COMMS-300

Intercom units provide an interface between two channels of 2-wire party-line intercom audio and two channels of 4-Wire analog line-level signals

The COMMS 300 and the openGear version, Intercom units provide a means to interface between two channels of 2-wire party-line intercom audio and two channels of 4-Wire analog line-level signals. The unit is capable of performing auto nulling for each channel with the push of a button. In addition, each of the 4-Wire input and output channel levels are monitored and displayed on easy to understand front panel VU meters. With the flip of a switch the unit can be a +28VDC party-line voltage power source while providing the 200 ohm intercom audio termination on both channels. If so desired, the party-line source and termination can be removed by just flipping the switch back. The unit can also be configured to work with either RTS party-line or Clear Com party-line equipment with the flip of a front panel control switch. This switch adjusts the output gain between the party line circuitry and the 4 Wire line level circuitry depending on which type of units one is interfacing with Auto nulling is done to achieve maximum return loss between the 4 Wire input and the 4 Wire output channels.

The Intercom unit contains four 5-segment LED VU meters on the front panel. The first set displays the 4 Wire input levels for Channel 1 as well as the 4 Wire output levels for Channel 1. The second set of VU meters display the input and output levels associated with Channel 2. The OG-Comms is fully openGear compatible, an industry standard card frame, fully SNMP controllable and monitorable through DashBoard industry standard software. The openGear frame also offers redundant power supplies. By adding the MultiDyne OG-Comms Audio fiber transport card, a partiline can be extended over fiber.

• Rugged Portable Design
• Rack Mountable
• Ideal for interface to Fiber Transport
• Auto Null
• Supplies party-line power up to 6 Belt Packs
• RTS and ClearCom compatible
• Ideal for Belt Pack Fiber extension or matrix
• Porable, Rack mount, and openGear versions