In an increasing market of preterminated fiber optic cables, this presentation warns End-Users to be careful in asking vendors to put MTP/MPO connectors and not only simple MPO connectors (cheapers) in fiber optic trunk cables. MTP is a patent of US Conec consortium, used by best cabling vendors as ORTRONICS-Legrand. For any additional support: info@conseltel.net

1. 1/14/2003 1
MTP Overview
MTP® Connector Comparison
to MPO connector
MTP is a registered trademark of US Conec, Ltd.

2. 1/14/2003 2
MTP Overview
What is an MPO Connector?
The MPO connector family is defined by IEC-61754-7.
The MTP multi-fiber connector is US Conec’s trademarked name
for our MPO connector. The MTP connector is fully compliant with
IEC-61754-7; therefore it is an MPO connector.
While there are many MPO connectors on the market (Furukawa,
Sumitomo, Fujikura), the MTP parts are distinctly different. The
MTP connector is a high performance MPO!

3. 1/14/2003 3
MTP Overview
MTP ColorMTP Color CodingCoding
• Black – 50µm multimode
• Mustard – MTP Elite™ low loss single-mode
• Green – standard single-mode
• Beige – 62.5µm multimode

4. 1/14/2003 4
MTP Overview
Removable Housing
• Allows easy transition from
male to female and vice versa
• Allows re-polishing

5. 1/14/2003 5
MTP Overview
Internal Components
MPOMTP

6. 1/14/2003 6
MTP Overview
Internal Components
MTP recessed metal pin
clamp and oval spring
MPO plastic pin clamp
and round spring
The spring is not
constrained and may
damage the ribbon.

7. 1/14/2003 7
MTP Overview
Pin Clamp
Typical plastic MPO pin
clamp
MTP recessed pin
clamp
Provides seating
surface for spring.

8. 1/14/2003 8
MTP Overview
Improved MTP Pin Clamp
MTP Recessed Pin Clamp
Makes pin transfer
impossible
Plastic MPO Pin Clamp
Pin transfer possible

9. 1/14/2003 9
MTP Overview
Spring
MTP oval spring provides more
ribbon clearance; enhances
mechanical performance.
MPO round spring allows
less ribbon clearance;
limits mechanical
performance.
Two 12f ribbons

10. 1/14/2003 10
MTP Overview
Floating Ferrule
The MT ferrule can move freely inside the MTP housing while
mated. This protects it from strain during side load.

11. 1/14/2003 11
MTP Overview
Typical (Low-loss) MPO Mechanical Performance
0.00
0.50
1.00
1.50
2.00
2.50
3.00
Initial Twist 3# 0° Proof 10# 90° Proof
7.5#
0° TWAL 5# 90° TWAL
0.5#
A-1
A-2
A-3
A-4
A-5
A-6
A-7
A-8
B-1
B-2
B-3
B-4
B-5
B-6
B-7
B-8
Typical (Low-loss) MPO Mechanical Performance
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
Initial Twist 3# 0° Proof 10# 90° Proof
7.5#
0° TWAL 5# 90° TWAL
0.5#
A-1
A-2
A-3
A-4
A-5
A-6
A-7
A-8
B-1
B-2
B-3
B-4
B-5
B-6
B-7
B-8
Typical MTP EliteTM
Mechanical Performance
0.000
0.100
0.200
0.300
0.400
0.500
0.600
0.700
0.800
0.900
1.000
Initial Twist 3# 0° Proof
10#
90° Proof
7.5#
0° TWAL
5#
90° TWAL
0.5#
A# 1
A# 2
A# 3
A# 4
A# 5
A# 6
A# 7
A# 8
B# 1
B# 2
B# 3
B# 4
B# 5
B# 6
B# 7
B# 8
MPO (red) vs. MTP (blue) Mechanical Performance
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
Initial Twist 3# 0° Proof 10# 90° Proof
7.5#
0° TWAL 5# 90° TWAL
0.5#
Superior Mechanical Performance

12. 1/14/2003 12
MTP Overview
Elliptical Guide Pin
MTP Guide Pin MPO Guide Pin
Sharp edges…not goodSharp edges…not good

13. 1/14/2003 13
MTP Overview
Durability Results
Typical MPO
guide hole
damage after
500 matings
MTP guide hole
damage after
600 matings

14. 1/14/2003 14
MTP Overview
Jacketed, Ribbon, and Short Versions
Housing kit for
jacketed cable
Housing kit for
bare ribbon
“Short” housing kit
for PCB applications

15. 1/14/2003 15
MTP Overview
SummarySummary
• Color coding by fiber type
• Removable housing for gender change and rework
• Metal pin-clamp to prevent pin transfer
• Recessed pin clamp to prevent spring-ribbon contact
• Oval spring for more ribbon clearance
• Increased ferrule float for improved mechanical performance
(US patent # 6085003)
• Elliptical guide pin tip for improved durability via less guide-
hole wear (US patent pending)
• Connector kits for jacketed cable, ribbon, and board
applications (45% footprint reduction) available