Connecting to External Devices
External devices are connected to the camera through the I/O terminal block. The pinout for the I/O terminal block is shown in the following diagram:
Figure 1: Example application.
- GND
- RS-485 RX/TX+ — Half-duplex RS-485 interface for controlling external equipment.
- RS-485 RX/TX- — Half-duplex RS-485 interface for controlling external equipment.
- Input (-)/Output A — Shared pin for Input and Output.
- Input (+) — The input uses a photocoupler and is electrically isolated from the internal circuitry. The input voltage should not exceed 12 V.
- Output B — The output uses a photocoupler and is electrically isolated from the internal circuitry. The output terminal (A and B) connections can be made with either polarity. The output can drive a maximum load of 50 V and 120 mA.
- * — Relay
- ** — Switch
- 0 — External Device