
6
7
5
Polishing type K: AdPC
6
Fiber cable type(Note)
Q: SM-9.5/125, diameter 2mm Jacket color: Yellow
7
Cable length
Unit: Meters
011 : FC connector, 2 mm diameter cable
04G : SC connector, 2 mm diameter cable
101 : MU connector, 2 mm diameter cable
Note: These are examples of offered cable assemblies. They will differ depending on the applicable cable diameter and the type of boot.
For exact cable assembly specifications, specify the connector type at the mating side and the required total length. Contact your
Hirose Electric account representative.
M
MU
SC
Split sleeve
Fiber type
FC
Zirconia
SM
Environment
Attenuators
Terminators
67
B
Procedure for Changing the Attenuator Element
Insertion Procedure
MU
SC
qAlign
the triangle mark of the
boot on the back cable assembly
with the black indexing mark on
the attenuator.
w
Insert the back cable assembly
into the attenuator.
e
Turn right the back cable assembly
to engage connection lock. After
turning, the triangle mark of the
boot will be aligned with the
attenuation label.
Withdrawal Procedure
FC
Harsh
Environment
qPress
the back cable assembly
toward the attenuator.
w
Turn right the back cable assembly
and release the lock.
e
Pull away the back cable assembly.
Terminators
Attenuators
68
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