MU SC FC Harsh
Environment Attenuators Terminators
65
MU Type Optical In-Line Attenuators
MU plug
Attenuator - MU PJ configuration
Adapter - MU
Attenuator - MU Plug configuration
16.7mm
MU Multi-position Mounting
Save 16.7mm space
Fig.2
Fig.1
Easy to change an attenuation part
Fig.3
MU standard tool is available
Fig.4
Back harness
Attenuation part
Features
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.
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
3. Insertion and extraction tool
The MU standard tool is available as shown in Fig. 4.
4. Maximum input power :100mW
5. Please contact us if you have any requests.
Hirose will offer excellent solutions to meet
your requirements.
Applications
Power level adjustment of optical fiber communication
networks.
66
MUSCFC
Harsh
Environment
AttenuatorsTerminators
HMU - PAT - FH - K 1 01
1 2 4 5 63
Series name : HMU
Indicates a in-line type attenuator
Indicates the attenuation part
Polishing type K:AdPC
Applicable optical fiber
1:SM
Attenuation 00:0 dB (Through)12:12.5dB,17:17.5dB
01 to N: Attenuation (dB)
1
2
3
4
5
6
Note: This attenuator is used only with the cable assembly shown
on the next page.
Optical
Characteristis
Part Material
Body Zinc alloy
Ferrule Zirconia
Split sleeve Zirconia
Product Specifications
Ratings Operation temperature range
Max. Input Power
-25°C to +70°C
100mW
Storage temperature range
Fiber type
-25°C to +70°C
SM
Materials
Item Test Method Specifications
Measurement at a point within the wavelength of 1310 ±
30 nm, and a point within the wavelength of 1550 ±30
nm.
Attenuation
Return Loss(R.L.)
Ordering Information
Mechanical
Characteristis
Environmental
Characteristis
Engagement and separation forces at 50mm/s.
Zirconia gauge at Ø1.249 ± 0.0005 mm.
Insertion and extraction number for connectors:500
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.
In each of three mutually perpendicular plane.
3 times in each of three mutually perpendicular axis with the
acceleration 981m/s
2
.
Humidity : 90% to 96%
Temperature : -10°C to 65°C,
Cyclic : 10 cycles(240 hours)
Temp : 25/-25/-25/70/70/25°C
Time : 15 30 30 30 15 min
Cyclic : 10 cycles
Temperature : 85°C Time : 500 hours
Temperature : -25°C Time : 500 hours
Salt Mist : 5% Time : 48 hours
Engagement and
separation forces
Gauge retention force
Mating durability
Vibration
Shock
Compasite
Temparature-humidity
Cyclic test
Temperature cycling
Dry heat
Cold
Salt Mist
Engagement force: 12.5 N
Separation force: 12.5 N
1.0N to 2.5N
1) Attenuation shall be satisfild after the test.
2) No breakage,crack or looseness on
components.
No significant corrosion.
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
67
MU SC FC Harsh
Environment Attenuators Terminators
1310nm
1550nm
In-line attenuators
Back Cable Assembly (2mm diameter cable type)
Ordering Information (Back cable assembly)
SM
d B
2 0
MU-AT
23.7
4.4
6.6
Part Number 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
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
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.
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.
HMU - PAT BH 101 K Q - L
1 2 4 5 6 73
Back harness
Attenuation Return loss Wavelength Split sleeve Fiber typeSpecification
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
40dB Zirconia SM
0.5dB max.
±0.5dB
±0.8dB
±1dB
±1.2dB
±ATT∞10%dB
L(+10
0 %)m
HRS JPN ππππ
Series Name HMU
Indicates a in-line type attenuator
Indicate a back cable assembly
Mating connector (Note)
011 : FC connector, 2 mm diameter cable
04G : SC connector, 2 mm diameter cable
101 : MU connector, 2 mm diameter cable
Polishing type K: AdPC
Fiber cable type(Note)
Q: SM-9.5/125, diameter 2mm Jacket color: Yellow
Cable length
Unit: Meters
1
2
3
4
5
6
7
68
MUSCFC
Harsh
Environment
AttenuatorsTerminators
BProcedure for Changing the Attenuator Element
Withdrawal Procedure
Insertion Procedure
qAlign the triangle mark of the
boot on the back cable assembly
with the black indexing mark on
the attenuator.
qPress the back
cable assembly
toward the attenuator.
wInsert the back cable assembly
into the attenuator.
w
Turn right the back cable assembly
and release the lock.
eTurn right the back cable assembly
to engage connection lock. After
turning, the triangle mark of the
boot will be aligned with the
attenuation label.
ePull away the back cable assembly.