MagTek USB INSERTION READER - Manual (Page 55)

Section 5. USB Communications (KB)
47
PRE CARD STRING PROPERTY
Property ID: 18 (0x12)
Property Type: String
Length: 0 – 7 bytes
Get Property: Yes
Set Property: Yes
Default Value: The default value is no string with a length of zero.
Description: The value is an ASCII string that represents the device’s pre card string. This
string can be 0 – 7 bytes long. This string is sent prior to all other card data.
This property is stored in non-volatile memory, so it will persist when the unit
is power cycled. When this property is changed, the unit must be reset (see
Command Number 2) or power cycled to have these changes take effect.
Example Set Pre Card String property Request (Hex):
Cmd Num Data Len Prp ID Prp Value
01 04 12 31 32 33
Example Set Pre Card String property Response (Hex):
Result Code Data Len Data
00 00
Example Get Pre Card String property Request (Hex):
Cmd Num Data Len Prp ID
00 01 12
Example Get Pre Card String property Response (Hex):
Result Code Data Len Prp Value
00 03 31 32 33
POST CARD STRING PROPERTY
Property ID: 19 (0x13)
Property Type: String
Length: 0 – 7 bytes
Get Property: Yes
Set Property: Yes
Default Value: The default value is no string with a length of zero.
Description: The value is an ASCII string that represents the device’s post card string.
This string can be 0 – 7 bytes long. This string is sent after all other card data.
This property is stored in non-volatile memory, so it will persist when the unit
is power cycled. When this property is changed, the unit must be reset (see
Command Number 2) or power cycled to have these changes take effect.
Example Set Post Card String property Request (Hex):
Cmd Num Data Len Prp ID Prp Value
01 04 12 31 32 33