Connecting to External Devices
External devices are connected to the recorder through the I/O terminal. The pinout for the I/O terminal is shown
in the following diagram:
1. OUT 2 (Relay Output) — Form-A dry contact outputs. When active, terminals are connected. Terminals are
open when inactive.
Maximum load is 30 V, 2 A or 200 V, 250 mA.
2. OUT 2
3. Ground (GND)
4. OUT 1 (Relay Output) — Form-A dry contact outputs. When active, terminals are connected. Terminals are
open when inactive.
Maximum load is 30 V, 2 A or 200 V, 250 mA.
5. OUT1
6. GND
7. IN 4 (Alarm In) — Active-Low inputs. To activate, connect the Input to the Ground pin (GND). To deactivate,
leave disconnected or apply between 3 – 15 V.
8. IN 3
9. IN 2
10. IN 1
Connecting to External Devices
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