42
Revision 1 2017
CDC seven
GPIO ports
These are two 25-way D-sub female connectors; IN has eight opto-isolated inputs
and OUT carries eight sets of relay contacts. These may be used in conjunction
with the Cue List; external equipment may be triggered on specific Cues, or
Cues may be recalled by external commands. Configuration of these functions is
performed via the Control Screen: see the Software Manual for details.
The GPIO outputs are in the form of eight fully isolated changeover relays.
Common (C), normally open (N/O) and normally closed (N/C) contacts for each
relay are available. The relay contacts are rated at 30 V and 1 A DC.
The GPIO inputs are rated at +/- 25 V maximum; a voltage > 5 V (of the correct
polarity) is required to activate the input.
The pinouts of the two connectors are as follows:
Pin
GPIO IN
GPIO OUT
1
Input 1 +ve
Relay 1 CO
2
Input 1 –ve
Relay 1 N/O
3
n/u
Relay 2 N/C
4
Input 3 +ve
Relay 3 CO
5
Input 3 –ve
Relay 3 N/O
6
n/u
Relay 4 N/C
7
Input 5 +ve
Relay 5 CO
8
Input 5 –ve
Relay 5 N/O
9
n/u
Relay 6 N/C
10
Input 7 +ve
Relay 7 CO
11
Input 7 –ve
Relay 7 N/O
12
n/u
Relay 8 N/C
13
GND
GND
14
n/u
Relay 1 N/C
15
Input 2 +ve
Relay 2 CO
16
Input 2 –ve
Relay 2 N/O
17
n/u
Relay 3 N/C
18
Input 4 +ve
Relay 4 CO
19
Input 4 –ve
Relay 4 N/O
20
n/u
Relay 5 N/C
21
Input 6 +ve
Relay 6 CO
22
Input 6 –ve
Relay 6 N/O
23
n/u
Relay 7 N/C
24
Input 8 +ve
Relay 8 CO
25
Input 8 –ve
Relay 8 N/O
MIDI I/O
Used for sending or receiving MIDI data for control of external hardware, or
for receiving MIDI data from an external source to control various parts of the
control surface, such as scene management. Configuration of these functions is
performed via the Control Screen: see the Software Manual for details.
