ACTi KCM-5211E - Manual (Page 18)

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Hardware Manual
18
To connect input devices (DI), map the pins to one of the pin combinations below:
Device Pin Mapping Instructions
Digital Input 2
(DI2)
2 DI2 Connect the wires of the one input device to DI2 (Pin 2)
and GND (Pin 4).
4 GND
Digital Input 1
(DI1)
6 DI1 Connect the wires of another input device to DI1 (Pin 6)
and GND (Pin 8).
8 GND
The table below shows the DI/DO connection specifications:
Device
DI
Connection design TTL - compatible logic levels
Voltage
To trigger (low) Logic level 0: 0V ~ 0.4V
Normal (high) Logic level 1: 3.1V ~ 30V
Current 10mA ~ 100mA
DO
Connection design Transistor (Open Collector)
Voltage & Current < 24V DC, < 100mA
Typical Connection
Based on these specifications, if the DI device has a voltage of 0V ~ 30V or the DO device has
a voltage of < 24V (<100mA), then the camera can supply internal power to these devices and
there is no need to connect the DI/DO device to an external power source.
In this case, wire connection to Pins 1 to 4. Use the GND and DI2 pins to connect a DI device
and use the 12V and DO2 pins to connect a DO device. See wiring scheme below:
Consequently, to connect a second DI or DO device, wire the connection to Pins 5 to 8.