CAT 5 or CAT 5e or CAT 6, what we need actually for building a very reliable IP CCTV cabling structure. The differences are small but impacts are very huge.
Category 5 or CAT 5, are the twisted pair cables used for carrying the signals. This is an oldest standard of cabling suitable for low bandwidth networks usually for 10BaseT i.e. 10MBPS & 100BaseT i.e. 100MBPS, used for transmission of Video or Telephony and with we can often find them in olden modems & telephony systems. Such cables are unshielded & often RJ45 connectors are used for such cables as per TIA/EIA-568 & such cables are terminated in either the T 568A scheme or the T 568B scheme. Such cables are prone to cross-talk due to interference between the wire pairs.
Category 5e or CAT 5e, is an enhanced version of CAT 5 that uses all the twisted pairs & the cross talk is reduced to a very large extent. The bandwidth is same as CAT 5 as well as the maximum length for the transmission is also same.
The main difference between CAT 5 & CAT 5e is that CAT 5e has the reduced interference and very less cross talk.
Category 6 or CAT 6, is designed for the Gigabyte Ethernet & all other physical layers that are backward compatible with CAT 5 or CAT 5e or Voice Grade Cables. CAT 6 cables have very strict specifications to reduce the cross talk & other noises as well as interference’s. The bandwidth for such cables is unto 250MHz & is suitable for 10BASE-T, 100BASE-TX (Fast Ethernet), 1000BASE-T/1000BASE-TX (Gigabit Ethernet), and 10GBASE-T (10-Gigabit Ethernet). The maximum length for the transmission for such cables remains same as CAT 5 & CAT 5e. CAT 6A & CAT 6e are same but with reduced noise & cross-talk.
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