Analysis of advantages and disadvantages of elevator card access control card

The types and formats of cards used in the access control system are: EM (ID Read Only) card, Mifareone (M1 Readable and Writable) card, and logic card TM card. Among them, EM cards and M1 cards account for almost 90% of non-contact cards. It is recommended that you use the EM card and M1 card as the access control system. Other cards that are not commonly used are not recommended because they have a small market share and may withdraw from the Chinese market. Then there will be problems with product upgrades and expansion.

EM card features: cost-effective, the highest market share, long reading distance, the disadvantage is read-only, suitable for access control attendance parking systems, not suitable for non-fixed consumption systems. If you want to consider the consumption of a card, it is best to use M1 card. If only for access control attendance, EM card is the first choice. M1 card, the advantage is a readable and writable multi-function card.

The disadvantages are: the price is expensive and the sensing distance is short. It is suitable for non-fixed consumption systems and is not suitable for parking systems. Applicable to access control attendance, no problem. There is a correspondence between the card type and the card reader type. Please note. If you have previously purchased a time and attendance system or a consumer system, it is best to continue to use the original card type, which is the lowest cost.