Tieline Bridge-IT, Руководство пользователя

Страница: 186 / 227

186 Bridge-IT Manual v4.0
© Tieline Research Pty. Ltd. 2019
· 64 virtual WheatNet logic outputs available in Genie Distribution and Merlin
PLUS WheatNet-IP codecs. These allow Tieline WheatNet-IP enabled
codecs to activate functions across a WheatNet-IP network.
About Relays
Bridge-IT has two CMOS solid state relays for the control of equipment, consisting of two relay
closures and two opto-isolated outputs.
Inputs
The input signal is referenced to chassis ground, i.e. the ground reference terminal on the
terminal block is connected the chassis. The input device is a high impedance CMOS device
with a 330 ohm pull-up resistor to +5 volts.
Operation is as simple as joining the input pin to the ground terminal. This can be via a remote
relay contact or the open circuit collector of a transistor or FET. DO NOT feed voltages into
the inputs.
Outputs
CMOS field effect transistors switch a low impedance path between the two pins when
activated. These are opto-isolated and floating above ground. It is important to current-limit the
source as damage will result where the current exceeds 100mA peak-to-peak. No more than
48 volts peak-to-peak should be used as a safety precaution. The resistance of the CMOS
element is approximately 25 ohms in the ON state.
Relay Operation and Pinouts
A closing contact across Input 1 or 2 (pins 5 or 6) to Ground (pin 7) will provide a closing contact
on the remote codec Output 1 (pins 1 and 2) or Output 2 (pins 3 and 4).
For multi-unicast connections to multiple codecs, a contact closure will appear on each of the
compatible (non-G3) remote codecs' corresponding contacts. I.e. Input 1 shorted, Output 1
contacts on all codecs closed.
Pins Pin Function
1 Output 1
2 Output 1
3 Output 2
4 Output 2
5 Input 1
6 Input 2
7 Ground
Important Note: See Creating Rules for more information about how to configure
relay operations with a PC using the Toolbox web-GUI.