Cards and locking device IDs

“Cards” in this document refer to all types of passive identification media.

Cards offer advantages such as:

Cards also have drawbacks, however:

It is especially important to take the small memory space into account.

Distribution of locking device IDs in AXM Classic

As a basic rule, each row in the column with locking devices receives its own LID (lock ID). A locking device can also use several locking device IDs – for example, if there are two separate reader thumb-turns on the free-turning Digital Cylinder AX. In this case, a locking device ID is used for each reader thumb-turn.

There are 64,128 locking device IDs (0 to 64,128) in an active locking system.

The first 128 locking device IDs (0 to 127) are reserved for internal purposes and cannot be used.

You can use the locking device IDs 128 to 64,128 with a transponder. You can manage 64,000 locking devices in just one locking system with a single transponder.

This is different for cards. Standard cards have far less memory space than a transponder. You must take this into account when configuring the card (see Card templates and Adding a card configuration). What’s more, the size of your cards also plays a role in the number of locking devices that you can actually manage with your cards.

Cards can only be used in conjunction with a card template. Card templates differ in a number of characteristics but the most important ones are quite clear:

Memory requirements and the locking device ID section are interlinked: The more locking device IDs you write on the card, the greater the memory you require is. Example: The MC8000L_AV template can manage eight times more locking devices, but it also requires four times as much memory on the card:



  • 528 bytes
  • Locking device IDs 128 to 1127 (= 1000 entries)

  • 2048 bytes
  • Locking device IDs 128 to 8127 (= 8000 entries)

It is evident that cards in the entire range for locking device IDs can only address the lower locking device IDs in the lower section.

These low locking device IDs are therefore particularly “useful”. Active locking devices are not suitable in the lower range – they cannot communicate with cards anyway, so it makes no sense if they are assigned the “useful” low locking device IDs.

Your AXM Classic allows for this. Active locking devices are generally only created with locking device ID 10,000 and onwards. Locking device IDs 128 to 9,999 are thus reserved for passive and hybrid locking devices – regardless of whether you even use cards or not.

In large locking systems, it is of course possible that the separate ranges become too small. In such cases, AXM Classic will take number outside the designated range:

“Too many” passive/hybrid locking devices

“Too many” active locking devices

If you assign passive or hybrid locking devices to all locking device IDs from 128 to 9999, the “reserved” range is allocated. Newly created locking devices are then treated equally and receive the next higher free locking device ID – regardless of whether they are active or passive.

As soon as a locking device ID is free in the lower range once more (e.g. locking device reset; see Reset), it is exclusively assigned a passive or hybrid locking device again.

If all locking device IDs from 10,000 to 64,128 are issued, AXM Classic will also assign active locking devices to these useful locking device IDs in the lower range.

As soon as a locking device ID is free in the upper range once more (e.g. locking device reset; see Reset), it is exclusively assigned an active locking device again.

Locking device IDs in the Locks tab

You can also see the distribution in the Lock ID column in the Locks tab.

In this example, the first two locking devices are hybrid locking devices and assigned a locking device ID in the useful range (128 and 129). The last two locking devices are active locking devices and are therefore assigned a locking device ID numbered 10,000 and upwards (10,000 and 10,001).

Your benefit with the locking device IDs concept

You can also decide to use cards at a later stage (see Enable cards or transponders). All locking devices that you can address with the cards are located in the lower range of locking device IDs. The active locking devices that you would not be able to address with your cards anyway are outside the range of most card templates.

This means that active locking devices do not unnecessarily occupy any memory space on the cards. This means that you can actually use all locking device IDs that will fit onto your card with passive or hybrid locking devices.