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56 Appendix B: Technical information
The following table lists the electrical specifications of the Matrox Morphis Evo
I/O module under different conditions.
Typical operating voltage and current for Matrox Morphis Evo I/O module (starting from version 000)
Operating condition: all alarm output signals active, and all alarm input signals low (wet mode)
Voltage
3.3 V ± 0.3 V
5 V ± 5 %
12 V ± 8 %
Total
The following table lists the input/output specifications of the Matrox Morphis
Evo I/O module.
Input/output specifications
All voltages referenced to GND
Alarm input signal sensor
Alarm output signal level
Input signal in RS-485
Output signal in RS-485
Current
0.10 A
0.15 A
n/a
8 phototransistor optocoupler ICs. The input signal is connected to the
emitting diode cathode pin.
• Alarm input signal voltage: 0.0 V minimum, 5.0 V maximum.
• In wet mode, to change alarm input signal state (turn phototransistor
on), you need to apply 0.0 V minimum and 2.5 V maximum. The
current sink requirement is 8 mA maximum.
• In dry mode, to change alarm input signal state (turn phototransistor
off), you need to apply 3.0 V minimum and 5.0 V maximum. The
current drive requirement is 5 mA maximum.
8 SPST solid state relay ICs (photo MOSFET).
• Relay on-state current: 0.5 A maximum.
• Relay on-state resistance: 0.7 Ω typical and 1 Ω maximum.
• Relay output withstand voltage: -48 V minimum and 48 V maximum.
• Receiver input signal voltage (A, B): -7 V minimum and 12 V
maximum.
• Receiver differential threshold voltage: ±200 mV.
- Common mode input signal voltage range: -7 V to 12 V.
Specified for a 54 Ω (RS-485) load:
• Differential driver output voltage: 1.5 V minimum.
• Driver common-mode output voltage: 3 V maximum.
Specified for a 100 Ω (RS-422) load:
• Differential driver output voltage: 2 V minimum.
• Driver common-mode output voltage: 3 V maximum.
Power
0.33 W
0.75 W
n/a
1.08 W
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