RedLab 1008 User's Guide
Functional Details
15
LED Illumination
When the LED is…
It indicates…
Steady
The RedLab 1008 is connected to a computer or external USB hub.
Blinks continuously
Data is being transferred.
Blinks three times
Initial communication is established between the RedLab 1008 and the computer.
Blinks at a slow rate
The analog input is configured for external trigger. The LED stops blinking and illuminates
steady green when the trigger is received.
Digital I/O connector and pin out
Digital I/O connections are made to the DB37 connector on the top edge of the RedLab 1008. This connector
provides connections for 24 digital lines (
Port A0
to
Port C7
), six ground connections (
GND
), and two power
output terminals (
USB +5V Out
). Refer to Figure 4 and the table below for the DB37 connector pin out.
Digital I/O connections (Port A0 through Port C7)
The 24 digital I/O pins (
Port A0-A7
,
Port B0-B7
and
Port C0-C7
) are TTL-level compatible. Each pin has a
47 kilohm (k
Ω
) pull-up resistor and is configured as an input by default. If needed, the RedLab 1008 can be
factory configured to provide pull-down resistors.
Caution!
Port A0 through Port C7 have no overvoltage/short circuit protection. Do not exceed the voltage
limits or you may damage the pin or the RedLab 1008. To protect these pins, you should use a series
resistor.
19
37
1
20
Figure 4. DB37 Digital I/O connector
DB37 connector pin out
Pin
Signal Name
Pin
Signal Name
1
n/c
20
USB +5V Out
2 n/c
21
GND
3
Port B7
22
Port C7
4
Port B6
23
Port C6
5
Port B5
24
Port C5
6
Port B4
25
Port C4
7
Port B3
26
Port C3
8
Port B2
27
Port C2
9
Port B1
28
Port C1
10
Port B0
29
Port C0
11 GND
30
Port
A7
12 n/c
31
Port
A6
13 GND
32
Port
A5
14 n/c
33
Port
A4
15 GND
34
Port
A3
16 n/c
35
Port
A2
17 GND
36
Port
A1
18
USB +5V Out
37
Port A0
Summary of Contents for RedLab 1008
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