Paxton OEM Magstripe reader, clock and data output - Manual (Page 4)

Output format
Tclk
Tclklo
Tsu Thold Data 0 Data 1
Clock
The Clock period (Tclk) is variable and will depend on the speed that the user card is swiped through the reader.
Data period (Tclk) = > 60 µs but < 3000 µs
Data Hold Time (Thold) = Tclk - Tclklo
Data Set-up Time (Tsu) = Tsu = Tclklo
Data Clock Low (Tclklo). This is ‘data dependent’ but will approximate to the following:
If Data = 0 (High) then Tclklo = Tclk / 2
If Data = 1 (Low) then Tclklo = Tclk / 3
The following diagram applies to all readers with serial number greater than or equal to 090008
Readers can be extended using Belden CR9540 10-core overall screened cable to a maximum of 100 metres.
Cable extensions
Voltage
Clock and data bit period
Reader head life
-20 °C +55 °C
5 metres
IPX7
1,000,000
8V DC 14V DC
90 mA 110 mA
60 µs 3000 µs
125 mm/s 1250 mm/s
500 mm/s2
300 Oe 4000 Oe
34 mm 89 mm 34 mm
Specifications
Electrical
Environment
Dimensions
Min Max
Width Height Depth
Current
Operating temperature
Cable length
Reader
IP Rating Outdoor Use
Swipes
Media speed
Media acceleration
Magnetic stripe coercivity