MagTek MagneSafe V5 - Manual (Page 35)

Section 2. Communications
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to the host using a USB cable, as is the case when doing firmware updates,
this property will return the software ID of the wireless reader.
Example Get Software ID property Request (Hex):
Cmd Num Data Len Prp ID
00 01 00
Example Get Software ID property Response (Hex):
Result Code Data Len Prp Value
00 0B 32 31 30 34 32 38 31 32 44 30 31
USB Serial Num Property (USB)
Property ID: 0x01
Property Type: String
Length: 0 – 15 bytes
Get Property: Yes
Set Property: Yes
Default Value: Packed hexadecimal device serial number set when the reader is configured.
Description: The value is an ASCII string that represents the USB serial number. This
string can be 0 – 15 bytes long. The value of this property, if any, will be sent
to the host when the host requests the USB string descriptor.
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. This
reader must be unplugged for at least 30 seconds to properly power cycle it.
Example Set USB Serial Num property Request (Hex):
Cmd Num Data Len Prp ID Prp Value
01 04 01 31 32 33
Example Set USB Serial Num property Response (Hex):
Result Code Data Len Data
00 00
Example Get USB Serial Num property Request (Hex):
Cmd Num Data Len Prp ID
00 01 01
Example Get USB Serial Num property Response (Hex):
Result Code Data Len Prp Value
00 03 31 32 33