Decoding Outer Jacket of MTP/MPO Cable

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As high density cabling system has been
widely deployed, MTP/MPO cable can be easily found in network deployment. But
when you buy MTP/MPO cable in the online store, you must have been encountered
with the situation where you not only have to select single-mode or multimode,
12 fibers or 24 fibers, but also have to consider the outer jacket of the cable
which can protect the cable from damage. According to different cabling
environment, there are different types of outer jackets, among which CMP, LSZH,
CMR, CM are mostly used. How much do you know about them? This article will
decode outer jacket of MTP/MPO cable and I hope it will be helpful for you when
buying MTP/MPO
cable.

 

CMP

CMP (plenum-rated) cable complies the
IEC (International Electrotechnical Commission) 60332-1 flammability standard.
It has passed stringent burn testing and is suitable for installation into air
plenum spaces, where environmental air is transported. Typical plenum spaces
are between the structural ceiling and the drop ceiling or under a raised
floor. CMP cable is designed to restrict flame propagation no more than five
feet as well as limit the amount of smoke emitted during the fire. In spite of
this, for safety reason, any high-voltage equipment is not allowed in plenum
space because the fresh air can greatly increase the danger of rapid flame
spreading if the equipment is on fire. Because it has high fire-retardant, it
usually costs more than other types.

 

LSZH

The LSZH (low smoke zero halogen, also
refers to LSOH or LS0H or LSFH or OHLS) has no exact IEC code equivalent. The
LSZH cable is based on the compliance of IEC 60754 and IEC 61034. It is the
newest in a family of ratings and it is sometimes refereed to as low toxicity
cable. Containing no halogen type compounds that forms these toxic substances,
LSZH cable gives of very little smoke and does not produce a dangerous gas/acid
combination when exposed to flame. LSZH cable is suitable to be used in place
where air circulation is poor such as aircraft, rail cars or ships. However, it
is less fire-retardant than CMP.

 

CMR And CM

CMR (riser-rated) complies IEC 60332-3
standards. CMR cable is designed to prevent fires from spreading floor to floor
in vertical installations. It can be used when cables need to be run between
floors through risers or vertical shafts. CM (in-wall rated) cable is a general
purpose type, which is used in cases where the fire code does not place any
restrictions on cable type. Some examples are home or office environments for
CPU to monitor connections.

 

Conclusion

To select a suitable MTP/MPO cable for
your network deployment, it is necessary to learn about the relevant details of
cable ratings, which is as important as other factors. As a professional MTP
patch cable supplier, FS.COM provides high quality plenum and LSZH MTP/MPO
patch cord at affordable prices.