MPO-MPO Pre-Term characteristics
The Pre-Term is based on an advanced Micro-Bundle design for the cable. The central strength element and the aramid yarns result in a mechanical strong cable, while the Micro-Bundle allow to reduce the diameter of the cable.
This round cable design facilitates the installation of the MPO-MPO Pre-Term: the small bending radius in any direction eliminates the problems of preferential bending associated with traditional ribbon MPO cables.
The small diameter of 5.4 mm for cables up to 48 fibres and of 6.4 mm for the cable with 96 fibres of the cable reduces significantly the expensive space required for cabling in a data centre and facilitates the airflow. The small diameter also reduced the weight of the cable putting less requirements on the cable trays.
The Pre-Term is delivered with protecting tubes around the installed MPO-connectors and with a pulling eye on one side. This pulling eye is connected to the internal strength element of the cable.
The MPO fan-out starts at 50 cm from the cable grand and every next connector is 12 cm further away from the cable gland. For the 96 core the MPO connectors are grouped by 2 for easy installation in the patch panel and the distance between 2 pairs of MPO connectors is 12 cm.
The Pre-Term is available with OM3, OM4 and singlemode fibres. The singlemode fibres are according the specifiactions for G652D and OS2 cables. Details on the fibre specifications can be found in the detailed fibre datasheets.
The typical value for the insertion loss for a normal loss MPO-MPO connection is 0,3 dB. The limit value is 0,6 dB measured according to standard IEC61300-3-45.
The typical value for the insertion loss for a low loss MPO-MPO connection is 0,2 dB. The limit value is 0,35 dB measured according to standard IEC61300-3-45.
Polarity in the optical channel during installation is guaranteed due to a pair flip fibre construction. This is in agreement with standard TIA 568-B-1-7-2006 method C. It allows the continuous use of the standard patch cords eliminating the need to buy optically straight patch cords. Also polarity is maintained with the same type of cassette on both sides of the channel without the need to flip the cassette on one side.
The MPO-MPO Pre-Term has standard non-pinned (female) connectors. This matches with the pinned (male) connectors in the MPO cassettes.
The Pre-Term meets the requirements for flame non propagation (IEC 60332-1) and fire non-propagation (IEC 60332-3). The outer jacket of the pre-term is LSZH.
The MPO-MPO Pre-Term are custom made to the required customer length.
Consistent quality
In order to produce high quality, reliable pre-terminated multi-fibre cables, there are a number of physical characteristics that must be addressed. Therefore, all LANmark-OF MPO-MPO Pre-Term are fully terminated and tested in a quality assured factory environment. They are delivered with these test results.
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