EM Series
System characteristics |
EM 4450 |
EM 4200 |
Total memory [bit] |
EEPROM: 1024 |
ROM: 128 or 96, 64 |
Memory organisation |
32 blocks, 32 bits each |
- |
Usable memory [bit] |
928 |
- |
Data transfer |
contactless |
contactless |
Frequency range [kHz] |
100...150 |
100...150 |
Baudrate [KBd] |
2 or 4 |
ca. 2 |
Write transfer speed [ms] |
ca.25,6 |
N/A (read only) |
Read distance [m]; depending on reader antenna geometry |
up to 0,30 - 0,60 |
up to 0,80 |
Write distance [m]; depending on antenna geometry |
up to 0,30 - 0,50 |
N/A |
Write endurance [cycles] |
100 000 |
N/A |
Data retention [years] |
10 |
N/A |
Security features |
32 bit password and control world |
One-time serial ID Number (Fab programmed) |
|
32 bit Device Serial Number (Read Only Laser ROM) |
Parity bit and Customer Code |
|
32 bit Device Identification Number (Read Only Laser ROM) |
|
|
No data encryption |
|