The Raven M4x products offer the flexibility you need to create a solution to your application.

Mix and match any of the following modules:

476-777, 2-port VoIP Interface

476-150, 2-port 4-wire Analog VF/VOX

This module has two channels in and out, can do DTMF detection, VOX detection with relay output, voice delay up to 1 second on each channel, M-lead (PTT) relay outputs and E-Lead (COR) inputs. The input and output are 600 ohm.

476-151, 2 port 4-wire Analog VF/VOX

This module can do DTMF detection, VOX detection with relay output, voice delay up  to 1 second on each channel, M-lead (PTT) relay outputs and E-Lead (COR) inputs.  The input can be 600 ohm or high impedance, and output is always 600 ohm. This  module is designed for very low frequency signals.

476-152, Two Channel 2-Wire Analog Line Interface (hybrid)

Without battery voltage applied, detects open or disconnected line.

475-155, Conference Interface

This module is a conference bridge. 

476-124, T1/E1 Interface

Can connect each time slot to any port in the M4x Blade/System.

476-184, Alarm Input

There are 16 alarm inputs in this module, which can sense ground or open circuit for alarm.

476-189, RS-422 Interface

This module is two modules wide and interfaces the M4x to a Raven digital orderwire.

476-232, 2-Channel RS-232 Interface

The inputs and outputs can be routed to the host computer or to other RS-232 ports.

476-170, Telephone Interface

Two channels for 2-wire and 4-wire telephones, restricted to two modules per single blade.

476-175, PSTN (or SNI) Interface

Two channels for connecting to 2-wire circuits with telephone battery voltage applied.

476-178, Relay Interface

This relay module has six DPDT relays or eight SPDT relays.

476-180, I/O Interface

This module has the capability of monitoring or control of up to 16 control points.  Each line can be programmed as either an input or an output.

If you don't see what you need, please ask us about it. However unique or complex your requirement, Raven has either already accomplished the task or will apply our flexibility and capability to do so, quickly and competitively.

Raven is an engineering factory focused on providing specialized communications.