Encom Harmony IP I/O8, User Manual

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Harmony IP I/O8 Network Monitoring & Control User Manual
33
LOOP BACK STATUS CONFIRMATION
For applications requiring confirmation of data reception or confirmation of end device status, an IP I/O8
installation can be configured with a “Loop Back” or “External” status confirmation:
1. Loop Back Status confirmation requires connecting the IP I/O8 Output to the end device as well as one
of the IP I/O8 Inputs. The Output is looped back to an Input. This setup confirms the IP I/O8 has
received the Contact Closure status change only. It does not indicate the status of the end device.
2. External confirmation requires the user to connect a ‘status signal’ from the equipment into one of the
IP I/O8 Inputs. This setup confirms the Contact Closure status change was received by the IP I/O8 and
it provides an indication of the status of the end device.
Please ensure that the RF LED is solid in both Master and Remote radios. This helps assure proper
communication.
1. Using a Loop Back Status Confirmation
The following application shows how to setup a system configured with a Loop Back Confirmation
Status.
The diagram is as follows:
The system would operate in the following manner:
1.
The switch at the HARMONY IP I/O8 (Master) is turned ON.
2. This status change is transmitted to the Remote Radio.
3. Output 1 of the Remote Radio is activated.
4. The relay is activated by Output 1 (which is to connect to an end device).
5. Input 1 of the Remote Radio is pulled low by Output 1 and is activated. This status change is
transmitted to the Master.
6. Output 1 of the Master is activated, which turns the corresponding LED ON.
This setup confirms the Remote Radio received the status change, but it does not indicate the status
of the device connected to the Remote Radio.
INPUTS
1 2 3 4 5 6 7 8
OUTPUTS
1 2 3 4 5 6 7 8
HARMONY IP I/O8
Common Ground
for all equipment
inside cabinet
INPUTS
1 2 3 4 5 6 7 8
OUTPUTS
1 2 3 4 5 6 7 8
HARMONY IP I/O8
12V LED
Master Site Remote #1 Site