Teach you how to identify the fire resistance of cables

Generally, there are fire performance markings on the outer skin of cables. Taking IBDN cable coding as an example, we will explain how to identify Nordx/CDT's three series of enhanced horizontal cables. They are the IBDN-1200, IBDN-2400, and IBDN-4800LX series. IBDN-1200 consists of special cables such as 1212, 1213, 1224, etc. The IBDN-2400 and IBDN-4800LX series are similar. The first two digits (such as "12" and "24") are related to the maximum recommended data transfer rate. When used for IBDN gigabit cabling solutions, cables can be divided into 1.2 and 2.4Gbps.
The third digit is related to cable design and is represented as follows:
·1 represents UTP and the use of some halogenated materials (such as PVC, LSPVC, or FEP)
·2 represents UTP and the use of low smoke non-toxic materials (such as: LSOH)
The last digit represents the level of flame propagation, expressed as follows:
·1 represents CM C
MX General Purpose;
·2 represents CMR (inc. FT-4) * vertical shaft;
·3 represents CMP flame retardant;
·4 represents IEC332-l.
Nordx/CDT also offers three series of optical cables. They are IBDN-FX300, IBDN-FX600, and IBDN-FX2000 fiber optic cables, with fire performance marked as:
OFN - Non conductor Fiber Optic Cable
FNR - a non-conductive vertical backbone