Vernier LabPro - Manual (Page 73)

Revision Date: 08/02/02
LabPro Technical Manual 73
LabPro Hardware
Connector Pinouts
LabPro sensors use 6-pin British Telecom-style connectors. Pin-1 is always farthest from the tab.
Pin Analog CH1, CH2, CH3 Analog CH4 DIG/SONIC1 & DIG/SONIC2
(Right-hand Connector) (Right-hand Connector) (Left-hand Connector)
Sonic Digital
1 Vin (-10 to +10 V) Analog Out and/or
Vin (+/- 5V only)
Echo D0
2 Gnd Gnd Init D1
3 Vres/Smart ID Data Vres/Smart ID Data Auto-ID D2
4 Auto-ID/ Smart ID CLK Auto-ID/ Smart ID CLK +5 Volts DC +5 Volts
DC
5 +5 Volts DC +5 Volts DC Gnd Gnd
6 Vin-low (0 to 5 V) Vin-low (0 to 5 V) Not Applicable D3
Vin Vin-low
Channels: CH1, CH 2, CH 3, CH 4 CH1, CH2, CH3, CH 4
Input signal: Analog data Analog data
Input range: ±10 Volts (CH1–3) ±5 Volts
(CH4)
0 to 5 Volts
Resolution (using LabPro’s
bit
−
12 A/D converter):
4.9 mV 1.2 mV
Input impedance: 1.0 M
Ω
>10 M
Ω
•
Vres: Output reference voltage from LabPro through a 15 Kohm resistor. When using this feature,
Vres should be tied to Vin-low and the value to be measured should be connected between Vin-
low and Gnd.
•
Gnd: Ground (common for all channels).
•
Auto-ID: Auto-ID sensor detection data input. ( Auto-ID resistor connected from pin 4 to ground.)
•
Echo: Ultrasonic motion detector input.
•
Init: Distance initialization signal
•
D0 In/Out to D3 In/Out: Input or output pins for digital pulses.
•
Smart ID Clk: Clock to synchronize data transfer from smart probes.