Products > MCN Systems > Hardware Modules> I/O
MCN I/O Modules
GPIO
General Purpose Input/Output Modules are available with combinations for opto-isolated inputs, SSR (Solid-State Relay) outputs, or mechanical relay outputs. They can be used to monitor and control a wide range of devices at remote sites, including:
- Generators
- Door Sensors & Intrusion Alarms
- Door Locks & Gate Controls
- Power Fail Sensors
- Temperature Alarms
- Microwave/T1 Link Status
- Tower Lights
GPIO-CVT
The GPIO-CVT Module is a special version of the GPIO-1212A module. It converts 12 inputs to 12 outputs. It may be used for buffering signals, level translation, and/or logic inversion. It can also be used to convert N.C. circuits to N.O. circuits, and N.O. circuits to N.C. circuits.
IOB
The IOB Input/Output Interface Module connects I/O devices (such as relays) to the MCN network. The IOB is used with an MCN Network Interface to create an I/O control system. This module interfaces directly with the RYB-8 Relay Board to provide hi-reliability sealed relay contacts for audio switching. See below for details.
RYB-8 Relay Board
The RYB-8 has the following features:
- 8 DPDT hi-reliability sealed relays (configured to switch circuit pairs), rated for low-level (dry circuit) audio circuits, up to 2A
- Selectable 600 Ohm terminations for the Normally Open, Normally Closed, or Common circuits
- LEDs to indicate energized relays
- Control Connector (relay coil inputs) is pin-compatible with the IOB Module above
- Jumpers to control adjacent relays with a single input
RYB-8 Rack-Mount Panel
This EIA 19" rack-mount panel has spaces to mount four RYB-8 Relay Boards on one side, and a Hot-Standby Power Supply kit on the other. This panel requires 6 RU (10.5") of rack space.
Relay Power Supply
The Relay Power Supply provides 12Vdc to power the relay coils of the RYB-8 Relay Board. The input voltage to the Relay Power Supply can vary between 100 and 240 Vac.
Relay Power Distribution Board
The Relay Power Distribution Board provides distribution and monitoring for dual redundant power supplies in systems where a power supply failure cannot be tolerated. The outputs from redundant power supplies are independently connected to inputs on the Relay Power Distribution Board. Each supply input on this board is separately fused, and has LEDs to indicate their status.