Connecting to External Devices
Connections to external devices is only possible with the VMA-BLU-8P and VMA-BLU-16C devices.
External devices are connected to the appliance through the I/O terminal. The pinout for the I/O terminal is
shown in the following diagram:
Pin
Function
Description
1
IN1
Alarm Inputs — Active-Low inputs. To activate, connect the Input to the
Ground pin (GND). To deactivate, leave disconnected.
2
IN2
3
IN3
4
IN4
5
GND
6
7
8
9
OUT1
Relay Outputs — Form-A dry contact outputs. When active, terminals are
connected. When inactive, terminals are disconnected.
10
11
OUT2
12
13
OUT3
14
15
OUT4
16
Connecting to External Devices
17
